Professorship for materials mechanics
Organisational unit: Professoship
Organisation profile
The professorship for materials mechanics with a focus on process simulation is a shared professorship carried out in cooperation with the Helmholtz-Zentrum hereon GmbH. In particular, this is concerned with the digital modelling of technological production processes and materials, whereby considerable focus is placed on local modification processes, solid state joining processes and forming processes. The modelling approaches which are used for these range from micromechanics (e.g. crystal plasticity and phase field simulations), to continuum mechanics for describing material behaviour, to approaches for complex process simulations.
Main research areas
At the same time, one of the main focuses of the activities carried out by the professorship at the Leuphana is the development and application of mathematical models (material models) for describing microstructure development and the deformation behaviour of various metallic materials across multiple length scales. These developments often take place in close conjunction with the experimental work being carried out at the hereon. The length scale and timescale on which the relevant processes in the material take place or on which these are modelled depends on the material, the process and the component. Over the past few years, the work group has built up a vast wealth of experience when it comes to modelling many material systems such as these. In addition to carrying out intense studies on deformation processes in metallic materials, the work group has also dealt with additional material systems such as metallic glasses and polymers.
At the Helmholtz-Zentrum hereon, the professorship deals specifically with the experimental study and process modelling of solid state joining processes and manufacturing processes which act on a local level. Some named examples of these are joining processes such as friction stir welding and laser welding, as well as additive manufacturing processes such as friction welding and laser deposition welding. This is accompanied by local modification processes for the targeted adjustment of residual stresses (residual stress engineering), such as laser shock peening and hammer peening. One of the fundamental goals of these research activities is to investigate the entire system of process, microstructure and property through a combination of experimental and simulation-based approaches in order to achieve an improved physical understanding thereof. By adapting the process parameters in a targeted manner, the insights gained can be used to optimise material or structural behaviour, e.g. with regard to deformation and failure behaviour.
The professorship plays an active role in various national and international organisations such as the GAMM (International Association of Applied Mathematics and Mechanics) or the ZHM (Centre for Advanced Materials).
Key teaching focuses are in the fields of applied mechanics and material modelling, as well as in the provision of additional engineering basics.
- 2025
- Published
Friction surfacing of aluminum alloys on Ti6Al4V - Investigation of process parameters, material deposition behavior and bonding mechanisms
Hoffmann, M., Roos, A. & Klusemann, B., 01.05.2025, In: Surface and Coatings Technology. 503, 12 p., 131985.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Impact of friction stir welding-like heat cycles on precipitates in AA7050 analysed by SAXS and numerical modelling
Henninger, S., Chafle, R., Maawad, E., Klusemann, B., Müller, M. & Staron, P., 01.03.2025, In: Materialia. 39, 8 p., 102343.Research output: Journal contributions › Journal articles › Research › peer-review
- E-pub ahead of print
Improving mechanical properties of constrained friction processing Mg-Zn-Ca alloys by modifying texture using multiple pass processing
Chen, T., Fu, B., Suhuddin, U. F. H. R., Shen, T., Li, G., Maawad, E., Shen, J., Santos, J. F. D., Bergmann, J. P. & Klusemann, B., 01.03.2025, (E-pub ahead of print) In: Journal of Materials Science and Technology.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Effect of ambient conditions in friction surfacing
Hoffmann, M., Duda, E. A., Aspes, P. & Klusemann, B., 02.2025, In: Welding in the World. 69, 2, p. 397-406 10 p.Research output: Journal contributions › Journal articles › Research › peer-review
