@article{36332,
  abstract     = {{AlSi casting alloys combine excellent castability with high strength. Hence, this group of alloys is often used in the automotive sector. The challenge for this application is the brittle character of these alloys which leads to cracks during joint formation when mechanical joining technologies are used. A rise in ductility can be achieved by a considerable increase in the solidification rate which results in grain refinement. High solidification rates can be realized in twin–roll casting (TRC) by water-cooled rolls. Therefore, a hypoeutectic EN AC–AlSi9 (for European Norm - aluminum cast product) is manufactured by the TRC process and analyzed. Subsequently, joining investigations are performed on castings in as-cast and heat-treated condition using the self-piercing riveting process considering the joint formation and the load-bearing capacity. Due to the fine microstructure, the crack initiation can be avoided during joining, while maintaining the joining parameters, especially by specimens in heat treatment conditions. Furthermore, due to the extremely fine microstructure, the load-bearing capacity of the joint can be significantly increased in terms of the maximum load-bearing force and the energy absorbed.}},
  author       = {{Neuser, Moritz and Kappe, Fabian and Ostermeier, Jakob and Krüger, Jan Tobias and Bobbert, Mathias and Meschut, Gerson and Schaper, Mirko and Grydin, Olexandr}},
  issn         = {{1438-1656}},
  journal      = {{Advanced Engineering Materials}},
  keywords     = {{Condensed Matter Physics, General Materials Science}},
  number       = {{10}},
  publisher    = {{Wiley}},
  title        = {{{Mechanical Properties and Joinability of AlSi9 Alloy Manufactured by Twin‐Roll Casting}}},
  doi          = {{10.1002/adem.202200874}},
  volume       = {{24}},
  year         = {{2022}},
}

@article{29724,
  abstract     = {{<jats:p> In many manufacturing areas, multi-material designs are implemented in which individual components are joined together to form complex structures with numerous joints. For example, in the automotive sector, cast components are used at the junctions of the body and joined with different types of sheet metal and extruded profiles. To be able to join structures consisting of different materials, alternative joining technologies have emerged in recent years. This includes clinching, which allows assembling of two or more thin sheet metal and casting parts by solely cold forming the material. Clinching the brittle and usually less ductile cast aluminium alloys remains a challenge because the brittle character of the cast aluminium alloys can cause cracks during the forming of the clinched joint. In this study, the influence of the heat treatment time of an aluminium casting alloy AlSi9 on the joinability in the clinching process is investigated. Specific heat treatment of the naturally hard AlSi9 leads to a modification of the eutectic microstructure, which can increase ductility. Based on this, it will be examined if specific clinching die geometries can be used, which achieve an optimized geometrical formation of the clinched joint. The load-bearing capacities of the clinched joints are determined and compared by shear tensile and head tensile tests. Furthermore, the joints are examined microscopically to investigate the influence of the heat treatment on the failure behaviour during the load-bearing tests as well as crack initiation within the joining process. </jats:p>}},
  author       = {{Neuser, Moritz and Böhnke, Max and Grydin, Olexandr and Bobbert, Mathias and Schaper, Mirko and Meschut, Gerson}},
  issn         = {{1464-4207}},
  journal      = {{Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications}},
  keywords     = {{Mechanical Engineering, General Materials Science}},
  publisher    = {{SAGE Publications}},
  title        = {{{Influence of heat treatment on the suitability for clinching of the aluminium casting alloy AlSi9}}},
  doi          = {{10.1177/14644207221075838}},
  year         = {{2022}},
}

@article{31828,
  author       = {{Kupfer, Robert and Köhler, Daniel and Römisch, David and Wituschek, Simon and Ewenz, Lars and Kalich, Jan and Weiß, Deborah and Sadeghian, Behdad and Busch, Matthias and Krüger, Jan and Neuser, Moritz and Grydin, Olexandr and Böhnke, Max and Bielak, Christian Roman and Troschitz, Juliane}},
  issn         = {{2666-3309}},
  journal      = {{Journal of Advanced Joining Processes}},
  keywords     = {{Mechanical Engineering, Mechanics of Materials, Engineering (miscellaneous), Chemical Engineering (miscellaneous)}},
  publisher    = {{Elsevier BV}},
  title        = {{{Clinching of Aluminum Materials – Methods for the Continuous Characterization of Process, Microstructure and Properties}}},
  doi          = {{10.1016/j.jajp.2022.100108}},
  volume       = {{5}},
  year         = {{2022}},
}

