[{"intvolume":"        14","date_updated":"2022-03-29T15:48:59Z","author":[{"last_name":"Gröger","first_name":"B.","full_name":"Gröger, B."},{"last_name":"Troschitz","first_name":"J.","full_name":"Troschitz, J."},{"last_name":"Vorderbrüggen","first_name":"J.","full_name":"Vorderbrüggen, J."},{"first_name":"C.","last_name":"Vogel","full_name":"Vogel, C."},{"last_name":"Kupfer","first_name":"R.","full_name":"Kupfer, R."},{"full_name":"Meschut, G.","first_name":"G.","last_name":"Meschut"},{"first_name":"M.","last_name":"Gude","full_name":"Gude, M."}],"title":"Clinching of Thermoplastic Composites and Metals—A Comparison of Three Novel Joining Technologies","status":"public","year":"2021","volume":14,"doi":"10.3390/ma14092286X","user_id":"68518","language":[{"iso":"eng"}],"_id":"30652","page":"2286","project":[{"grant_number":"418701707","_id":"130","name":"TRR 285: TRR 285"},{"name":"TRR 285 - A: TRR 285 - Project Area A","_id":"131"},{"_id":"137","name":"TRR 285 – A03: TRR 285 - Subproject A03"}],"abstract":[{"text":"Clinching continuous fibre reinforced thermoplastic composites and metals is challenging due to the low ductility of the composite material. Therefore, a number of novel clinching technologies has been developed specifically for these material combinations. A systematic overview of these advanced clinching methods is given in the present paper. With a focus on process design, three selected clinching methods suitable for different joining tasks are described in detail. The clinching processes including equipment and tools, observed process phenomena and the resultant material structure are compared. Process phenomena during joining are explained in general and compared using computed tomography and micrograph images for each process. In addition the load bearing behaviour and the corresponding failure mechanisms are investigated by means of single-lap shear tests. Finally, the new joining technologies are discussed regarding application relevant criteria.","lang":"eng"}],"citation":{"mla":"Gröger, B., et al. “Clinching of Thermoplastic Composites and Metals—A Comparison of Three Novel Joining Technologies.” <i>Materials</i>, vol. 14, 2021, p. 2286, doi:<a href=\"https://doi.org/10.3390/ma14092286X\">10.3390/ma14092286X</a>.","bibtex":"@article{Gröger_Troschitz_Vorderbrüggen_Vogel_Kupfer_Meschut_Gude_2021, title={Clinching of Thermoplastic Composites and Metals—A Comparison of Three Novel Joining Technologies}, volume={14}, DOI={<a href=\"https://doi.org/10.3390/ma14092286X\">10.3390/ma14092286X</a>}, journal={Materials}, author={Gröger, B. and Troschitz, J. and Vorderbrüggen, J. and Vogel, C. and Kupfer, R. and Meschut, G. and Gude, M.}, year={2021}, pages={2286} }","ama":"Gröger B, Troschitz J, Vorderbrüggen J, et al. Clinching of Thermoplastic Composites and Metals—A Comparison of Three Novel Joining Technologies. <i>Materials</i>. 2021;14:2286. doi:<a href=\"https://doi.org/10.3390/ma14092286X\">10.3390/ma14092286X</a>","ieee":"B. Gröger <i>et al.</i>, “Clinching of Thermoplastic Composites and Metals—A Comparison of Three Novel Joining Technologies,” <i>Materials</i>, vol. 14, p. 2286, 2021, doi: <a href=\"https://doi.org/10.3390/ma14092286X\">10.3390/ma14092286X</a>.","apa":"Gröger, B., Troschitz, J., Vorderbrüggen, J., Vogel, C., Kupfer, R., Meschut, G., &#38; Gude, M. (2021). Clinching of Thermoplastic Composites and Metals—A Comparison of Three Novel Joining Technologies. <i>Materials</i>, <i>14</i>, 2286. <a href=\"https://doi.org/10.3390/ma14092286X\">https://doi.org/10.3390/ma14092286X</a>","chicago":"Gröger, B., J. Troschitz, J. Vorderbrüggen, C. Vogel, R. Kupfer, G. Meschut, and M. Gude. “Clinching of Thermoplastic Composites and Metals—A Comparison of Three Novel Joining Technologies.” <i>Materials</i> 14 (2021): 2286. <a href=\"https://doi.org/10.3390/ma14092286X\">https://doi.org/10.3390/ma14092286X</a>.","short":"B. Gröger, J. Troschitz, J. Vorderbrüggen, C. Vogel, R. Kupfer, G. Meschut, M. Gude, Materials 14 (2021) 2286."},"publication":"Materials","department":[{"_id":"157"}],"type":"journal_article","date_created":"2022-03-28T12:51:22Z"},{"publication":"Key Engineering Materials","citation":{"short":"M. Busch, T. Hausotte, Key Engineering Materials 883 (2021) 41–48.","chicago":"Busch, M., and T. Hausotte. “Determination of the Interface Structural Resolution of an Industrial X-Ray Computed Tomograph Using a Spherical Specimen and a Gap Specimen Consisting of Gauge Blocks.” <i>Key Engineering Materials</i> 883 (2021): 41–48. <a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.41\">https://doi.org/10.4028/www.scientific.net/kem.883.41</a>.","apa":"Busch, M., &#38; Hausotte, T. (2021). Determination of the Interface Structural Resolution of an Industrial X-Ray Computed Tomograph Using a Spherical Specimen and a Gap Specimen Consisting of Gauge Blocks. <i>Key Engineering Materials</i>, <i>883</i>, 41–48. <a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.41\">https://doi.org/10.4028/www.scientific.net/kem.883.41</a>","ieee":"M. Busch and T. Hausotte, “Determination of the Interface Structural Resolution of an Industrial X-Ray Computed Tomograph Using a Spherical Specimen and a Gap Specimen Consisting of Gauge Blocks,” <i>Key Engineering Materials</i>, vol. 883, pp. 41–48, 2021, doi: <a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.41\">10.4028/www.scientific.net/kem.883.41</a>.","ama":"Busch M, Hausotte T. Determination of the Interface Structural Resolution of an Industrial X-Ray Computed Tomograph Using a Spherical Specimen and a Gap Specimen Consisting of Gauge Blocks. <i>Key Engineering Materials</i>. 2021;883:41-48. doi:<a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.41\">10.4028/www.scientific.net/kem.883.41</a>","bibtex":"@article{Busch_Hausotte_2021, title={Determination of the Interface Structural Resolution of an Industrial X-Ray Computed Tomograph Using a Spherical Specimen and a Gap Specimen Consisting of Gauge Blocks}, volume={883}, DOI={<a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.41\">10.4028/www.scientific.net/kem.883.41</a>}, journal={Key Engineering Materials}, author={Busch, M. and Hausotte, T.}, year={2021}, pages={41–48} }","mla":"Busch, M., and T. Hausotte. “Determination of the Interface Structural Resolution of an Industrial X-Ray Computed Tomograph Using a Spherical Specimen and a Gap Specimen Consisting of Gauge Blocks.” <i>Key Engineering Materials</i>, vol. 883, 2021, pp. 41–48, doi:<a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.41\">10.4028/www.scientific.net/kem.883.41</a>."},"abstract":[{"lang":"eng","text":"Industrial X-ray computed tomography (XCT) is a tool for non-destructive testing and a volumetric analysis method with the ability to measure dimensions and geometry inside a component without destroying it. However, XCT is a relatively young technology in the field of dimensional metrology and thus faces several challenges. The achievement of a high measurement resolution, which is re-quired to detect small geometrical features, depends on a variety of influencing factors. In this arti-cle, the interface structural resolution (ISR) as one of the key challenges will be investigated. The two-sphere standard called the hourglass standard allows the determination of the structural resolu-tion by evaluation of the surrounding area of an ideal point contact of two spheres after the CT re-construction in form of a neck-shaped transition. Close to the contact point of the two spheres two opposing surfaces exist. Their distances from each other increase as the distance from the contact point of the two spheres increase. The determination of the distances between the spheres’ surface allows a statement about the ISR. A new developed specimen or standard with a variable gap size consisting of calibrated parallel gauge blocks allows statements about the ISR, too. Because of the higher number of probing points of the gauge block standard the results of the determined ISR are more stable compared to the hourglass standard. This paper compares the results of the computed tomography measurements for the designed interface structural resolution standard with those of the hourglass standard. "}],"project":[{"name":"TRR 285: TRR 285","_id":"130","grant_number":"418701707"},{"name":"TRR 285 - C: TRR 285 - Project Area C","_id":"133"},{"name":"TRR 285 – C05: TRR 285 - Subproject C05","_id":"149"}],"date_created":"2022-03-28T13:58:55Z","type":"journal_article","title":"Determination of the Interface Structural Resolution of an Industrial X-Ray Computed Tomograph Using a Spherical Specimen and a Gap Specimen Consisting of Gauge Blocks","status":"public","year":"2021","author":[{"full_name":"Busch, M.","last_name":"Busch","first_name":"M."},{"first_name":"T.","last_name":"Hausotte","full_name":"Hausotte, T."}],"date_updated":"2022-03-30T07:57:53Z","intvolume":"       883","page":"41-48","_id":"30662","language":[{"iso":"eng"}],"user_id":"68518","doi":"10.4028/www.scientific.net/kem.883.41","volume":883},{"publication":"ESAFORM 2021","citation":{"ieee":"D. Köhler, R. Kupfer, J. Troschitz, and M. Gude, “Clinching in In-situ CT – Experimental Study on Suitable Tool Materials,” <i>ESAFORM 2021</i>, 2021, doi: <a href=\"https://doi.org/10.25518/esaform21.2781\">10.25518/esaform21.2781</a>.","apa":"Köhler, D., Kupfer, R., Troschitz, J., &#38; Gude, M. (2021). Clinching in In-situ CT – Experimental Study on Suitable Tool Materials. <i>ESAFORM 2021</i>. <a href=\"https://doi.org/10.25518/esaform21.2781\">https://doi.org/10.25518/esaform21.2781</a>","chicago":"Köhler, D., R. Kupfer, J. Troschitz, and M. Gude. “Clinching in In-Situ CT – Experimental Study on Suitable Tool Materials.” <i>ESAFORM 2021</i>, 2021. <a href=\"https://doi.org/10.25518/esaform21.2781\">https://doi.org/10.25518/esaform21.2781</a>.","short":"D. Köhler, R. Kupfer, J. Troschitz, M. Gude, ESAFORM 2021 (2021).","mla":"Köhler, D., et al. “Clinching in In-Situ CT – Experimental Study on Suitable Tool Materials.” <i>ESAFORM 2021</i>, 2021, doi:<a href=\"https://doi.org/10.25518/esaform21.2781\">10.25518/esaform21.2781</a>.","bibtex":"@article{Köhler_Kupfer_Troschitz_Gude_2021, title={Clinching in In-situ CT – Experimental Study on Suitable Tool Materials}, DOI={<a href=\"https://doi.org/10.25518/esaform21.2781\">10.25518/esaform21.2781</a>}, journal={ESAFORM 2021}, author={Köhler, D. and Kupfer, R. and Troschitz, J. and Gude, M.