@inproceedings{24159, abstract = {{The online fitting of a microscopic traffic simulation model to reconstruct the current state of a real traffic area can be challenging depending on the provided data. This paper presents a novel method based on limited data from sensors positioned at specific locations and guarantees a general accordance of reality and simulation in terms of multimodal road traffic counts and vehicle speeds. In these considerations, the actual purpose of research is of particular importance. Here, the research aims at improving the traffic flow by controlling the Traffic Light Systems (TLS) of the examined area which is why the current traffic state and the route choices of individual road users are the matter of interest. An integer optimization problem is derived to fit the current simulation to the latest field measurements. The concept can be transferred to any road traffic network and results in an observation of the current multimodal traffic state matching at the given sensor position. First case studies show promosing results in terms of deviations between reality and simulation.}}, author = {{Malena, Kevin and Link, Christopher and Mertin, Sven and Gausemeier, Sandra and Trächtler, Ansgar}}, booktitle = {{VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology and Intelligent Transport Systems}}, isbn = {{978-989-758-513-5}}, keywords = {{Microscopic Traffic Simulation, Online State Estimation, Mixed Road Users, Sensor Fusion, Integer Programming, Route Choice, Vehicle2Infrastructure}}, location = {{Online Streaming}}, pages = {{386--395}}, publisher = {{SCITEPRESS}}, title = {{{Online State Estimation for Microscopic Traffic Simulations using Multiple Data Sources*}}}, volume = {{7}}, year = {{2021}}, } @misc{44234, author = {{Berger, Thilo Frederik}}, title = {{{Combining Mobility, Heterogeneity, and Leasing Approaches for Online Resource Allocation}}}, year = {{2021}}, } @misc{44233, author = {{Pranger, Sebastian}}, title = {{{Online k-Facility Reallocation using k-Server Algorithms}}}, year = {{2021}}, } @article{41508, author = {{Camberg, Alan Adam and Andreiev, Anatolii and Pramanik, Sudipta and Hoyer, Kay-Peter and Tröster, Thomas and Schaper, Mirko}}, issn = {{0921-5093}}, journal = {{Materials Science and Engineering: A}}, keywords = {{Mechanical Engineering, Mechanics of Materials, Condensed Matter Physics, General Materials Science}}, publisher = {{Elsevier BV}}, title = {{{Strength enhancement of AlMg sheet metal parts by rapid heating and subsequent cold die stamping of severely cold-rolled blanks}}}, doi = {{10.1016/j.msea.2021.142312}}, volume = {{831}}, year = {{2021}}, } @inproceedings{44256, author = {{Behler, Felix and Ines, Böker}}, booktitle = {{Sommerschule 21: Aktuelle Perspektiven der Deutsch-Türkischen und Interkulturellen Germanistik im Rahmen der Germanistischen Institutspartnerschaft 'Pader-EgeBosporus'. Organisation: Dr. Swen Schulte Eickholt, Nina Weigel (University of Paderborn), gefördert durch den DAAD.}}, location = {{Paderborn (Online) - Gastvortrag}}, title = {{{Nationale Identität, Repräsentationen und Transformationen von Held*innentum in der Literatur}}}, year = {{2021}}, } @inproceedings{44251, author = {{Behler, Felix}}, booktitle = {{ 4th Trauma and Nightmare International Interdisciplinary Conference. Organisation: Professor Wojciech Owczarski (University of Gdańsk), Professor Paulo Endo (University of São Paulo), Lidia Owczarski (InMind Support)}}, location = {{Gdansk (Online)}}, title = {{{'I wasn’t there so I can’t know, can I?’ – An Analysis of Transgenerational and Collective Trauma in Solmaz Sharif’s Look (2016)}}}, year = {{2021}}, } @inproceedings{44248, author = {{Behler, Felix}}, booktitle = {{Bridges and Barriers, Interdisziplinäre studentische Konferenz. Organisation: Felix Behler, Yvonne K. Jende, Lisa-Marie Büsken, Cecilie Rasmussen (University of Paderborn)}}, location = {{Paderborn}}, title = {{{Approaching Barriers of Representation: Speaking Trauma through Verse}}}, year = {{2021}}, } @inproceedings{44254, author = {{Behler, Felix}}, booktitle = {{Cosmopolitanism and World Citizenship International Conference. Organisation: London Centre for Interdisciplinary Research}}, location = {{London (Online)}}, title = {{{Toward New Heroism: Post-Modern Military Heroes In Between National and Cosmopolitan Telos}}}, year = {{2021}}, } @inproceedings{44255, author = {{Behler, Felix}}, booktitle = {{Barockwerkstatt 2021. Organisation: Professor Sabine Meine (Hochschule für Musik und Tanz Köln)}}, location = {{Köln - Gastvortrag}}, title = {{{The Battle for the English Landscape’ - Über die gedankliche Konzeptionierung des Englischen Landschaftsgartens}}}, year = {{2021}}, } @inproceedings{44253, author = {{Behler, Felix}}, booktitle = {{Somewhere In Between: Borders and Borderlands. Organisation: London Centre for Interdisciplinary Research}}, location = {{London (Online)}}, title = {{{Of Transgenerational Borders and Collective Trauma}}}, year = {{2021}}, } @inproceedings{44252, author = {{Behler, Felix}}, booktitle = {{Faces of War International Conference. Organisation: London Centre for Interdisciplinary Research.