@inproceedings{31243, author = {{Hami Dindar, Iman and Baumhögger, Elmar and Lutters, Nicole and Kenig, Eugeny}}, booktitle = {{Jahrestreffen der ProcessNet Fachgruppen Fluidverfahrenstechnik und Hochdruckverfahrenstechnik}}, location = {{Frankfurt am Main}}, title = {{{Wässrige Aminozuckerlösungen als neue Lösungsmittel zur CO2-Abscheidung}}}, year = {{2022}}, } @inproceedings{33887, author = {{Mamedov, Tural and Schleicher, Eckhard and Schubert, Markus and Ehlert, Thomas and Kenig, Eugeny Y. and Hampel, Uwe}}, booktitle = {{Proceedings of the 12th international conference Distillation & Absorption 2022}}, location = {{Toulouse, France }}, title = {{{Flow Morphology of TEG Desiccant in a Structured Packing Air Dehumidifier Exposed to Floating Conditions}}}, year = {{2022}}, } @inbook{34113, author = {{Haase, Michael and Zimmer, Detmar}}, booktitle = {{Innovative Product Development by Additive Manufacturing 2021}}, isbn = {{9783031059179}}, publisher = {{Springer International Publishing}}, title = {{{Systematic Investigations Concerning Eddy Currents in Additively Manufactured Structures}}}, doi = {{10.1007/978-3-031-05918-6_10}}, year = {{2022}}, } @inproceedings{44260, author = {{Behler, Felix}}, booktitle = {{ESSE Conference 2022. Seminar: British and Irish Poetry after the Turn of the Millennium: Trends, Public/Counterpublic, Institutions. Organisation: Professor David Malcomb (University of Gdansk), Wolfgang Görtschacher (University of Salzburg)}}, location = {{Mainz}}, title = {{{He’d seen it in the words of Owen and Brooke': Toward a Renaissance of Soldier Poetry in Twenty-First Century Britain}}}, year = {{2022}}, } @inproceedings{44261, author = {{Behler, Felix}}, booktitle = {{Artistic Practices of (Un-)Making Place. Organisation: Professor Mihaela Irimia (University of Bukarest), Univ. Professor Christoph Singer (University of Innsbruck), Professor Christoph Ehland (University of Paderborn)}}, location = {{Innsbruck}}, title = {{{Configuring the War-Zone: Battlefields as Markers of Glory and Catastrophe in Modern and Contemporary British Literature}}}, year = {{2022}}, } @inproceedings{44262, author = {{Behler, Felix}}, booktitle = {{BRITCULT 2022: British Identities Medialised. Organisation: Univ. Professor Dorothea Flothow, Dr. Sarah Herbe, Assoz. Professor Markus Oppolzer, Dr. Elizabeth Schober (Paris Lodron Universität Salzburg)}}, location = {{Salzburg}}, title = {{{The Iraq and Afghanistan War Memorial - A Landmark Shift in British Memory Culture}}}, year = {{2022}}, } @inproceedings{44258, author = {{Behler, Felix}}, booktitle = {{MLA Convention 2022. Session: Architectural Spaces and the Constitution of Authority in Early Modern European Literature. Organisation: Professor Katherine Brown (Albright College Pennsylvania)}}, location = {{Washington DC}}, title = {{{Inventing a New Landscape: The Literature(s) of Gardening in 18th-Century-England}}}, year = {{2022}}, } @inproceedings{44259, author = {{Behler, Felix}}, booktitle = {{Identity and Otherness in Film. Organisation: London Centre for Interdisciplinary Research}}, location = {{London (Online)}}, title = {{{Recapturing ‘Old England’ – Nostalgia, Aristo-Anglophilia, and the Transnational Impact of ITV’s ‘Downton Abbey'}}}, year = {{2022}}, } @article{30736, abstract = {{In this study, an innovative friction model is used to improve the quality of clinching process simulations. Consequently, the future over dimensioning can be reduced. Furthermore, the improved prediction quality of the joining process simulation leads to an improvement in the simulation of load-bearing capacity as well. In this way, the entire sampling process can be performed virtually without any experimental investigations. This will contribute to the advancement of lightweight construction in the automotive industry. In this work, the frictional behavior is studied in dependence on the local joining process parameters. As a reference for the numerical investigations, clinch joints by means of a die with fixed geometry are joined. Additionally, a hardness mapping is performed on the microsection of the clinch joints. It