@article{52613,
  abstract     = {{<jats:p>During resistance spot welding of zinc-coated advanced high-strength steels (AHSSs) for automotive production, liquid metal embrittlement (LME) cracking may occur in the event of a combination of various unfavorable influences. In this study, the interactions of different welding current levels and weld times on the tendency for LME cracking in third-generation AHSSs were investigated. LME manifested itself as high-penetration cracks around the circumference of the spot welds for welding currents closely below the expulsion limit. At the same time, the observed tendency for LME cracking showed no direct correlation with the overall heat input of the investigated welding processes. To identify a reliable indicator of the tendency for LME cracking, the local strain rate at the origin of the observed cracks was analyzed over the course of the welding process via finite element simulation. While the local strain rate showed a good correlation with the process-specific LME cracking tendency, it was difficult to interpret due to its discontinuous course. Therefore, based on the experimental measurement of electrode displacement during welding, electrode indentation velocity was proposed as a descriptive indicator for quantifying cracking tendency.</jats:p>}},
  author       = {{Böhne, Christoph and Meschut, Gerson and BIEGLER, MAX and RETHMEIER, MICHAEL}},
  issn         = {{0043-2296}},
  journal      = {{Welding Journal}},
  keywords     = {{Metals and Alloys, Mechanical Engineering, Mechanics of Materials}},
  number       = {{7}},
  pages        = {{197--207}},
  publisher    = {{American Welding Society}},
  title        = {{{The Influence of Electrode Indentation Rate on LME Formation during RSW}}},
  doi          = {{10.29391/2022.101.015}},
  volume       = {{101}},
  year         = {{2022}},
}

@article{52615,
  author       = {{Böhne, Christoph and Meschut, Gerson}},
  journal      = {{Welding and Cutting}},
  pages        = {{208--212}},
  title        = {{{Reduction of flange widths in resistance spot welding by application of eccentric electrode cap geometries}}},
  doi          = {{10.53192/WAC202203208 }},
  volume       = {{3}},
  year         = {{2022}},
}

@article{32283,
  author       = {{Schmolke, Tobias and Meschut, Gerson and Rieker, Florian and Meinderink, Dennis and Grundmeier, Guido}},
  journal      = {{adhäsion KLEBEN & DICHTEN }},
  pages        = {{40--43}},
  publisher    = {{Springer Nature}},
  title        = {{{Untersuchung von Klebverbindungen für Batteriegehäuse}}},
  doi          = {{https://doi.org/10.1007/s35145-022-0596-9}},
  volume       = {{66}},
  year         = {{2022}},
}

@inproceedings{52687,
  author       = {{Bähr, Philipp and Striewe, Marius and Meschut, Gerson and Sommer, Silke}},
  booktitle    = {{12. Kolloquium: Gemeinsame Forschung in der Mechanischen Fügetechnik}},
  title        = {{{Ersatzmodellentwicklung zur Berücksichtigung der lokalen Fügeelementkinematik in mechanisch gefügten Verbindungen für die Bauteilauslegung im stahlintensiven Karosseriebau}}},
  year         = {{2022}},
}

@article{31330,
  abstract     = {{<jats:p> Owing to the implementation of multi-material construction methods in modern lightweight construction and the associated use of adhesive bonding technology, thermally induced relative displacements of the joining partners occur during the curing process. The resulting extremely complex thermo-chemo-mechanical stresses can influence the properties of the adhesive layers and reduce the load-bearing capacity. In this study, experiments are conducted to examine the influence of process-related thermal relative displacements on the mechanical properties of adhesives. The results show an anisotropy of the mechanical properties of the pre-deformed adhesive layers, depending on the magnitude and direction of the relative displacement. </jats:p>}},
  author       = {{Beule, Felix and Teutenberg, Dominik and Meschut, Gerson}},
  issn         = {{0954-4070}},
  journal      = {{Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering}},
  keywords     = {{Mechanical Engineering, Aerospace Engineering}},
  publisher    = {{SAGE Publications}},
  title        = {{{Directional dependence of the mechanical properties of structural adhesive joints with curing-induced pre-deformations}}},
  doi          = {{10.1177/09544070221100130}},
  year         = {{2022}},
}