}}, location = {{London (Online)}}, title = {{{Representations of Trauma in Contemporary British War Poetry}}}, year = {{2021}}, } @inproceedings{44257, author = {{Behler, Felix}}, booktitle = {{BRITCULT 2021: Investigating the Super-Rich. Organisation: Professor Oliver v. Knebel Doeberitz, Dr. Jonatan Jalle Steller (University of Leipzig)}}, location = {{Leipzig (Online)}}, title = {{{In Between Cultural Heritage and ‘Playground’ for the Wealthy: The Evolution of the British Countryside}}}, year = {{2021}}, } @proceedings{44263, editor = {{Behler, Felix and Jende, Yvonne Kristin and Büsken, Lisa-Marie and Rasmussen, Cecilie}}, location = {{Paderborn}}, title = {{{Bridges and Barriers, Interdisziplinäre studentische Konferenz}}}, year = {{2021}}, } @inproceedings{22264, author = {{Göddecke, Johannes and Meschut, Gerson}}, booktitle = {{11. Doktorandenseminar Klebtechnik}}, location = {{Aachen}}, publisher = {{DVS Media GmbH}}, title = {{{Experimentelle Untersuchung der Dämpfungseigenschaften geklebter Strukturen unter dynamischer Beanspruchung}}}, year = {{2021}}, } @inbook{22930, abstract = {{Self-piercing riveting is an established technique for joining multi-material structures in car body manufacturing. Rivets for self-piercing riveting differ in their geometry, the material used, the condition of the material and their surface condition. To shorten the manufacturing process by omitting the heat treatment and the coating process, the authors have elaborated a concept for the use of stainless steel with high strain hardening as a rivet material. The focus of the present investigation is on the evaluation of the influences of the rivet’s geometry and material on its deformation behaviour. Conventional rivets of types P and HD2, a rivet with an improved geometry made of treatable steel 38B2, and rivets made of the stainless steels 1.3815 and 1.4541 are examined. The analysis is conducted by means of multi-step joining tests for two material combinations comprising high-strength steel HCT70X and aluminium EN AW-5083. The joints are cut to provide a cross-section and the deformation behaviour of the different rivets is analysed on the basis of the measured changes in geometry and hardness. In parallel, an examination of the force-stroke curves provides further insights. It can be demonstrated that, besides the geometry, the material strength, in particular, has a significant influence on the deformation behaviour of the rivet. The strength of steel 1.4541 is seen to be too low for the joining task, while the strength of steel 1.3815 is sufficient, and hence the investigation confirms the capability of rivets made of 1.3815 for joining even challenging material combinations.}}, author = {{Uhe, Benedikt and Kuball, Clara-Maria and Merklein, Marion and Meschut, Gerson}}, booktitle = {{Forming the Future - Proceedings of the 13th International Conference on the Technology of Plasticity. The Minerals, Metals & Materials Series.}}, editor = {{Daehn, Glenn and Cao, Jian and Kinsey, Brad and Tekkaya, Erman and Vivek, Anupam and Yoshida, Yoshinori}}, keywords = {{Self-piercing riveting, Lightweight design, Deformation behaviour, Stainless steel, High nitrogen steel}}, pages = {{1495--1506}}, publisher = {{Springer}}, title = {{{Self-Piercing Riveting Using Rivets Made of Stainless Steel with High Strain Hardening}}}, doi = {{10.1007/978-3-030-75381-8_124}}, year = {{2021}}, } @inproceedings{22274, abstract = {{The use of high-strength steel and aluminium is rising due to the intensified efforts being made in lightweight design, and self-piercing riveting is becoming increasingly important. Conventional rivets for self-piercing riveting differ in their geometry, the material used, the condition of the material and the coating. To shorten the manufacturing process, the use of stainless steel with high strain hardening as the rivet material represents a promising approach. This allows the coating of the rivets to be omitted due to the corrosion resistance of the material and, since the strength of the stainless steel is achieved by cold forming, heat treatment is no longer required. In addition, it is possible to adjust the local strength within the rivet. Because of that, the authors have elaborated a concept for using high nitrogen steel 1.3815 as the rivet material. The present investigation focusses on the joint strength in order to evaluate the capability of rivets in high nitrogen steel by comparison to conventional rivets made of treatable steel. Due to certain challenges in the forming process of the high nitrogen steel rivets, deviations result from the targeted rivet geometry. Mainly these deviations cause a lower joint