}, year={2021} }","ama":"Köhler D, Kupfer R, Troschitz J, Gude M. Clinching in In-situ CT – Experimental Study on Suitable Tool Materials. <i>ESAFORM 2021</i>. Published online 2021. doi:<a href=\"https://doi.org/10.25518/esaform21.2781\">10.25518/esaform21.2781</a>"},"abstract":[{"lang":"eng","text":"In lightweight design, clinching is a cost-efficient solution as the joint is created through localized cold-forming of the joining parts. A clinch point’s quality is usually assessed using ex-situ destructive testing methods. These, however, are unable to detect phenomena immediately during the joining process. For instance, elastic deformations reverse and cracks close after unloading. In-situ methods such as the force-displacement evaluation are used to control a clinching process, though deviations in the clinch point geometry cannot be derived with this method. To overcome these limitations, the clinching process can be investigated using in-situ computed tomography (in-situ CT). However, a clinching tool made of steel would cause strong artefacts and a high attenuation in the CT measurement, reducing the significance of this method. Additionally, when joining parts of the same material, the sheet-sheet interface is hardly detectable. This work aims at identifying, firstly, tool materials that allow artefact-reduced CT measurements during clinching, and, secondly, radiopaque materials that can be applied between the joining parts to enhance the detectability of the sheet-sheet interface. Therefore, both CT-suitable tool materials and radiopaque materials are selected and experimentally investigated. In the clinching process, two aluminium sheets with radiopaque material in between are clinched in a single-step (rotationally symmetric joint without cut section). It is shown that e.g. silicon nitride is suited as tool material and a tin layer is suitable to enhance the detectability of the sheet-sheet interface. "}],"project":[{"name":"TRR 285: TRR 285","grant_number":"418701707","_id":"130"},{"name":"TRR 285 - C: TRR 285 - Project Area C","_id":"133"},{"_id":"148","name":"TRR 285 – C04: TRR 285 - Subproject C04"}],"date_created":"2022-03-28T13:39:26Z","type":"journal_article","title":"Clinching in In-situ CT – Experimental Study on Suitable Tool Materials","year":"2021","status":"public","author":[{"first_name":"D.","last_name":"Köhler","full_name":"Köhler, D."},{"first_name":"R.","last_name":"Kupfer","full_name":"Kupfer, R."},{"last_name":"Troschitz","first_name":"J.","full_name":"Troschitz, J."},{"full_name":"Gude, M.","first_name":"M.","last_name":"Gude"}],"date_updated":"2022-03-29T15:53:46Z","_id":"30659","language":[{"iso":"eng"}],"user_id":"68518","doi":"10.25518/esaform21.2781"},{"abstract":[{"text":"As lightweight design gains more and more attention, time and cost-efficient joining methods such as clinching are becoming more popular. A clinch point’s quality is usually determined by ex situ destructive analyses such as microsectioning. However, these methods do not yield the detection of phenomena occurring during loading such as elastic deformations and cracks that close after unloading. Alternatively, in situ computed tomography (in situ CT) can be used to investigate the loading process of clinch points. In this paper, a method for in situ CT analysis of a single-lap shear test with clinched metal sheets is presented at the example of a clinched joint with two 2 mm thick aluminum sheets. Furthermore, the potential of this method to validate numerical simulations is shown. Since the sheets’ surfaces are locally in contact with each other, the interface between both aluminum sheets and therefore the exact contour of the joining partners is difficult to identify in CT analyses. To compensate for this, the application of copper varnish between the sheets is investigated. The best in situ CT results are achieved with both sheets treated. It showed that with this treatment, in situ CT is suitable to properly observe the three-dimensional deformation behavior and to identify the failure modes.","lang":"eng"}],"project":[{"name":"TRR 285: TRR 285","_id":"130","grant_number":"418701707"},{"name":"TRR 285 - C: TRR 285 - Project Area C","_id":"133"},{"name":"TRR 285 – C04: TRR 285 - Subproject C04","_id":"148"}],"publication":"Materials","citation":{"mla":"Köhler, D., et al. “In Situ Computed Tomography—Analysis of a Single-Lap Shear Test with Clinch Points.” <i>Materials</i>, vol. 14, 2021, p. 1859, doi:<a href=\"https://doi.org/10.3390/ma14081859\">10.3390/ma14081859</a>.","bibtex":"@article{Köhler_Kupfer_Troschitz_Gude_2021, title={In Situ Computed Tomography—Analysis of a Single-Lap Shear Test with Clinch Points}, volume={14}, DOI={<a href=\"https://doi.org/10.3390/ma14081859\">10.3390/ma14081859</a>}, journal={Materials}, author={Köhler, D. and Kupfer, R. and Troschitz, J. and Gude, M.}, year={2021}, pages={1859} }","ama":"Köhler D, Kupfer R, Troschitz J, Gude M. In Situ Computed Tomography—Analysis of a Single-Lap Shear Test with Clinch Points. <i>Materials</i>. 2021;14:1859. doi:<a href=\"https://doi.org/10.3390/ma14081859\">10.3390/ma14081859</a>","ieee":"D. Köhler, R. Kupfer, J. Troschitz, and M. Gude, “In Situ Computed Tomography—Analysis of a Single-Lap Shear Test with Clinch Points,” <i>Materials</i>, vol. 14, p. 1859, 2021, doi: <a href=\"https://doi.org/10.3390/ma14081859\">10.3390/ma14081859</a>.","apa":"Köhler, D., Kupfer, R., Troschitz, J., &#38; Gude, M. (2021). In Situ Computed Tomography—Analysis of a Single-Lap Shear Test with Clinch Points. <i>Materials</i>, <i>14</i>, 1859. <a href=\"https://doi.org/10.3390/ma14081859\">https://doi.org/10.3390/ma14081859</a>","chicago":"Köhler, D., R. Kupfer, J. Troschitz, and M. Gude. “In Situ Computed Tomography—Analysis of a Single-Lap Shear Test with Clinch Points.” <i>Materials</i> 14 (2021): 1859. <a href=\"https://doi.org/10.3390/ma14081859\">https://doi.org/10.3390/ma14081859</a>.","short":"D. Köhler, R. Kupfer, J. Troschitz, M. Gude, Materials 14 (2021) 1859."},"type":"journal_article","date_created":"2022-03-28T13:41:29Z","date_updated":"2022-03-30T07:53:37Z","intvolume":"        14","title":"In Situ Computed Tomography—Analysis of a Single-Lap Shear Test with Clinch Points","status":"public","year":"2021","author":[{"first_name":"D.","last_name":"Köhler","full_name":"Köhler, D."},{"full_name":"Kupfer, R.","last_name":"Kupfer","first_name":"R."},{"last_name":"Troschitz","first_name":"J.","full_name":"Troschitz, J."},{"last_name":"Gude","first_name":"M.","full_name":"Gude, M."}],"doi":"10.3390/ma14081859","user_id":"68518","volume":14,"page":"1859","_id":"30661","language":[{"iso":"eng"}]},{"author":[{"last_name":"Wituschek","first_name":"S.","full_name":"Wituschek, S."},{"full_name":"Lechner, M.","last_name":"Lechner","first_name":"M."}],"year":"2021","title":"Friction Characterisation for a Tumbling Self-Piercing Riveting Process","status":"public","intvolume":"       883","date_updated":"2022-03-29T15:54:33Z","_id":"30719","language":[{"iso":"eng"}],"page":"27-34","volume":883,"user_id":"68518","doi":"10.4028/www.scientific.net/kem.883.27","citation":{"bibtex":"@article{Wituschek_Lechner_2021, title={Friction Characterisation for a Tumbling Self-Piercing Riveting Process}, volume={883}, DOI={<a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.27\">10.4028/www.scientific.net/kem.883.27</a>}, journal={Key Engineering Materials}, author={Wituschek, S. and Lechner, M.}, year={2021}, pages={27–34} }","ama":"Wituschek S, Lechner M. Friction Characterisation for a Tumbling Self-Piercing Riveting Process. <i>Key Engineering Materials</i>. 