@article{33002,
  abstract     = {{<jats:p>Many mechanical material properties show a dependence on the strain rate, e.g. yield stress or elongation at fracture. The quantitative description of the material behavior under dynamic loading is of major importance for the evaluation of crash safety. This is carried out using numerical methods and requires characteristic values for the materials used. For the standardized determination of dynamic characteristic values in sheet metal materials, tensile tests performed according to the guideline from [1]. A particular challenge in dynamic tensile tests is the force measurement during the test. For this purpose, strain gauges are attached on each specimen, wired to the measuring equipment and calibrated. This is a common way to determine a force signal that is as low in vibration and as free of bending moments as possible. The preparation effort for the used strain gauges are enormous. For these reasons, an optical method to determine the force by strain measurement using DIC is presented. The experiments are carried out on a high speed tensile testing system. In combioantion with a 3D DIC high speed system for optical strain measurement. The elastic deformation of the specimen in the dynamometric section is measured using strain gauges and the optical method. The measured signals are then compared to validate the presented method. The investigations are conducted using the dual phase steel material HCT590X and the aluminum material EN AW-6014 T4. Strain rates of up to 240 s-1 are investigated.</jats:p>}},
  author       = {{Böhnke, Max and Unruh, Eduard and Sell, Stanislaw and Bobbert, Mathias and Hein, David and Meschut, Gerson}},
  issn         = {{1662-9795}},
  journal      = {{Key Engineering Materials}},
  keywords     = {{Mechanical Engineering, Mechanics of Materials, General Materials Science}},
  location     = {{Braga, Portugal}},
  pages        = {{1564--1572}},
  publisher    = {{Trans Tech Publications, Ltd.}},
  title        = {{{Functionality Study of an Optical Measurement Concept for Local Force Signal Determination in High Strain Rate Tensile Tests}}},
  doi          = {{10.4028/p-wpuzyw}},
  volume       = {{926}},
  year         = {{2022}},
}

@inbook{33003,
  author       = {{Böhnke, Max and Bielak, Christian Roman and Bobbert, Mathias and Meschut, Gerson}},
  booktitle    = {{The Minerals, Metals &amp; Materials Series}},
  isbn         = {{9783031062117}},
  issn         = {{2367-1181}},
  location     = {{Toronto, Kanada}},
  publisher    = {{Springer International Publishing}},
  title        = {{{Development of a Modified Punch Test for Investigating the Failure Behavior in Sheet Metal Materials}}},
  doi          = {{10.1007/978-3-031-06212-4_52}},
  year         = {{2022}},
}

@article{34572,
  author       = {{Böhnke, Max and Bielak, Christian Roman and Bobbert, Mathias and Meschut, Gerson}},
  journal      = {{Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications}},
  publisher    = {{SAGE Journals}},
  title        = {{{Experimental and numerical investigation of the influence of multiaxial loading conditions on the failure behavior of clinched joints}}},
  doi          = {{10.1177/14644207221145886}},
  year         = {{2022}},
}

@article{34459,
  author       = {{Schmelzle, Lars and Striewe, Marius and Mergheim, Julia and Meschut, Gerson and Possart, Gunnar and Teutenberg, Dominik and Hein, David and Steinmann, Paul}},
  issn         = {{0169-4243}},
  journal      = {{Journal of Adhesion Science and Technology}},
  keywords     = {{Materials Chemistry, Surfaces, Coatings and Films, Surfaces and Interfaces, Mechanics of Materials, General Chemistry}},
  title        = {{{Testing, modelling, and parameter identification for adhesively bonded joints under the influence of temperature}}},
  doi          = {{10.1080/01694243.2022.2125714}},
  year         = {{2022}},
}

@inproceedings{20446,
  author       = {{Neumann, Stefan and Meschut, Gerson and Schmatz, Frederik and Flügge, Wilko}},
  title        = {{{Robotergestütztes manuelles mechanisches Fügen – RoboterFügen}}},
  year         = {{2022}},
}