strength with these rivets, which is, however, adequate. All in all, the capability of the new rivet is proven by the results of this investigation. }}, author = {{Uhe, Benedikt and Kuball, Clara-Maria and Merklein, Marion and Meschut, Gerson}}, keywords = {{Self-piercing Riveting, Joining Technology, Rivet Geometry, Rivet Material, High Nitrogen Steel, Joint Strength}}, location = {{Liège, Belgien}}, title = {{{Strength of self-piercing riveted Joints with conventional Rivets and Rivets made of High Nitrogen Steel}}}, doi = {{10.25518/esaform21.1911}}, year = {{2021}}, } @article{22272, abstract = {{The number of multi-material joints is increasing as a result of lightweight design. Self-piercing riveting (SPR) is an important mechanical joining technique for multi-material structures. Rivets for SPR are coated to prevent corrosion, but this coating also influences the friction that prevails during the joining process. The aim of the present investigation is to evaluate this influence. The investigation focuses on the common rivet coatings Almac® and zinc-nickel with topcoat as well as on uncoated rivet surfaces. First of all, the coating thickness and the uniformity of the coating distribution are analysed. Friction tests facilitate the classification of the surface properties. The influence of the friction on the characteristic joint parameters and the force-stroke curves is analysed by means of experimental joining tests. More in-depth knowledge of the effects that occur is achieved through the use of numerical simulation. Overall, it is shown that the surface condition of the rivet has an impact on the friction during the joining process and on the resulting joint. However, the detected deviations between different surface conditions do not restrict the operational capability of SPR and the properties of uncoated rivet surfaces, in particular, are similar to those of Almac®-coated rivets. It can thus be assumed that SPR with respect to the joining process is also possible without rivet coating in principle.}}, author = {{Uhe, Benedikt and Kuball, Clara-Maria and Merklein, Marion and Meschut, Gerson}}, journal = {{Key Engineering Materials}}, keywords = {{Coating, Friction, Joining}}, pages = {{11--18}}, title = {{{Influence of the Rivet Coating on the Friction during Self-Piercing Riveting}}}, doi = {{10.4028/www.scientific.net/KEM.883.11}}, volume = {{883}}, year = {{2021}}, } @inproceedings{30845, author = {{Kuball, Clara-Maria and Uhe, Benedikt and Meschut, Gerson and Merklein, Marion}}, location = {{Sintra, PT}}, title = {{{Selective application of different forming temperatures for individual process stages in a rivet manufacturing process with high nitrogen steel}}}, year = {{2021}}, } @article{24541, abstract = {{The mechanical properties of joined structures are determined considerably by the chosen joining technology. With the aim of providing a method that enables a faster and more profound decision-making in the spatial distribution of joining points during product development, a new method for the load path analysis of joining points is presented. For an exemplary car body, the load type in the joining elements, i.e. pure tensile, shear and combined tensile-shear loads, is determined using finite element analysis (FEA). Based on the evaluated loads, the resulting load paths in selected joining points are analyzed using a 2D FE-model of a clinching point. State of the art methods for load path analysis are dependent on the selected coordinate system or the existing stress state. Thus, a general statement about the load transmission path is not possible at this time. Here, a novel method for the analysis of load paths is used, which is independent of the alignment of the analyzed geometry. The basic assumption of the new load path analysis method was confirmed by using a simple specimen with a square hole in different orientations. The results presented here show a possibility to display the load transmission path invariantly. In further steps, the method will be extended for 3D analysis and the investigation of more complex assemblies. The primary goal of this methodical approach is an even load distribution over the joining elements and the component. This will provide a basis for future design approaches aimed at reducing the number of joining elements in joined structures.}}, author = {{Steinfelder, Christian and Martin, Sven and Brosius, Alexander and Tröster, Thomas}}, issn = {{1662-9795}}, journal = {{Key Engineering Materials}}, pages = {{73--80}}, title = {{{Load Path Transmission in Joining Elements}}}, doi = {{10.4028/www.scientific.net/kem.883.73}}, year = {{2021}}, } @article{24548, author = {{Martin, Sven and Tröster, Thomas}}, journal = {{ESAFORM 2021}}, title = {{{Joint point loadings in car bodies – the influence of manufacturing tolerances and scatter in material properties}}}, doi = {{10.25518/esaform21.3801}}, year = {{2021}}, }