2021;883:27-34. doi:<a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.27\">10.4028/www.scientific.net/kem.883.27</a>","mla":"Wituschek, S., and M. Lechner. “Friction Characterisation for a Tumbling Self-Piercing Riveting Process.” <i>Key Engineering Materials</i>, vol. 883, 2021, pp. 27–34, doi:<a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.27\">10.4028/www.scientific.net/kem.883.27</a>.","chicago":"Wituschek, S., and M. Lechner. “Friction Characterisation for a Tumbling Self-Piercing Riveting Process.” <i>Key Engineering Materials</i> 883 (2021): 27–34. <a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.27\">https://doi.org/10.4028/www.scientific.net/kem.883.27</a>.","short":"S. Wituschek, M. Lechner, Key Engineering Materials 883 (2021) 27–34.","ieee":"S. Wituschek and M. Lechner, “Friction Characterisation for a Tumbling Self-Piercing Riveting Process,” <i>Key Engineering Materials</i>, vol. 883, pp. 27–34, 2021, doi: <a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.27\">10.4028/www.scientific.net/kem.883.27</a>.","apa":"Wituschek, S., &#38; Lechner, M. (2021). Friction Characterisation for a Tumbling Self-Piercing Riveting Process. <i>Key Engineering Materials</i>, <i>883</i>, 27–34. <a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.27\">https://doi.org/10.4028/www.scientific.net/kem.883.27</a>"},"publication":"Key Engineering Materials","project":[{"name":"TRR 285: TRR 285","grant_number":"418701707","_id":"130"},{"_id":"133","name":"TRR 285 - C: TRR 285 - Project Area C"},{"name":"TRR 285 – C02: TRR 285 - Subproject C02","_id":"146"}],"abstract":[{"lang":"eng","text":"Due to increasing demands regarding ecological and economic specifications in vehicle design, the effort required for production is continuously increasing. One trend is the increased use of multi-material systems, which are characterised by the use of different materials such as high-strength steels or aluminium alloys. In addition to the varying mechanical properties of the components, an increased number of variants accompanied by different geometries is leading to increasing challenges on body construction. For the assembly and connection of the individual components, conventional joining methods reach their limitations. Therefore, new joining methods are necessary, which feature properties of versatility and can adapt to process and disturbance variables. One way of achieving tailored joints is to use a tumbling self-piercing riveting process. For the design of the process route, numerical investigations are necessary for which a characterisation of the friction properties is necessary. This paper therefore investigates the contact and friction conditions that occur in a tumbling self-piercing riveting process. The individual contacts between the process components are identified and based on this, suitable processes for the characterisation of the friction factors - and coefficients are selected and performed."}],"date_created":"2022-03-29T10:35:19Z","type":"journal_article"},{"date_created":"2022-03-28T12:46:21Z","type":"journal_article","department":[{"_id":"156"},{"_id":"630"}],"publication":"IOP Conference Series: Materials Science and Engineering","citation":{"bibtex":"@article{Wischer_Steinfelder_Homberg_Brosius_2021, title={Joining with Friction Spun Joint Connectors – Manufacturing and Analysis}, volume={1157}, DOI={<a href=\"https://doi.org/10.1088/1757-899x/1157/1/012007\">10.1088/1757-899x/1157/1/012007</a>}, journal={IOP Conference Series: Materials Science and Engineering}, author={Wischer, Christian and Steinfelder, Christian and Homberg, Werner and Brosius, Alexander}, year={2021}, pages={012007} }","ama":"Wischer C, Steinfelder C, Homberg W, Brosius A. Joining with Friction Spun Joint Connectors – Manufacturing and Analysis. <i>IOP Conference Series: Materials Science and Engineering</i>. 2021;1157:012007. doi:<a href=\"https://doi.org/10.1088/1757-899x/1157/1/012007\">10.1088/1757-899x/1157/1/012007</a>","mla":"Wischer, Christian, et al. “Joining with Friction Spun Joint Connectors – Manufacturing and Analysis.” <i>IOP Conference Series: Materials Science and Engineering</i>, vol. 1157, 2021, p. 012007, doi:<a href=\"https://doi.org/10.1088/1757-899x/1157/1/012007\">10.1088/1757-899x/1157/1/012007</a>.","chicago":"Wischer, Christian, Christian Steinfelder, Werner Homberg, and Alexander Brosius. “Joining with Friction Spun Joint Connectors – Manufacturing and Analysis.” <i>IOP Conference Series: Materials Science and Engineering</i> 1157 (2021): 012007. <a href=\"https://doi.org/10.1088/1757-899x/1157/1/012007\">https://doi.org/10.1088/1757-899x/1157/1/012007</a>.","short":"C. Wischer, C. Steinfelder, W. Homberg, A. Brosius, IOP Conference Series: Materials Science and Engineering 1157 (2021) 012007.","ieee":"C. Wischer, C. Steinfelder, W. Homberg, and A. Brosius, “Joining with Friction Spun Joint Connectors – Manufacturing and Analysis,” <i>IOP Conference Series: Materials Science and Engineering</i>, vol. 1157, p. 012007, 2021, doi: <a href=\"https://doi.org/10.1088/1757-899x/1157/1/012007\">10.1088/1757-899x/1157/1/012007</a>.","apa":"Wischer, C., Steinfelder, C., Homberg, W., &#38; Brosius, A. (2021). Joining with Friction Spun Joint Connectors – Manufacturing and Analysis. <i>IOP Conference Series: Materials Science and Engineering</i>, <i>1157</i>, 012007. <a href=\"https://doi.org/10.1088/1757-899x/1157/1/012007\">https://doi.org/10.1088/1757-899x/1157/1/012007</a>"},"abstract":[{"text":"Nowadays, the production of modern lightweight structures, like a body in white structure requires a wide variety of mechanical joining processes. To fulfill the various demands, mechanical joining processes and joining elements (JE) are used. Very often, they are adapted to the application, which leads in turn to a numerous of different variants, high costs, and loss of the process chain versatility. To overcome this drawback, an innovative approach is the usage of individually produced and task-adapted JE, the so-called friction spun joint connectors (FSJC). These connectors can be modified in shape as well as in material properties. This flexibility offers high potential for lightweight design but also increases the necessary analytical effort regarding the forming process as well as the manufactured joint's properties. Therefore, a new analysis strategy based on the Finite-Element-Method (FEM) is proposed, which numerically determines the local load bearing capacity within a given joint in order to identify the critical regions for load transfer. The process of joining element manufacturing and the analysis strategy will be described in detail and optimization results of the joints are shown. Numerical results are discussed and possible recommendations for joint manufacturing are derived.","lang":"eng"}],"project":[{"name":"TRR 285: TRR 285","_id":"130","grant_number":"418701707"},{"_id":"133","name":"TRR 285 - C: TRR 285 - Project Area C"},{"name":"TRR 285 – C03: TRR 285 - Subproject C03","_id":"147"},{"_id":"132","name":"TRR 285 - B: TRR 285 - Project Area B"},{"_id":"140","name":"TRR 285 – B01: TRR 285 - Subproject B01"}],"page":"012007","_id":"30649","language":[{"iso":"eng"}],"user_id":"14931","doi":"10.1088/1757-899x/1157/1/012007","volume":1157,"status":"public","title":"Joining with Friction Spun Joint Connectors – Manufacturing and Analysis","year":"2021","author":[{"id":"72219","full_name":"Wischer, Christian","last_name":"Wischer","first_name":"Christian"},{"last_name":"Steinfelder","first_name":"Christian","full_name":"Steinfelder, Christian"},{"full_name":"Homberg, Werner","last_name":"Homberg","first_name":"Werner"},{"first_name":"Alexander","last_name":"Brosius","full_name":"Brosius, Alexander"}],"date_updated":"2022-12-23T15:13:27Z","intvolume":"      1157"},{"project":[{"name":"TRR 285: TRR 285","_id":"130","grant_number":"418701707"},{"_id":"133","name":"TRR 285 - C: TRR 285 - Project Area C"},{"name":"TRR 285 – C03: TRR 285 - Subproject C03","_id":"147"}],"citation":{"chicago":"Wischer, Christian, and Werner Homberg. “A Contribution on Versatile Process Chains: Joining with Adaptive Joining Elements, Formed by Friction Spinning.” <i>Production Engineering</i>, 2021. <a href=\"https://doi.org/10.1007/s11740-021-01094-8\">https://doi.org/10.1007/s11740-021-01094-8</a>.","short":"C. Wischer, W. Homberg, Production Engineering (2021).","ieee":"C. Wischer and W. Homberg, “A contribution on versatile process chains: joining with adaptive joining elements, formed by friction spinning,” <i>Production Engineering</i>, 2021, doi: <a href=\"https://doi.org/10.1007/s11740-021-01094-8\">10.1007/s11740-021-01094-8</a>.","apa":"Wischer, C., &#38; Homberg, W. (2021). A contribution on versatile process chains: joining with adaptive joining elements, formed by friction spinning. <i>Production Engineering</i>. <a href=\"https://doi.org/10.1007/s11740-021-01094-8\">https://doi.org/10.1007/s11740-021-01094-8</a>","bibtex":"@article{Wischer_Homberg_2021, title={A contribution on versatile process chains: joining with adaptive joining elements, formed by friction spinning}, DOI={<a href=\"https://doi.org/10.1007/s11740-021-01094-8\">10.1007/s11740-021-01094-8</a>}, journal={Production Engineering}, author={Wischer, Christian and Homberg, Werner}, year={2021} }","ama":"Wischer C, Homberg W. A contribution on versatile process chains: joining with adaptive joining elements, formed by friction spinning. <i>Production Engineering</i>. Published online 2021. doi:<a href=\"https://doi.org/10.1007/s11740-021-01094-8\">10.1007/s11740-021-01094-8</a>","mla":"Wischer, Christian, and Werner Homberg. “A Contribution on Versatile Process Chains: Joining with Adaptive Joining Elements, Formed by Friction Spinning.” <i>Production Engineering</i>, 2021, doi:<a href=\"https://doi.org/10.1007/s11740-021-01094-8\">10.1007/s11740-021-01094-8</a>."},"publication":"Production Engineering","department":[{"_id":"156"},{"_id":"630"}],"type":"journal_article","date_created":"2022-03-29T09:22:51Z","date_updated":"2022-12-23T15:33:08Z","author":[{"id":"72219","last_name":"Wischer","first_name":"Christian","full_name":"Wischer, Christian"},{"full_name":"Homberg, Werner","last_name":"Homberg","first_name":"Werner"}],"title":"A contribution on versatile process chains: joining with adaptive joining elements, formed by friction spinning","year":"2021","status":"public","doi":"10.1007/s11740-021-01094-8","user_id":"14931","language":[{"iso":"eng"}],"_id":"30702"},{"author":[{"last_name":"Weiß","first_name":"D.","full_name":"Weiß, D."},{"last_name":"Schramm","first_name":"B.","full_name":"Schramm, B."},{"full_name":"Kullmer, G.","last_name":"Kullmer","first_name":"G."