@inproceedings{29853,
  author       = {{Tews, Karina and Aubel, Tobias and Teutenberg, Dominik and Meschut, Gerson and Duffe, Tobias and Kullmer, Gunter}},
  booktitle    = {{22. Kolloquium: Gemeinsame Forschung in der Klebtechnik}},
  title        = {{{Methodenentwicklung zur numerischen Lebensdauerprognose von hyperelastischen Klebverbindungen infolge zyklischer Beanspruchung mittels bruchmechanischer Ansätze }}},
  year         = {{2022}},
}

@article{32392,
  author       = {{Duffe, Tobias and Kullmer, Gunter and Tews, Karina and Aubel, Tobias and Meschut, Gerson}},
  journal      = {{Theoretical and Applied Fracture Mechanics}},
  title        = {{{Global energy release rate of small penny-shaped cracks in hyperelastic materials under general stress conditions}}},
  doi          = {{10.1016/j.tafmec.2022.103461}},
  year         = {{2022}},
}

@inproceedings{33088,
  author       = {{Duffe, Tobias and Tews, Karina and Kullmer, Gunter and Meschut, Gerson}},
  booktitle    = {{ECF23, European Conference on Fracture 2022}},
  title        = {{{Fracture mechanical concept to predict crack nucleation in elastic adhesive joints}}},
  year         = {{2022}},
}

@article{33495,
  author       = {{Duffe, Tobias and Tews, Karina and Aubel, Tobias and Meschut, Gerson and Kullmer, Gunter}},
  journal      = {{Fachzeitschrift für Schweißen und verwandte Verfahren}},
  number       = {{9}},
  pages        = {{570--576}},
  publisher    = {{DVS}},
  title        = {{{Numerische Lebensdauerprognose von hyperelastischen Klebverbindungen mit einem bruchmechanischen Ansatz}}},
  volume       = {{74}},
  year         = {{2022}},
}

@inproceedings{30153,
  author       = {{Schmolke, Tobias and Teutenberg, Dominik and Meschut, Gerson and Meinderink, Dennis and Golebiowska, Sandra and Rieker, Florian and Ebbert, Christoph and Grundmeier, Guido}},
  location     = {{Online}},
  title        = {{{Entwicklung einer Methode zur Bewertung einer stahlintensiven Mischbau-Klebverbindung eines Batteriegehäuses gegenüber mechanischer und medialer Belastung unter Berücksichtigung der Interphasenstruktur}}},
  year         = {{2022}},
}

@phdthesis{42762,
  author       = {{Meyer, Sebastian}},
  isbn         = {{978-3-8440-8415-3}},
  title        = {{{Umformtechnisches Fügen von Stanzmuttern während des Formhärtens von 22MnB5}}},
  year         = {{2022}},
}

@article{43158,
  abstract     = {{In view of economic and ecological trends, the concepts for lightweight construction in transport systems are becoming increasingly important. These are frequently applied in the form of multi-material systems, which are characterized by the selective use of materials and geometries. One major challenge in the manufacturing of multi-material systems is the joining of the individual components to form a complete system. Mechanical joining processes such as semi-tubular self-piercing riveting are frequently used for this application but reach their limits concerning the number of combinations of geometry and material. In order to react to the requirements and to increase the versatility of semi-tubular self-pierce riveting, a process combination consisting of a tumbling process and a self-pierce riveting process has been presented previously. This process combination is used in this work to investigate the versatility and to identify the influencing parameters on it. For this purpose, experiments are conducted to identify process-side influence possibilities. The tests are performed with a dual-phase steel aluminum alloy to represent the varying mechanical characteristics of multi-material systems. Furthermore, the initial sheet thicknesses of the joining partners are varied in several steps. In addition to the geometric joint formation used to describe the undercut, the rivet head end position and the residual sheet thickness, the joining process, is also analyzed during the investigations. Further, the innovative joining process is evaluated by comparing it with a conventional self-piercing riveting process. The knowledge obtained represents a basis for the identification and evaluation of the versatility of the process combination.}},
  author       = {{Wituschek, Simon and Kappe, Fabian and Meschut, Gerson and Lechner, Michael}},
  issn         = {{1464-4207}},
  journal      = {{Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications}},
  keywords     = {{Mechanical Engineering, General Materials Science}},
  publisher    = {{SAGE Publications}},
  title        = {{{Geometric and mechanical joint characterization of conventionally  and tumbled self-piercing riveting joints}}},
  doi          = {{10.1177/14644207221135400}},
  year         = {{2022}},
}