- E-pub ahead of print
Mechanical behavior, microstructural evolution and texture analysis of AA2024-T351 processed by multi-layer friction surfacing with high build rates
Hoffmann, M., Roos, A. & Klusemann, B., 29.01.2025, (E-pub ahead of print) In: Progress in Additive Manufacturing. 15 p., 146582.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Enhancement of the mechanical properties of semi-stationary bobbin tool friction stir welded joints in AA2219 through post-weld heat treatment
Rezende, G. N., Bernardi, M., Hoffmann, M., Bergmann, L., Zepon, G. & Klusemann, B., 01.01.2025, In: Materials Science and Engineering: A. 920, 11 p., 147498.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Deformation by design: data-driven approach to predict and modify deformation in thin Ti-6Al-4V sheets using laser peen forming
Sala, S. T., Bock, F. E., Pöltl, D., Klusemann, B., Huber, N. & Kashaev, N., 01.2025, In: Journal of Intelligent Manufacturing. 36, 1, p. 639-659 21 p.Research output: Journal contributions › Journal articles › Research › peer-review
- Accepted/In press
Thermal Degradation and Decomposition of FR4 Laminate PCB Substrates Joined by Friction Riveting
Rodrigues, C. F., Blaga, L. & Klusemann, B., 2025, (Accepted/In press) In: Applied Composite Materials. 15 p.Research output: Journal contributions › Journal articles › Research › peer-review
- 2024
- Published
Corrosion behavior of multi-layer friction surfaced structure from dissimilar aluminum alloys
Antunes Duda, E., Kallien, Z., da Silva Soares, S., Hernandez Schneider, T., Ribeiro Piaggio Cardoso, H., Vieira Braga Lemos, G., Falcade, T., Reguly, A. & Klusemann, B., 12.2024, In: Scientific Reports. 14, 1, 10 p., 9882.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Insight into layer formation during friction surfacing: Relationship between deposition behavior and microstructure
Hoffmann, M., Kallien, Z., Antunes Duda, E. & Klusemann, B., 12.2024, In: Materials Today Communications. 41, 13 p., 110337.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Analysis of mechanical properties and microstructure of single and double-pass friction stir welded T-joints for aluminium stiffened Panels
Wagner, D., Bernardi, M., Grassel, F., Chen, T., Schimanski, K., Bergmann, L. & Klusemann, B., 11.2024, In: Materials and Design. 247, 11 p., 113438.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Local and global mechanical properties of orbital friction stir welding on API X65 PSL2 steel / Inconel 625 clad pipes
Volff Amavisca, C., Vieira Braga Lemos, G., Dornelles Ramos, F., Bergmann, L., Reguly, A. & Klusemann, B., 10.2024, In: International Journal of Advanced Manufacturing Technology. 134, 7-8, p. 3325-3336 12 p.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Fatigue crack initiation and propagation in plain and notched PBF-LB/M, WAAM, and wrought 316L stainless steel specimens
Braun, M., Chen, T., Shen, J., Fassmer, H., Klusemann, B., Sheikhi, S., Ehlers, S., Müller, E., Sarmast, A. & Schubnell, J., 01.08.2024, In: Materials and Design. 244, 18 p., 113122.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Application of Friction Riveting technique for the assembly of electronic components on printed circuit boards (PCB)
Rodrigues, C. F., Boas, M. C. V., Blaga, L., Bartz, O. & Klusemann, B., 08.2024, In: International Journal of Advanced Manufacturing Technology. 133, 11-12, p. 5163-5173 11 p.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Feasibility study of friction stir joining of aluminium with carbon fibre reinforced thermoplastic composite
Malaske, L., Blaga, L. A., Bermann, L., Ahmad, B., Zhang, X. & Klusemann, B., 07.2024, In: Journal of Composite Materials. 58, 17, p. 1987-2003 17 p.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Ductility and fracture behavior of cold spray additive manufactured zinc
Huang, C. J., Chen, T., Fu, B. L., Zhang, Z. M., List, A., Wiehler, L., Klusemann, B., Li, W. Y., Gärtner, F. & Klassen, T., 05.06.2024, In: Additive Manufacturing. 89, 16 p., 104310.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
CALPHAD-based modeling of pressure-dependent Al, Cu and Li unary systems
Mathew, E., Chafle, R. & Klusemann, B., 01.06.2024, In: Calphad: Computer Coupling of Phase Diagrams and Thermochemistry. 85, 14 p., 102692.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Effect of thermo-mechanical conditions during constrained friction processing on the particle refinement of AM50 Mg-alloy phases