}],"year":"2021","status":"public","title":"Numerical and Experimental Fracture Mechanical Investigations of Clinchable Sheet Metals Made of HCT590X","intvolume":"       883","date_updated":"2023-01-02T10:33:13Z","language":[{"iso":"eng"}],"_id":"30680","page":"127-132","volume":883,"user_id":"14931","doi":"10.4028/www.scientific.net/kem.883.127","citation":{"apa":"Weiß, D., Schramm, B., &#38; Kullmer, G. (2021). Numerical and Experimental Fracture Mechanical Investigations of Clinchable Sheet Metals Made of HCT590X. <i>Key Engineering Materials</i>, <i>883</i>, 127–132. <a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.127\">https://doi.org/10.4028/www.scientific.net/kem.883.127</a>","mla":"Weiß, D., et al. “Numerical and Experimental Fracture Mechanical Investigations of Clinchable Sheet Metals Made of HCT590X.” <i>Key Engineering Materials</i>, vol. 883, 2021, pp. 127–32, doi:<a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.127\">10.4028/www.scientific.net/kem.883.127</a>.","ieee":"D. Weiß, B. Schramm, and G. Kullmer, “Numerical and Experimental Fracture Mechanical Investigations of Clinchable Sheet Metals Made of HCT590X,” <i>Key Engineering Materials</i>, vol. 883, pp. 127–132, 2021, doi: <a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.127\">10.4028/www.scientific.net/kem.883.127</a>.","short":"D. Weiß, B. Schramm, G. Kullmer, Key Engineering Materials 883 (2021) 127–132.","ama":"Weiß D, Schramm B, Kullmer G. Numerical and Experimental Fracture Mechanical Investigations of Clinchable Sheet Metals Made of HCT590X. <i>Key Engineering Materials</i>. 2021;883:127-132. doi:<a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.127\">10.4028/www.scientific.net/kem.883.127</a>","chicago":"Weiß, D., B. Schramm, and G. Kullmer. “Numerical and Experimental Fracture Mechanical Investigations of Clinchable Sheet Metals Made of HCT590X.” <i>Key Engineering Materials</i> 883 (2021): 127–32. <a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.127\">https://doi.org/10.4028/www.scientific.net/kem.883.127</a>.","bibtex":"@article{Weiß_Schramm_Kullmer_2021, title={Numerical and Experimental Fracture Mechanical Investigations of Clinchable Sheet Metals Made of HCT590X}, volume={883}, DOI={<a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.127\">10.4028/www.scientific.net/kem.883.127</a>}, journal={Key Engineering Materials}, author={Weiß, D. and Schramm, B. and Kullmer, G.}, year={2021}, pages={127–132} }"},"publication":"Key Engineering Materials","project":[{"_id":"130","grant_number":"418701707","name":"TRR 285: TRR 285"},{"name":"TRR 285 - B: TRR 285 - Project Area B","_id":"132"},{"name":"TRR 285 – B04: TRR 285 - Subproject B04","_id":"143"}],"date_created":"2022-03-29T08:43:23Z","type":"journal_article"},{"user_id":"14931","doi":"10.1007/s11740-021-01091-x","language":[{"iso":"eng"}],"_id":"30698","date_updated":"2023-01-02T11:18:51Z","author":[{"full_name":"Gröger, B.","first_name":"B.","last_name":"Gröger"},{"full_name":"Köhler, D.","last_name":"Köhler","first_name":"D."},{"full_name":"Vorderbrüggen, J.","first_name":"J.","last_name":"Vorderbrüggen"},{"full_name":"Troschitz, J.","last_name":"Troschitz","first_name":"J."},{"first_name":"R.","last_name":"Kupfer","full_name":"Kupfer, R."},{"full_name":"Meschut, G.","first_name":"G.","last_name":"Meschut"},{"full_name":"Gude, M.","last_name":"Gude","first_name":"M."}],"title":"Computed tomography investigation of the material structure in clinch joints in aluminium fibre-reinforced thermoplastic sheets","year":"2021","status":"public","department":[{"_id":"157"},{"_id":"630"}],"type":"journal_article","date_created":"2022-03-29T09:15:36Z","project":[{"grant_number":"418701707","_id":"130","name":"TRR 285: TRR 285"},{"name":"TRR 285 - A: TRR 285 - Project Area A","_id":"131"},{"_id":"137","name":"TRR 285 – A03: TRR 285 - Subproject A03"},{"name":"TRR 285 - C: TRR 285 - Project Area C","_id":"133"},{"name":"TRR 285 – C04: TRR 285 - Subproject C04","_id":"148"}],"citation":{"ieee":"B. Gröger <i>et al.</i>, “Computed tomography investigation of the material structure in clinch joints in aluminium fibre-reinforced thermoplastic sheets,” <i>Production Engineering</i>, 2021, doi: <a href=\"https://doi.org/10.1007/s11740-021-01091-x\">10.1007/s11740-021-01091-x</a>.","apa":"Gröger, B., Köhler, D., Vorderbrüggen, J., Troschitz, J., Kupfer, R., Meschut, G., &#38; Gude, M. (2021). Computed tomography investigation of the material structure in clinch joints in aluminium fibre-reinforced thermoplastic sheets. <i>Production Engineering</i>. <a href=\"https://doi.org/10.1007/s11740-021-01091-x\">https://doi.org/10.1007/s11740-021-01091-x</a>","short":"B. Gröger, D. Köhler, J. Vorderbrüggen, J. Troschitz, R. Kupfer, G. Meschut, M. Gude, Production Engineering (2021).","chicago":"Gröger, B., D. Köhler, J. Vorderbrüggen, J. Troschitz, R. Kupfer, G. Meschut, and M. Gude. “Computed Tomography Investigation of the Material Structure in Clinch Joints in Aluminium Fibre-Reinforced Thermoplastic Sheets.” <i>Production Engineering</i>, 2021. <a href=\"https://doi.org/10.1007/s11740-021-01091-x\">https://doi.org/10.1007/s11740-021-01091-x</a>.","mla":"Gröger, B., et al. “Computed Tomography Investigation of the Material Structure in Clinch Joints in Aluminium Fibre-Reinforced Thermoplastic Sheets.” <i>Production Engineering</i>, 2021, doi:<a href=\"https://doi.org/10.1007/s11740-021-01091-x\">10.1007/s11740-021-01091-x</a>.","bibtex":"@article{Gröger_Köhler_Vorderbrüggen_Troschitz_Kupfer_Meschut_Gude_2021, title={Computed tomography investigation of the material structure in clinch joints in aluminium fibre-reinforced thermoplastic sheets}, DOI={<a href=\"https://doi.org/10.1007/s11740-021-01091-x\">10.1007/s11740-021-01091-x</a>}, journal={Production Engineering}, author={Gröger, B. and Köhler, D. and Vorderbrüggen, J. and Troschitz, J. and Kupfer, R. and Meschut, G. and Gude, M.}, year={2021} }","ama":"Gröger B, Köhler D, Vorderbrüggen J, et al. Computed tomography investigation of the material structure in clinch joints in aluminium fibre-reinforced thermoplastic sheets. <i>Production Engineering</i>. Published online 2021. doi:<a href=\"https://doi.org/10.1007/s11740-021-01091-x\">10.1007/s11740-021-01091-x</a>"},"publication":"Production Engineering"},{"type":"journal_article","department":[{"_id":"630"}],"date_created":"2022-03-29T09:17:55Z","project":[{"name":"TRR 285: TRR 285","grant_number":"418701707","_id":"130"},{"name":"TRR 285 - B: TRR 285 - Project Area B","_id":"132"},{"_id":"143","name":"TRR 285 – B04: TRR 285 - Subproject B04"}],"publication":"Production Engineering","citation":{"bibtex":"@article{Weiß_Schramm_Kullmer_2021, title={Holistic investigation chain for the experimental determination of fracture mechanical material parameters with special specimens}, DOI={<a href=\"https://doi.org/10.1007/s11740-021-01096-6\">10.1007/s11740-021-01096-6</a>}, journal={Production Engineering}, author={Weiß, D. and Schramm, B. and Kullmer, G.}, year={2021} }","ama":"Weiß D, Schramm B, Kullmer G. Holistic investigation chain for the experimental determination of fracture mechanical material parameters with special specimens. <i>Production Engineering</i>. Published online 2021. doi:<a href=\"https://doi.org/10.1007/s11740-021-01096-6\">10.1007/s11740-021-01096-6</a>","mla":"Weiß, D., et al. “Holistic Investigation Chain for the Experimental Determination of Fracture Mechanical Material Parameters with Special Specimens.” <i>Production Engineering</i>, 2021, doi:<a href=\"https://doi.org/10.1007/s11740-021-01096-6\">10.1007/s11740-021-01096-6</a>.","chicago":"Weiß, D., B. Schramm, and G. Kullmer. “Holistic Investigation Chain for the Experimental Determination of Fracture Mechanical Material Parameters with Special Specimens.” <i>Production Engineering</i>, 2021. <a href=\"https://doi.org/10.1007/s11740-021-01096-6\">https://doi.org/10.1007/s11740-021-01096-6</a>.","short":"D. Weiß, B. Schramm, G. Kullmer, Production Engineering (2021).","ieee":"D. Weiß, B. Schramm, and G. Kullmer, “Holistic investigation chain for the experimental determination of fracture mechanical material parameters with special specimens,” <i>Production Engineering</i>, 2021, doi: <a href=\"https://doi.org/10.1007/s11740-021-01096-6\">10.1007/s11740-021-01096-6</a>.","apa":"Weiß, D., Schramm, B., &#38; Kullmer, G. (2021). Holistic investigation chain for the experimental determination of fracture mechanical material parameters with special specimens. <i>Production Engineering</i>. <a href=\"https://doi.org/10.1007/s11740-021-01096-6\">https://doi.org/10.1007/s11740-021-01096-6</a>"},"user_id":"14931","doi":"10.1007/s11740-021-01096-6","_id":"30699","language":[{"iso":"eng"}],"date_updated":"2023-01-02T11:19:11Z","title":"Holistic investigation chain for the experimental determination of fracture mechanical material parameters with special specimens","year":"2021","status":"public","author":[{"full_name":"Weiß, D.","first_name":"D.","last_name":"Weiß"},{"last_name":"Schramm","first_name":"B.","full_name":"Schramm, B."},{"full_name":"Kullmer, G.","last_name":"Kullmer","first_name":"G."}]},{"publication":"Proceedings of the Design Society","citation":{"mla":"Zirngibl, C., et al. “Approach for the Automated and Data-Based Design of Mechanical Joints.” <i>Proceedings of the Design Society</i>, vol. 1, 2021, p. 521, doi:<a href=\"https://doi.org/10.1017/pds.2021.52\">10.1017/pds.2021.52</a>.","ama":"Zirngibl C, Schleich B, Wartzack S. Approach for the automated and data-based design of mechanical joints. <i>Proceedings of the Design Society</i>. 2021;1:521. doi:<a href=\"https://doi.org/10.1017/pds.2021.52\">10.1017/pds.2021.52</a>","bibtex":"@article{Zirngibl_Schleich_Wartzack_2021, title={Approach for the automated and data-based design of mechanical joints}, volume={1}, DOI={<a href=\"https://doi.org/10.1017/pds.2021.52\">10.1017/pds.2021.52</a>}, journal={Proceedings of the Design Society}, author={Zirngibl, C. and Schleich, B. and Wartzack, S.