shows the local strain hardening, which correlates with the forming degree in the simulation. Based on the occurring contacts and the local joining process parameters in the joining process simulation, the test matrix for the experimental friction tests is defined. The friction tests are carried out on a compression-torsion-tribometer. This type of tribometer is able to apply high interface pressures above the initial yield stress due to the specimen encapsulation. Besides, the pure joining part contact, the contact between the joining part and joining tool can be tested as well. The experimental test setup offers the possibility to evaluate the influences of temperature, relative velocity, interface pressure, and frictional stroke independently. Based on the results of the experimental friction tests, a friction model is created. The resulting friction model is integrated into the numerical joining process simulation via a subroutine. To validate the quality of the new friction modeling, the results of simulations are compared with the experiments in terms of load-stroke diagrams, joint geometry, and hardness mappings on the microsection. }}, author = {{Rossel, Moritz Sebastian 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 = {{{Increasing the accuracy of clinching process simulations by modeling the friction as a function of local joining process parameters}}}, doi = {{10.1177/14644207221074290}}, year = {{2022}}, } @article{34654, author = {{Kusoglu, Ihsan Murat and Vieth, Pascal and Heiland, Steffen and Huber, Florian and Lüddecke, Arne and Ziefuss, Anna Rosa and Kwade, Arno and Schmidt, Michael and Schaper, Mirko and Barcikowski, Stephan and Grundmeier, Guido}}, issn = {{2212-8271}}, journal = {{Procedia CIRP}}, keywords = {{General Medicine}}, pages = {{10--13}}, publisher = {{Elsevier BV}}, title = {{{Microstructure and corrosion properties of PBF-LB produced carbide nanoparticles additivated AlSi10Mg parts}}}, doi = {{10.1016/j.procir.2022.08.046}}, volume = {{111}}, year = {{2022}}, } @article{28766, author = {{Sander, Sascha and Meschut, Gerson and Kroll, U. and Matzenmiller, A.}}, issn = {{0143-7496}}, journal = {{International Journal of Adhesion and Adhesives}}, publisher = {{Elsevier}}, title = {{{Methodology for the systematic investigation of the hygrothermal-mechanical behavior of a structural epoxy adhesive}}}, doi = {{10.1016/j.ijadhadh.2021.103072}}, year = {{2022}}, } @article{23785, abstract = {{Abstract In two-phase flows in which the Capillary number is low, errors in the computation of the surface tension force at the interface cause Front-Capturing methods such as Volume of Fluid (VOF) and Level-Set (LS) to develop interfacial spurious currents. To better solve low Capillary number flows, special treatment is required to reduce such spurious currents. Smoothing the phase indicator field to more accurately compute the curvature or adding interfacial artificial viscosity are techniques that can treat this problem. This study explores OpenFOAM, Fluent and StarCCM+ VOF solvers for the classical case of a static bubble/droplet immersed in a continuous aqueous phase, with the focus on the ability of these solvers to adequately reduce spurious currents. The results are expected to be helpful for practicing chemical engineers who use multiphase CFD solvers in their work.}}, author = {{Inguva, Venkatesh and Schulz, Andreas and Kenig, Eugeny}}, issn = {{1934-2659}}, journal = {{Chemical Product and Process Modeling}}, pages = {{121--135}}, title = {{{On methods to reduce spurious currents within VOF solver frameworks. Part 1: a review of the static bubble/droplet}}}, volume = {{17}}, year = {{2022}}, } @article{44236, author = {{Wende, Marc and Staggenborg, Christoph and Kenig, Eugeny Y.}}, issn = {{0009-2509}}, journal = {{Chemical Engineering Science}}, keywords = {{Applied Mathematics, Industrial and Manufacturing Engineering, General Chemical Engineering, General Chemistry}}, publisher = {{Elsevier BV}}, title = {{{Modelling and simulation of zero-gravity distillation units with metal foams}}}, doi = {{10.1016/j.ces.2021.117097}}, volume = {{247}}, year = {{2022}}, } @inproceedings{33479, author = {{Bothe, Mike and Lutters, Nicole and Kenig, Eugeny Y.