}, year={2021}, pages={521} }","apa":"Zirngibl, C., Schleich, B., &#38; Wartzack, S. (2021). Approach for the automated and data-based design of mechanical joints. <i>Proceedings of the Design Society</i>, <i>1</i>, 521. <a href=\"https://doi.org/10.1017/pds.2021.52\">https://doi.org/10.1017/pds.2021.52</a>","ieee":"C. Zirngibl, B. Schleich, and S. Wartzack, “Approach for the automated and data-based design of mechanical joints,” <i>Proceedings of the Design Society</i>, vol. 1, p. 521, 2021, doi: <a href=\"https://doi.org/10.1017/pds.2021.52\">10.1017/pds.2021.52</a>.","chicago":"Zirngibl, C., B. Schleich, and S. Wartzack. “Approach for the Automated and Data-Based Design of Mechanical Joints.” <i>Proceedings of the Design Society</i> 1 (2021): 521. <a href=\"https://doi.org/10.1017/pds.2021.52\">https://doi.org/10.1017/pds.2021.52</a>.","short":"C. Zirngibl, B. Schleich, S. Wartzack, Proceedings of the Design Society 1 (2021) 521."},"project":[{"name":"TRR 285: TRR 285","grant_number":"418701707","_id":"130"},{"_id":"132","name":"TRR 285 - B: TRR 285 - Project Area B"},{"_id":"144","name":"TRR 285 – B05: TRR 285 - Subproject B05"}],"date_created":"2022-03-29T09:12:58Z","type":"journal_article","department":[{"_id":"630"}],"year":"2021","status":"public","title":"Approach for the automated and data-based design of mechanical joints","author":[{"last_name":"Zirngibl","first_name":"C.","full_name":"Zirngibl, C."},{"last_name":"Schleich","first_name":"B.","full_name":"Schleich, B."},{"last_name":"Wartzack","first_name":"S.","full_name":"Wartzack, S."}],"date_updated":"2023-01-02T11:19:35Z","intvolume":"         1","page":"521","_id":"30696","language":[{"iso":"eng"}],"doi":"10.1017/pds.2021.52","user_id":"14931","volume":1},{"citation":{"apa":"Zirngibl, C., Dworschak, F., Schleich, B., &#38; Wartzack, S. (2021). Application of reinforcement learning for the optimization of clinch joint characteristics. <i>Production Engineering</i>. <a href=\"https://doi.org/10.1007/s11740-021-01098-4\">https://doi.org/10.1007/s11740-021-01098-4</a>","ieee":"C. Zirngibl, F. Dworschak, B. Schleich, and S. Wartzack, “Application of reinforcement learning for the optimization of clinch joint characteristics,” <i>Production Engineering</i>, 2021, doi: <a href=\"https://doi.org/10.1007/s11740-021-01098-4\">10.1007/s11740-021-01098-4</a>.","chicago":"Zirngibl, C., F. Dworschak, B. Schleich, and S. Wartzack. “Application of Reinforcement Learning for the Optimization of Clinch Joint Characteristics.” <i>Production Engineering</i>, 2021. <a href=\"https://doi.org/10.1007/s11740-021-01098-4\">https://doi.org/10.1007/s11740-021-01098-4</a>.","short":"C. Zirngibl, F. Dworschak, B. Schleich, S. Wartzack, Production Engineering (2021).","mla":"Zirngibl, C., et al. “Application of Reinforcement Learning for the Optimization of Clinch Joint Characteristics.” <i>Production Engineering</i>, 2021, doi:<a href=\"https://doi.org/10.1007/s11740-021-01098-4\">10.1007/s11740-021-01098-4</a>.","ama":"Zirngibl C, Dworschak F, Schleich B, Wartzack S. Application of reinforcement learning for the optimization of clinch joint characteristics. <i>Production Engineering</i>. Published online 2021. doi:<a href=\"https://doi.org/10.1007/s11740-021-01098-4\">10.1007/s11740-021-01098-4</a>","bibtex":"@article{Zirngibl_Dworschak_Schleich_Wartzack_2021, title={Application of reinforcement learning for the optimization of clinch joint characteristics}, DOI={<a href=\"https://doi.org/10.1007/s11740-021-01098-4\">10.1007/s11740-021-01098-4</a>}, journal={Production Engineering}, author={Zirngibl, C. and Dworschak, F. and Schleich, B. and Wartzack, S.}, year={2021} }"},"publication":"Production Engineering","project":[{"_id":"130","grant_number":"418701707","name":"TRR 285: TRR 285"},{"_id":"132","name":"TRR 285 - B: TRR 285 - Project Area B"},{"name":"TRR 285 – B05: TRR 285 - Subproject B05","_id":"144"}],"date_created":"2022-03-29T09:19:07Z","department":[{"_id":"630"}],"type":"journal_article","author":[{"full_name":"Zirngibl, C.","last_name":"Zirngibl","first_name":"C."},{"first_name":"F.","last_name":"Dworschak","full_name":"Dworschak, F."},{"first_name":"B.","last_name":"Schleich","full_name":"Schleich, B."},{"last_name":"Wartzack","first_name":"S.","full_name":"Wartzack, S."}],"status":"public","year":"2021","title":"Application of reinforcement learning for the optimization of clinch joint characteristics","date_updated":"2023-01-02T11:19:55Z","language":[{"iso":"eng"}],"_id":"30700","doi":"10.1007/s11740-021-01098-4","user_id":"14931"},{"project":[{"_id":"130","grant_number":"418701707","name":"TRR 285: TRR 285"},{"name":"TRR 285 - C: TRR 285 - Project Area C","_id":"133"},{"name":"TRR 285 – C01: TRR 285 - Subproject C01","_id":"145"}],"citation":{"short":"D. Römisch, J. Popp, D. Drummer, M. Merklein, Production Engineering (2021).","chicago":"Römisch, D., J. Popp, D. Drummer, and M. Merklein. “Joining of CFRT-Steel Hybrid Parts via Hole-Forming and Subsequent Pin Caulking.” <i>Production Engineering</i>, 2021. <a href=\"https://doi.org/10.1007/s11740-021-01093-9\">https://doi.org/10.1007/s11740-021-01093-9</a>.","ieee":"D. Römisch, J. Popp, D. Drummer, and M. Merklein, “Joining of CFRT-steel hybrid parts via hole-forming and subsequent pin caulking,” <i>Production Engineering</i>, 2021, doi: <a href=\"https://doi.org/10.1007/s11740-021-01093-9\">10.1007/s11740-021-01093-9</a>.","apa":"Römisch, D., Popp, J., Drummer, D., &#38; Merklein, M. (2021). Joining of CFRT-steel hybrid parts via hole-forming and subsequent pin caulking. <i>Production Engineering</i>. <a href=\"https://doi.org/10.1007/s11740-021-01093-9\">https://doi.org/10.1007/s11740-021-01093-9</a>","bibtex":"@article{Römisch_Popp_Drummer_Merklein_2021, title={Joining of CFRT-steel hybrid parts via hole-forming and subsequent pin caulking}, DOI={<a href=\"https://doi.org/10.1007/s11740-021-01093-9\">10.1007/s11740-021-01093-9</a>}, journal={Production Engineering}, author={Römisch, D. and Popp, J. and Drummer, D. and Merklein, M.}, year={2021} }","ama":"Römisch D, Popp J, Drummer D, Merklein M. Joining of CFRT-steel hybrid parts via hole-forming and subsequent pin caulking. <i>Production Engineering</i>. Published online 2021. doi:<a href=\"https://doi.org/10.1007/s11740-021-01093-9\">10.1007/s11740-021-01093-9</a>","mla":"Römisch, D., et al. “Joining of CFRT-Steel Hybrid Parts via Hole-Forming and Subsequent Pin Caulking.” <i>Production Engineering</i>, 2021, doi:<a href=\"https://doi.org/10.1007/s11740-021-01093-9\">10.1007/s11740-021-01093-9</a>."},"publication":"Production Engineering","department":[{"_id":"630"}],"type":"journal_article","date_created":"2022-03-29T09:21:36Z","date_updated":"2023-01-02T11:20:14Z","author":[{"full_name":"Römisch, D.","last_name":"Römisch","first_name":"D."},{"last_name":"Popp","first_name":"J.","full_name":"Popp, J."},{"first_name":"D.","last_name":"Drummer","full_name":"Drummer, D."},{"full_name":"Merklein, M.","first_name":"M.","last_name":"Merklein"}],"title":"Joining of CFRT-steel hybrid parts via hole-forming and subsequent pin caulking","year":"2021","status":"public","doi":"10.1007/s11740-021-01093-9","user_id":"14931","language":[{"iso":"eng"}],"_id":"30701"},{"author":[{"full_name":"Lafarge, R.","last_name":"Lafarge","first_name":"R."},{"last_name":"Wolf","first_name":"A.","full_name":"Wolf, A."},{"full_name":"Guilleaume, C.","last_name":"Guilleaume","first_name":"C."},{"full_name":"Brosius, A.","first_name":"A.","last_name":"Brosius"}],"year":"2021","title":"A New Non-destructive Testing Method Applied to Clinching","status":"public","date_updated":"2023-01-02T11:20:45Z","language":[{"iso":"eng"}],"_id":"30697","page":"1461","user_id":"14931","doi":"10.1007/978-3-030-75381-8_121","citation":{"short":"R. Lafarge, A. Wolf, C. Guilleaume, A. Brosius, Minerals, Metals and Materials Series (2021) 1461.","chicago":"Lafarge, R., A. Wolf, C. Guilleaume, and A. Brosius. “A New Non-Destructive Testing Method Applied to Clinching.” <i>Minerals, Metals and Materials Series</i>, 2021, 1461. <a href=\"https://doi.org/10.1007/978-3-030-75381-8_121\">https://doi.org/10.1007/978-3-030-75381-8_121</a>.","ieee":"R. Lafarge, A. Wolf, C. Guilleaume, and A. Brosius, “A New Non-destructive Testing Method Applied to Clinching,” <i>Minerals, Metals and Materials Series</i>, p. 1461, 2021, doi: <a href=\"https://doi.org/10.1007/978-3-030-75381-8_121\">10.1007/978-3-030-75381-8_121</a>.","apa":"Lafarge, R., Wolf, A., Guilleaume, C., &#38; Brosius, A. (2021). A New Non-destructive Testing Method Applied to Clinching. <i>Minerals, Metals and Materials Series</i>, 1461. <a href=\"https://doi.org/10.1007/978-3-030-75381-8_121\">https://doi.org/10.1007/978-3-030-75381-8_121</a>","bibtex":"@article{Lafarge_Wolf_Guilleaume_Brosius_2021, title={A New Non-destructive Testing Method Applied to Clinching}, DOI={<a href=\"https://doi.org/10.1007/978-3-030-75381-8_121\">10.1007/978-3-030-75381-8_121</a>}, journal={Minerals, Metals and Materials Series}, author={Lafarge, R. and Wolf, A. and Guilleaume, C. and Brosius, A.}, year={2021}, pages={1461} }","ama":"Lafarge R, Wolf A, Guilleaume C, Brosius A. A New Non-destructive Testing Method Applied to Clinching. <i>Minerals, Metals and Materials Series</i>. Published online 2021:1461. doi:<a href=\"https://doi.org/10.1007/978-3-030-75381-8_121\">10.1007/978-3-030-75381-8_121</a>","mla":"Lafarge, R., et al. “A New Non-Destructive Testing Method Applied to Clinching.” <i>Minerals, Metals and Materials Series</i>, 2021, p. 1461, doi:<a href=\"https://doi.org/10.1007/978-3-030-75381-8_121\">10.1007/978-3-030-75381-8_121</a>."},"publication":"Minerals, Metals and Materials Series","project":[{"name":"TRR 285: TRR 285","grant_number":"418701707","_id":"130"},{"name":"TRR 285 - C: TRR 285 - Project Area C","_id":"133"},{"name":"TRR 285 – C04: TRR 285 - Subproject C04","_id":"148"}],"date_created":"2022-03-29T09:14:12Z","department":[{"_id":"630"}],"type":"journal_article"},{"status":"public","title":"Experimental study on joining by forming of hct590x + z and en-aw 6014 sheets using cold extruded pin structures","year":"2021","author":[{"full_name":"Römisch, D.","first_name":"D.","last_name":"Römisch"},{"first_name":"M.","last_name":"Kraus","full_name":"Kraus, M."},{"full_name":"Merklein, M.","first_name":"M.","last_name":"Merklein"}],"date_updated":"2023-01-02T11:47:27Z","intvolume":"         5","page":"25","language":[{"iso":"eng"}],"_id":"30684","doi":"10.3390/jmmp5010025","user_id":"14931","volume":5,"publication":"Journal of Manufacturing and Materials Processing","citation":{"mla":"Römisch, D., et al. “Experimental Study on Joining by Forming of Hct590x + z and En-Aw 6014 Sheets Using Cold Extruded Pin Structures.” <i>Journal of Manufacturing and Materials Processing</i>, vol. 5, 2021, p. 25, doi:<a href=\"https://doi.org/10.3390/jmmp5010025\">10.3390/jmmp5010025</a>.","bibtex":"@article{Römisch_Kraus_Merklein_2021, title={Experimental study on joining by forming of hct590x + z and en-aw 6014 sheets using cold extruded pin structures}, volume={5}, DOI={<a href=\"https://doi.org/10.3390/jmmp5010025\">10.3390/jmmp5010025</a>}, journal={Journal of Manufacturing and Materials Processing}, author={Römisch, D. and Kraus, M. and Merklein, M.}, year={2021}, pages={25} }","ama":"Römisch D, Kraus M, Merklein M. Experimental study on joining by forming of hct590x + z and en-aw 6014 sheets using cold extruded pin structures. <i>Journal of Manufacturing and Materials Processing</i>. 2021;5:25. doi:<a href=\"https://doi.org/10.3390/jmmp5010025\">10.3390/jmmp5010025</a>","ieee":"D. Römisch, M. Kraus, and M. Merklein, “Experimental study on joining by forming of hct590x + z and en-aw 6014 sheets using cold extruded pin structures,” <i>Journal of Manufacturing and Materials Processing</i>, vol. 5, p. 25, 2021, doi: <a href=\"https://doi.org/10.3390/jmmp5010025\">10.3390/jmmp5010025</a>.","apa":"Römisch, D., Kraus, M., &#38; Merklein, M. (2021). Experimental study on joining by forming of hct590x + z and en-aw 6014 sheets using cold extruded pin structures. <i>Journal of Manufacturing and Materials Processing</i>, <i>5</i>, 25. <a href=\"https://doi.org/10.3390/jmmp5010025\">https://doi.org/10.3390/jmmp5010025</a>","short":"D. Römisch, M. Kraus, M. Merklein, Journal of Manufacturing and Materials Processing 5 (2021) 25.","chicago":"Römisch, D., M. Kraus, and M. Merklein. “Experimental Study on Joining by Forming of Hct590x + z and En-Aw 6014 Sheets Using Cold Extruded Pin Structures.” <i>Journal of Manufacturing and Materials Processing</i> 5 (2021): 25. <a href=\"https://doi.org/10.3390/jmmp5010025\">https://doi.org/10.3390/jmmp5010025</a>."},"abstract":[{"lang":"eng","text":"Due to stricter emission targets in the mobility sector and the resulting trend towards lightweight construction in order to reduce weight and consequently emissions, multi-material systems that allow a material to be placed in the right quantity and in the right place are becoming increasingly important. One major challenge that is holding back the rapid and widespread use of multi-material systems is the lack of adequate joining processes that are suitable for joining dissimilar materials. Joining processes without auxiliary elements have the advantage of a reduced assembly effort and no additional added weight. Conventional joining processes without auxiliary elements, such as welding, clinching, or the use of adhesives, reach their limits due to different mechanical properties and chemical incompatibilities. A process with potential in the field of joining dissimilar materials is joining without an auxiliary element using pin structures. However, current pin manufacturing processes are mostly time-consuming or can only be integrated barely into existing industrial manufacturing processes due to their specific properties. For this reason, the present work investigates the production of single- and multi-pin structures from high-strength dual-phase steel HCT590X + Z (DP600, t0 = 1.5 mm) by cold extrusion directly out of the sheet metal. These structures are subsequently joined with an aluminium sheet (EN AW-6014-T4, t0 = 1.5 mm) by direct pin pressing. For a quantitative evaluation of the joint quality, tensile shear tests are carried out and the influence of different pin heights, pin number, and pin arrangements, as well as different joining strategies on the joint strength is experimentally evaluated. It is proven that a single pin structure with a diameter of 1.5 mm and an average height of 1.86 mm achieves a maximum tensile shear force of 1025 N. The results reveal that the formation of a form-fit during direct pin pressing is essential for the joint strength. By increasing the number of pins, a linear increase in force could be demonstrated, which is independent of the arrangement of the pin structures."}],"project":[{"name":"TRR 285: TRR 285","grant_number":"418701707","_id":"130"},{"_id":"133","name":"TRR 285 - C: TRR 285 - Project Area C"},{"_id":"145","name":"TRR 285 – C01: TRR 285 - Subproject C01"}],"date_created":"2022-03-29T08:48:14Z","type":"journal_article","department":[{"_id":"630"}]},{"language":[{"iso":"eng"}],"_id":"30682","page":"19-26","volume":883,"user_id":"14931","doi":"10.4028/www.scientific.net/kem.883.19","author":[{"full_name":"Römisch, D.","last_name":"Römisch","first_name":"D."},{"full_name":"Kraus, M.","first_name":"M.","last_name":"Kraus"},{"last_name":"Merklein","first_name":"M.","full_name":"Merklein, M."}],"title":"Investigation of Different Joining by Forming Strategies when Connecting Different Metals without Auxiliary Elements","year":"2021","status":"public","intvolume":"       883","date_updated":"2023-01-02T11:47:47Z","date_created":"2022-03-29T08:45:16Z","department":[{"_id":"630"}],"type":"journal_article","citation":{"ieee":"D. Römisch, M. Kraus, and M. Merklein, “Investigation of Different Joining by Forming Strategies when Connecting Different Metals without Auxiliary Elements,” <i>Key Engineering Materials</i>, vol. 883, pp. 19–26, 2021, doi: <a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.19\">10.4028/www.scientific.net/kem.883.19</a>.","apa":"Römisch, D., Kraus, M., &#38; Merklein, M. (2021). Investigation of Different Joining by Forming Strategies when Connecting Different Metals without Auxiliary Elements. <i>Key Engineering Materials</i>, <i>883</i>, 19–26. <a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.19\">https://doi.org/10.4028/www.scientific.net/kem.883.19</a>","short":"D. Römisch, M. Kraus, M. Merklein, Key Engineering Materials 883 (2021) 19–26.","chicago":"Römisch, D., M. Kraus, and M. Merklein. “Investigation of Different Joining by Forming Strategies When Connecting Different Metals without Auxiliary Elements.” <i>Key Engineering Materials</i> 883 (2021): 19–26. <a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.19\">https://doi.org/10.4028/www.scientific.net/kem.883.19</a>.","mla":"Römisch, D., et al. “Investigation of Different Joining by Forming Strategies When Connecting Different Metals without Auxiliary Elements.” <i>Key Engineering Materials</i>, vol. 883, 2021, pp. 19–26, doi:<a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.19\">10.4028/www.scientific.net/kem.883.19</a>.","bibtex":"@article{Römisch_Kraus_Merklein_2021, title={Investigation of Different Joining by Forming Strategies when Connecting Different Metals without Auxiliary Elements}, volume={883}, DOI={<a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.19\">10.4028/www.scientific.net/kem.883.19</a>}, journal={Key Engineering Materials}, author={Römisch, D. and Kraus, M. and Merklein, M.}, year={2021}, pages={19–26} }","ama":"Römisch D, Kraus M, Merklein M. Investigation of Different Joining by Forming Strategies when Connecting Different Metals without Auxiliary Elements. <i>Key Engineering Materials</i>. 2021;883:19-26. doi:<a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.19\">10.4028/www.scientific.net/kem.883.19</a>"},"publication":"Key Engineering Materials","project":[{"grant_number":"418701707","_id":"130","name":"TRR 285: TRR 285"},{"_id":"133","name":"TRR 285 - C: TRR 285 - Project Area C"},{"_id":"145","name":"TRR 285 – C01: TRR 285 - Subproject C01"}],"abstract":[{"text":"Lightweight constructions become more and more important, especially in the mobility sector. In this industry, the increasingly strict regulations regarding the emissions of carbon dioxide can be achieved to a certain extent by reducing the vehicle weight. Thus, multi-material systems are used. Conventional joining techniques reach their limits when joining different materials due to different thermal expansion, unequal stiffness or chemical incompatibilities. This is why additional joining elements or adhesives are used. These must be viewed critically regarding a lightweight and resource-efficient production, since they add weight or complicate the recycling process of these components. Consequently, there is a great and growing need for new versatile joining technologies in order to overcome these challenges and to be able to react to changing process parameters and boundary conditions. Joining without an auxiliary element using pin structures formed directly from the sheet metal plane is one approach to meet these challenges. These pin structures are then joined by direct pressing into the joining partner. This is possible with a