}}, booktitle = {{Proceedings of the 12th international conference Distillation & Absorption 2022}}, location = {{Toulouse, France}}, title = {{{Model Based and Experimental Analysis of the Dynamic Reactive Absorption Loop Behavior}}}, year = {{2022}}, } @inbook{44266, author = {{Kenig, Eugeny Y.}}, booktitle = {{Process Intensification by Reactive and Membrane-assisted Separations}}, editor = {{Skiborowski, Mirko and Górak, Andrzej}}, isbn = {{9783110720464}}, publisher = {{De Gruyter}}, title = {{{Modeling Concepts for Reactive Separations}}}, doi = {{10.1515/9783110720464}}, year = {{2022}}, } @article{31496, abstract = {{Carbon fiber reinforced plastics (CFRPs) gained high interest in industrial applications because of their excellent strength and low specific weight. The stacking sequence of the unidirectional plies forming a CFRP laminate, and their thicknesses, primarily determine the mechanical performance. However, during manufacturing, defects, e.g., pores and residual stresses, are induced, both affecting the mechanical properties. The objective of the present work is to accurately measure residual stresses in CFRPs as well as to investigate the effects of stacking sequence, overall laminate thickness, and the presence of pores on the residual stress state. Residual stresses were measured through the incremental hole-drilling method (HDM). Adequate procedures have been applied to evaluate the residual stresses for orthotropic materials, including calculating the calibration coefficients through finite element analysis (FEA) based on stacking sequence, laminate thickness and mechanical properties. Using optical microscopy (OM) and computed tomography (CT), profound insights into the cross-sectional and three-dimensional microstructure, e.g., location and shape of process-induced pores, were obtained. This microstructural information allowed for a comprehensive understanding of the experimentally determined strain and stress results, particularly at the transition zone between the individual plies. The effect of pores on residual stresses was investigated by considering pores to calculate the calibration coefficients at a depth of 0.06 mm to 0.12 mm in the model and utilizing these results for residual stress evaluation. A maximum difference of 46% in stress between defect-free and porous material sample conditions was observed at a hole depth of 0.65 mm. The significance of employing correctly calculated coefficients for the residual stress evaluation is highlighted by mechanical validation tests.}}, author = {{Wu, Tao and Kruse, Roland and Tinkloh, Steffen Rainer and Tröster, Thomas and Zinn, Wolfgang and Lauhoff, Christian and Niendorf, Thomas}}, issn = {{2504-477X}}, journal = {{Journal of Composites Science}}, keywords = {{Engineering (miscellaneous), Ceramics and Composites}}, number = {{5}}, publisher = {{MDPI AG}}, title = {{{Experimental Analysis of Residual Stresses in CFRPs through Hole-Drilling Method: The Role of Stacking Sequence, Thickness, and Defects}}}, doi = {{10.3390/jcs6050138}}, volume = {{6}}, year = {{2022}}, } @article{30962, abstract = {{ Clinching as a mechanical joining process has become established in many areas of car body. In order to predict relevant properties of clinched joints and to ensure the reliability of the process, it is numerically simulated during the product development process. The prediction accuracy of the simulated process depends on the implemented friction model. Therefore, a new method for determining friction coefficients in sheet metal materials was developed and tested. The aim of this study is the numerical investigation of this experimental method by means of FE simulation. The experimental setup is modelled in a 3D numerical simulation taking into account the process parameters varying in the experiment, such as geometric properties, contact pressure and contact velocity. Furthermore, the contact description of the model is calibrated via the experimentally determined friction coefficients according to clinch-relevant parameter space. It is shown that the assumptions made in the determination of the experimental data in preliminary work are valid. In addition, it is investigated to what extent the standard Coulomb friction model in the FEM can reproduce the results of the experimental method. }}, author = {{Bielak, Christian Roman and Böhnke, Max and Bobbert, Mathias 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 = {{{Numerical investigation of a friction test to determine the friction coefficients for the clinching process}}}, doi = {{10.1177/14644207221093468}}, year = {{2022}}, } @article{32814, author = {{Wu, T. and Degener, S. and Tinkloh, Steffen Rainer and Liehr, A. and Zinn, W. and Nobre, J.P. and Tröster, Thomas and Niendorf, T.}}, issn = {{0263-8223}}, journal = {{Composite Structures}}, keywords = {{Civil and Structural Engineering, Ceramics and Composites}}, publisher = {{Elsevier BV}}, title = {{{Characterization of residual stresses in fiber metal laminate interfaces - A combined approach applying hole-drilling method and energy-dispersive X-ray diffraction}}}, doi = {{10.1016/j.compstruct.2022.116071}}, year = {{2022}}, } @inproceedings{44267, author = {{Wende, Marc and Kenig, Eugeny Y.}}, booktitle = {{Proceedings Int. Conf. „Distillation and Absorption 2022”}}, title = {{{Modeling of a hybrid process combining zero-gravity distillation and vapor permeation}}}, year = {{2022}}, } @article{29951, abstract = {{The components of a body in white consist of many individual thin-walled sheet metal parts, which usually are manufactured in deep-drawing processes. In general, the conditions in a deep-drawing process change due to changing tribology conditions, varying degrees of spring back, or scattering material properties in the sheet blanks, which affects the resulting pre-strain. Mechanical joining processes, especially clinching, are influenced by these process-related pre-strains. The final geometric shape of a clinched joint is affected to a significant level by the prior material deformation when joining with constant process parameters. That leads to a change in the stiffness and force transmission in the clinched joint due to the different geometric dimensions, such as interlock, neck thickness and bottom thickness, which directly affect the load bearing capacity. Here, the influence of the pre-straining in the deep drawing process on the force distribution in clinch points in an automotive assembly is investigated by finite-element models numerically. In further studies, the results are implemented in an optimization tool for designing clinched components. The methodology starts with a pre-straining of metal sheets. This step is followed by 2D rotationally symmetric forming simulations of the joining process. The resulting mesh of each forming simulation is rotated and 3D models are obtained. The clinched joint solid model with pre-strains is used further to determine the joint stiffnesses. With the simulation of the same test set-up with an equivalent point-connector model, the equivalent stiffness for each pre-strain combination is determined. Simulations are performed on a clinched component to assess the influence of pre-strain and sheet thinning on the clinched joint loadings by using the equivalent stiffnesses. The investigations clearly show that for the selected component, the loadings at the clinch points are dependent on the sheet thinning and the stiffnesses due to pre-strain. The magnitude of the influence varies depending on the quantity considered. For example, the shear force is more sensitive to the joint stiffness than to the sheet thinning.}}, author = {{Martin, Sven and Bielak, Christian Roman and Bobbert, Mathias and Tröster, Thomas and Meschut, Gerson}}, issn = {{0944-6524}}, journal = {{Production Engineering}}, keywords = {{Industrial and Manufacturing Engineering, Mechanical Engineering}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Numerical investigation of the clinched joint loadings considering the initial pre-strain in the joining area}}}, doi = {{10.1007/s11740-021-01103-w}}, year = {{2022}}, }