variety of material combinations, but is advantageous with regard to continuous fibre-reinforced thermoplastic composites (CFRTP), as the fibres do not have to be cut when joining CFRTP using pin structures. In this paper, the formability of pin structures made of a dual-phase steel DP600 (HCT590X + Z) is investigated. The extruded pin structures are joined by direct pin pressing with an EN AW-6014 to form tensile shear specimens. Different joining strategies are investigated to compare their influence on the joint strength. The results have shown that it is feasible to form suitable pins from a DP600 dual-phase steel to produce reliable connections with an aluminium sheet joined by direct pin pressing. ","lang":"eng"}]},{"publication":"ESAFORM 2021","citation":{"apa":"Wituschek, S., &#38; Lechner, M. (2021). Material characterisation methods for a tumbling self-piercing riveting process. <i>ESAFORM 2021</i>. <a href=\"https://doi.org/10.25518/esaform21.398\">https://doi.org/10.25518/esaform21.398</a>","ieee":"S. Wituschek and M. Lechner, “Material characterisation methods for a tumbling self-piercing riveting process,” <i>ESAFORM 2021</i>, 2021, doi: <a href=\"https://doi.org/10.25518/esaform21.398\">10.25518/esaform21.398</a>.","chicago":"Wituschek, S., and M. Lechner. “Material Characterisation Methods for a Tumbling Self-Piercing Riveting Process.” <i>ESAFORM 2021</i>, 2021. <a href=\"https://doi.org/10.25518/esaform21.398\">https://doi.org/10.25518/esaform21.398</a>.","short":"S. Wituschek, M. Lechner, ESAFORM 2021 (2021).","mla":"Wituschek, S., and M. Lechner. “Material Characterisation Methods for a Tumbling Self-Piercing Riveting Process.” <i>ESAFORM 2021</i>, 2021, doi:<a href=\"https://doi.org/10.25518/esaform21.398\">10.25518/esaform21.398</a>.","ama":"Wituschek S, Lechner M. Material characterisation methods for a tumbling self-piercing riveting process. <i>ESAFORM 2021</i>. Published online 2021. doi:<a href=\"https://doi.org/10.25518/esaform21.398\">10.25518/esaform21.398</a>","bibtex":"@article{Wituschek_Lechner_2021, title={Material characterisation methods for a tumbling self-piercing riveting process}, DOI={<a href=\"https://doi.org/10.25518/esaform21.398\">10.25518/esaform21.398</a>}, journal={ESAFORM 2021}, author={Wituschek, S. and Lechner, M.}, year={2021} }"},"abstract":[{"lang":"eng","text":"The growing demands of resource-saving processes and products are leading to increasing importance of lightweight construction for the automotive industry. One approach is multi-material design, which uses high-strength steels and aluminium alloys in the production of vehicle bodies. Therefore, reliable processes for joining components with different mechanical properties and geometries are necessary. As conventional joining processes reach their limits, new versatile processes and methods are required which can adapt to different process conditions and disturbance variables. A widely used joining process to join different materials is self-piercing riveting as a joining by forming method, however it is characterised as inflexible to changing process conditions due to a linear process kinematic and rigid dies. An approach to extend the process limits is the application of a tumbling kinematic for the punch. Thus, an adapted tumbling strategy can be used to influence the joining process and to achieve a controlled material flow in order to manufacture tailored joints. For the fundamental investigation of the process, numerical investigations are necessary. In order to achieve high model quality a precise material modelling is crucial. Therefore, a characterisation of the materials HCT590X+Z and EN AW-6014 as typical materials of multi-material mixes and the rivet material 38B2 is performed. Due to the different stress conditions during tumbling self-piercing riveting suitable characterisation methods are selected and carried out."}],"project":[{"grant_number":"418701707","_id":"130","name":"TRR 285: TRR 285"},{"name":"TRR 285 - C: TRR 285 - Project Area C","_id":"133"},{"name":"TRR 285 – C02: TRR 285 - Subproject C02","_id":"146"}],"date_created":"2022-03-29T10:34:25Z","type":"journal_article","department":[{"_id":"630"}],"year":"2021","status":"public","title":"Material characterisation methods for a tumbling self-piercing riveting process","author":[{"last_name":"Wituschek","first_name":"S.","full_name":"Wituschek, S."},{"first_name":"M.","last_name":"Lechner","full_name":"Lechner, M."}],"date_updated":"2023-01-02T11:47:03Z","_id":"30718","language":[{"iso":"eng"}],"doi":"10.25518/esaform21.398","user_id":"14931"},{"intvolume":"       883","date_updated":"2023-01-02T11:48:16Z","author":[{"full_name":"Köhler, D.","last_name":"Köhler","first_name":"D."},{"first_name":"B.","last_name":"Sadeghian","full_name":"Sadeghian, B."},{"full_name":"Kupfer, R.","last_name":"Kupfer","first_name":"R."},{"full_name":"Troschitz, J.","last_name":"Troschitz","first_name":"J."},{"last_name":"Gude","first_name":"M.","full_name":"Gude, M."},{"full_name":"Brosius, A.","last_name":"Brosius","first_name":"A."}],"status":"public","title":"A Method for Characterization of Geometric Deviations in Clinch Points with Computed Tomography and Transient Dynamic Analysis","year":"2021","volume":883,"user_id":"14931","doi":"10.4028/www.scientific.net/kem.883.89","language":[{"iso":"eng"}],"_id":"30683","page":"89-96","project":[{"_id":"130","grant_number":"418701707","name":"TRR 285: TRR 285"},{"name":"TRR 285 - C: TRR 285 - Project Area C","_id":"133"},{"_id":"148","name":"TRR 285 – C04: TRR 285 - Subproject C04"}],"abstract":[{"lang":"eng","text":"When joining lightweight parts of various materials, clinching is a cost efficient solution. In a production line, the quality of a clinch point is primarily controlled by measurement of dimensions, which are accessible from outside. However, methods such as visual testing and measuring the bottom thickness as well as the outer diameter are not able to deliver any information about the most significant geometrical characteristic of the clinch point, neck thickness and undercut. Furthermore, ex-situ destructive methods such as microsectioning cannot detect elastic deformations and cracks that close after unloading. In order to exceed the current limits, a new non-destructive in-situ testing method for the clinching process is necessary. This work proposes a concept to characterize clinch points in-situ by combining two complementary non-destructive methods, namely, computed tomography (CT) and ultrasonic testing. Firstly, clinch points with different geometrical characteristics are analysed experimentally using ex-situ CT to get a highly spatially resolved 3D-image of the object. In this context, highly X-ray attenuating materials enhancing the visibility of the sheet-sheet interface are investigated. Secondly, the test specimens are modelled using finite element method (FEM) and a transient dynamic analysis (TDA) is conducted to study the effect of the geometrical differences on the deformation energy and to qualify the TDA as a fast in-situ non-destructive method for characterizing clinch points at high temporal resolution. "}],"citation":{"short":"D. Köhler, B. Sadeghian, R. Kupfer, J. Troschitz, M. Gude, A. Brosius, Key Engineering Materials 883 (2021) 89–96.","chicago":"Köhler, D., B. Sadeghian, R. Kupfer, J. Troschitz, M. Gude, and A. Brosius. “A Method for Characterization of Geometric Deviations in Clinch Points with Computed Tomography and Transient Dynamic Analysis.” <i>Key Engineering Materials</i> 883 (2021): 89–96. <a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.89\">https://doi.org/10.4028/www.scientific.net/kem.883.89</a>.","ieee":"D. Köhler, B. Sadeghian, R. Kupfer, J. Troschitz, M. Gude, and A. Brosius, “A Method for Characterization of Geometric Deviations in Clinch Points with Computed Tomography and Transient Dynamic Analysis,” <i>Key Engineering Materials</i>, vol. 883, pp. 89–96, 2021, doi: <a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.89\">10.4028/www.scientific.net/kem.883.89</a>.","apa":"Köhler, D., Sadeghian, B., Kupfer, R., Troschitz, J., Gude, M., &#38; Brosius, A. (2021). A Method for Characterization of Geometric Deviations in Clinch Points with Computed Tomography and Transient Dynamic Analysis. <i>Key Engineering Materials</i>, <i>883</i>, 89–96. <a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.89\">https://doi.org/10.4028/www.scientific.net/kem.883.89</a>","bibtex":"@article{Köhler_Sadeghian_Kupfer_Troschitz_Gude_Brosius_2021, title={A Method for Characterization of Geometric Deviations in Clinch Points with Computed Tomography and Transient Dynamic Analysis}, volume={883}, DOI={<a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.89\">10.4028/www.scientific.net/kem.883.89</a>}, journal={Key Engineering Materials}, author={Köhler, D. and Sadeghian, B. and Kupfer, R. and Troschitz, J. and Gude, M. and Brosius, A.}, year={2021}, pages={89–96} }","ama":"Köhler D, Sadeghian B, Kupfer R, Troschitz J, Gude M, Brosius A. A Method for Characterization of Geometric Deviations in Clinch Points with Computed Tomography and Transient Dynamic Analysis. <i>Key Engineering Materials</i>. 2021;883:89-96. doi:<a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.89\">10.4028/www.scientific.net/kem.883.89</a>","mla":"Köhler, D., et al. “A Method for Characterization of Geometric Deviations in Clinch Points with Computed Tomography and Transient Dynamic Analysis.” <i>Key Engineering Materials</i>, vol. 883, 2021, pp. 89–96, doi:<a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.89\">10.4028/www.scientific.net/kem.883.89</a>."},"publication":"Key Engineering Materials","department":[{"_id":"630"}],"type":"journal_article","date_created":"2022-03-29T08:46:40Z"},{"author":[{"full_name":"Ewenz, L.","first_name":"L.","last_name":"Ewenz"},{"first_name":"J.","last_name":"Kalich","full_name":"Kalich, J."},{"full_name":"Zimmermann, M.","last_name":"Zimmermann","first_name":"M."},{"full_name":"Füssel, U.","last_name":"Füssel","first_name":"U."}],"status":"public","title":"Effect of Different Tool Geometries on the Mechanical Properties of Al-Al Clinch Joints","year":"2021","intvolume":"       883","date_updated":"2023-01-02T11:49:08Z","language":[{"iso":"eng"}],"_id":"30663","page":"65-72","volume":883,"doi":"10.4028/www.scientific.net/kem.883.65","user_id":"14931","citation":{"bibtex":"@article{Ewenz_Kalich_Zimmermann_Füssel_2021, title={Effect of Different Tool Geometries on the Mechanical Properties of Al-Al Clinch Joints}, volume={883}, DOI={<a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.65\">10.4028/www.scientific.net/kem.883.65</a>}, journal={Key Engineering Materials}, author={Ewenz, L. and Kalich, J. and Zimmermann, M. and Füssel, U.}, year={2021}, pages={65–72} }","ama":"Ewenz L, Kalich J, Zimmermann M, Füssel U. Effect of Different Tool Geometries on the Mechanical Properties of Al-Al Clinch Joints. <i>Key Engineering Materials</i>. 2021;883:65-72. doi:<a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.65\">10.4028/www.scientific.net/kem.883.65</a>","mla":"Ewenz, L., et al. “Effect of Different Tool Geometries on the Mechanical Properties of Al-Al Clinch Joints.” <i>Key Engineering Materials</i>, vol. 883, 2021, pp. 65–72, doi:<a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.65\">10.4028/www.scientific.net/kem.883.65</a>.","short":"L. Ewenz, J. Kalich, M. Zimmermann, U. Füssel, Key Engineering Materials 883 (2021) 65–72.","chicago":"Ewenz, L., J. Kalich, M. Zimmermann, and U. Füssel. “Effect of Different Tool Geometries on the Mechanical Properties of Al-Al Clinch Joints.” <i>Key Engineering Materials</i> 883 (2021): 65–72. <a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.65\">https://doi.org/10.4028/www.scientific.net/kem.883.65</a>.","ieee":"L. Ewenz, J. Kalich, M. Zimmermann, and U. Füssel, “Effect of Different Tool Geometries on the Mechanical Properties of Al-Al Clinch Joints,” <i>Key Engineering Materials</i>, vol. 883, pp. 65–72, 2021, doi: <a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.65\">10.4028/www.scientific.net/kem.883.65</a>.","apa":"Ewenz, L., Kalich, J., Zimmermann, M., &#38; Füssel, U. (2021). Effect of Different Tool Geometries on the Mechanical Properties of Al-Al Clinch Joints. <i>Key Engineering Materials</i>, <i>883</i>, 65–72. <a href=\"https://doi.org/10.4028/www.scientific.net/kem.883.65\">https://doi.org/10.4028/www.scientific.net/kem.883.65</a>"},"publication":"Key Engineering Materials","project":[{"_id":"130","grant_number":"418701707","name":"TRR 285: TRR 285"},{"_id":"132","name":"TRR 285 - B: TRR 285 - Project Area B"},{"_id":"141","name":"TRR 285 – B02: TRR 285 - Subproject B02"},{"_id":"138","name":"TRR 285 – A04: TRR 285 - Subproject A04"},{"name":"TRR 285 - A: TRR 285 - Project Area A","_id":"131"}],"abstract":[{"text":"The use of clinch joints, e.g. vehicle structures, is determined by the reliability of the joint and its strength properties - in particular the fatigue strength. Clinch connections offer the advantage over form-closure and force-closure processes that they can also be used for hybrid material combinations. In order to be able to evaluate the influence of the geometry parameters such as e.g. undercut, neck thickness or also base thickness on the fatigue behavior, three clinch connections (in optimum and compromise design) with different tool parameters were designed and examined using the example of a joining task with aluminum sheet material. For this purpose, fatigue curves (F-N curves) in the range of high to very high numbers of load cycles (N = 105 to 107) were determined. In this load cycle range, a so-called \"neck fracture\" is mainly to be expected as the type of failure, whereas for quasi-static tests, a “buckling” is more likely to occur. The tests were carried out on single-cut overlapping shear tensile specimens. Metallographic and scanning electron microscopic examinations of the joints and the fracture surfaces served to identify the crack initiation site and to clarify the respective type of failure. Significant differences in the damage behaviour of the three clinching variants could be shown. This observation enables one step into the direction of fully understanding the relationship along the causal chain \"joint requirements - joining process - fatigue strength\". Thus the adaptability of the clinching process can be improved. ","lang":"eng"}],"date_created":"2022-03-28T14:00:19Z","department":[{"_id":"630"}],"type":"journal_article"},{"type":"journal_article","department":[{"_id":"630"}],"date_created":"2022-03-29T08:52:57Z","abstract":[{"lang":"eng","text":"Thermally supported clinching (Hotclinch) is a novel promising process to join dissimilar materials. Here, metal and fibre-reinforced thermoplastics (FRTP) are used within this single step joining process and without the usage of auxiliary parts like screws or rivets. For this purpose, heat is applied to improve the formability of the reinforced thermoplastic. This enables joining of the materials using conventional clinching-tools. Focus of this work is the modelling on mesoscopic scale for the numerical simulation of this process. The FTRP-model takes the material behaviour both of matrix and the fabric reinforced organo-sheet under process temperatures into account. For describing the experimentally observed phenomena such as large deformations, fibre failure and the interactions between matrix and fibres as well as between fibres themselves, the usage of conventional, purely Lagrangian based FEM methods is limited. Therefore, the combination of contact-models with advanced modelling approaches like Arbitrary-Lagrangian-Eulerian (ALE), Coupled-Eulerian-Lagrangian (CEL) and Smooth-ParticleHydrodynamics (SPH) for the numerical simulation of the clinching process are employed. The different approaches are compared with regard to simulation feasibility, robustness and results accuracy. It is shown, that the CEL approach represents the most promising approach to describe the clinching process. "}],"project":[{"grant_number":"418701707","_id":"130","name":"TRR 285: TRR 285"},{"_id":"131","name":"TRR 285 - A: TRR 285 - Project Area A"},{"_id":"137","name":"TRR 285 – A03: TRR 285 - Subproject A03"}],"publication":"ESAFORM 2021 - 24th International Conference on Material Forming","citation":{"chicago":"Gröger, B., A. Hornig, A. Hoog, and M. Gude. “Modelling of Thermally Supported Clinching of Fibre-Reinforced Thermoplastics: Approaches on Mesoscale Considering Large Deformations and Fibre Failure.” <i>ESAFORM 2021 - 24th International Conference on Material Forming</i>, 2021. <a href=\"https://doi.org/10.25518/esaform21.4293\">https://doi.org/10.25518/esaform21.4293</a>.","short":"B. Gröger, A. Hornig, A. Hoog, M. Gude, ESAFORM 2021 - 24th International Conference on Material Forming (2021).","ieee":"B. Gröger, A. Hornig, A. Hoog, and M. Gude, “Modelling of thermally supported clinching of fibre-reinforced thermoplastics: Approaches on mesoscale considering large deformations and fibre failure,” <i>ESAFORM 2021 - 24th International Conference on Material Forming</i>, 2021, doi: <a href=\"https://doi.org/10.25518/esaform21.4293\">10.25518/esaform21.4293</a>.","apa":"Gröger, B., Hornig, A., Hoog, A., &#38; Gude, M. (2021). Modelling of thermally supported clinching of fibre-reinforced thermoplastics: Approaches on mesoscale considering large deformations and fibre failure. <i>ESAFORM 2021 - 24th International Conference on Material Forming</i>. <a href=\"https://doi.org/10.25518/esaform21.4293\">https://doi.org/10.25518/esaform21.4293</a>","bibtex":"@article{Gröger_Hornig_Hoog_Gude_2021, title={Modelling of thermally supported clinching of fibre-reinforced thermoplastics: Approaches on mesoscale considering large deformations and fibre failure}, DOI={<a href=\"https://doi.org/10.25518/esaform21.4293\">10.25518/esaform21.4293</a>}, journal={ESAFORM 2021 - 24th International Conference on Material Forming}, author={Gröger, B. and Hornig, A. and Hoog, A. and Gude, M.}, year={2021} }","ama":"Gröger B, Hornig A, Hoog A, Gude M. Modelling of thermally supported clinching of fibre-reinforced thermoplastics: Approaches on mesoscale considering large deformations and fibre failure. <i>ESAFORM 2021 - 24th International Conference on Material Forming</i>. Published online 2021. doi:<a href=\"https://doi.org/10.25518/esaform21.4293\">10.25518/esaform21.4293</a>","mla":"Gröger, B., et al. “Modelling of Thermally Supported Clinching of Fibre-Reinforced Thermoplastics: Approaches on Mesoscale Considering Large Deformations and Fibre Failure.” <i>ESAFORM 2021 - 24th International Conference on Material Forming</i>, 2021, doi:<a href=\"https://doi.org/10.25518/esaform21.4293\">10.25518/esaform21.4293</a>."},"doi":"10.25518/esaform21.4293","user_id":"14931","_id":"30688","language":[{"iso":"eng"}],"date_updated":"2023-01-02T11:50:35Z","status":"public","year":"2021","title":"Modelling of thermally supported clinching of fibre-reinforced thermoplastics: Approaches on mesoscale considering large deformations and fibre failure","author":[{"full_name":"Gröger, B.","last_name":"Gröger","first_name":"B."},{"first_name":"A.","last_name":"Hornig","full_name":"Hornig, A."},{"full_name":"Hoog, A.","first_name":"A.","last_name":"Hoog"},{"first_name":"M.","last_name":"Gude","full_name":"Gude, M."}]}]