de Castro, C. C., Neves, A. M. & Klusemann, B., 06.2024, In: Journal of Magnesium and Alloys. 12, 6, p. 2298-2311 14 p.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Behavior of volumetric core defects in friction extrusion of wire from Al-Cu alloy
Rath, L., Suhuddin, U. F. H. & Klusemann, B., 15.05.2024, Material Forming, ESAFORM 2024: The 27th International ESAFORM Conference on Material Forming – ESAFORM 2024. Araujo, A. C., Cantarel, A., Chabert, F., Korycki, A., Olivier, P. & Schmidt, F. (eds.). Millersville, PA: Association of American Publishers, p. 763-770 8 p. (Materials Research Proceedings; vol. 41).Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
- Published
Dissimilar welding of aluminum to AlSi-coated steel sheets using refill friction stir spot welding: A feasibility study
Shen, T., Fu, B., Chen, T., Suhuddin, U. & Klusemann, B., 15.05.2024, Material Forming, ESAFORM 2024: The 27th International ESAFORM Conference on Material Forming – ESAFORM 2024. Araujo, A. C., Cantarel, A., Chabert, F., Korycki, A., Olivier, P. & Schmidt, F. (eds.). Millersville, PA: Association of American Publishers, p. 1705-1713 9 p. (Materials Research Proceedings; vol. 41).Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
- Published
Eigenstrain method in simulations of laser peen forming of curved surfaces
Poltl, D., Teja Sala, S., Kashaev, N. & Klusemann, B., 15.05.2024, Material Forming, ESAFORM 2024: The 27th International ESAFORM Conference on Material Forming – ESAFORM 2024. Araujo, A. C., Cantarel, A., Chabert, F., Korycki, A., Olivier, P. & Schmidt, F. (eds.). Millersville: Association of American Publishers, p. 2355-2363 9 p. (Materials Research Proceedings; vol. 41).Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
- Published
Numerical simulation of friction extrusion: process characteristics and material deformation due to friction
Diyoke, G., Rath, L., Chafle, R., Ben Khalifa, N. & Klusemann, B., 05.2024, In: International Journal of Material Forming. 17, 3, 13 p., 26.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Experimental investigation of crack propagation mechanism in refill friction stir spot joints of AA6082-T6
Becker, N., dos Santos, J. F. & Klusemann, B., 16.04.2024, In: Engineering Fracture Mechanics. 300, 11 p., 109963.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Investigation of microstructural and mechanical properties in AA2024-T351 multi-layer friction surfacing
Hoffmann, M., Roos, A. & Klusemann, B., 30.03.2024, In: Surface and Coatings Technology. 480, 11 p., 130610.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Behavior of microstructure and mechanical properties in the stir zone of friction stir welded ME21 magnesium alloy
Pasetti-Roza, A., Victoria-Hernandez, J., Costa Pereira da Cunha, P. H., de Lima Lessa, C. R., Andrei Bergmann, L., Kurz, G., Letzig, D. & Klusemann, B., 01.03.2024, In: Journal of Materials Research and Technology. 29, p. 4895-4901 7 p.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Application of friction surfacing for solid state additive manufacturing of cylindrical shell structures
Kallien, Z., Rath, L., Roos, A. & Klusemann, B., 01.02.2024, In: Additive Manufacturing Letters. 8, 8 p., 100184.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Application of novel constrained friction processing method to produce fine grained biomedical Mg-Zn-Ca alloy
Chen, T., Fu, B., Shen, J., Suhuddin, U. F. H. R., Wiese, B., Huang, Y., Wang, M., dos Santos, J. F., Bergmann, J. P. & Klusemann, B., 02.2024, In: Journal of Magnesium and Alloys. 12, 2, p. 516-529 14 p.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Effect of filler materials on the tensile properties and fracture toughness of laser beam welded AA2198 joints under different ageing conditions
Examilioti, T. N., Karanikolas, D., Riekehr, S., Al-Hamdany, N., Papanikos, P., Klusemann, B., Kashaev, N. & Alexopoulos, N. D., 23.01.2024, In: Engineering Fracture Mechanics. 295, 20 p., 109811.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Data-driven and physics-based modelling of process behaviour and deposit geometry for friction surfacing
Bock, F. E., Kallien, Z., Huber, N. & Klusemann, B., 01.01.2024, In: Computer Methods in Applied Mechanics and Engineering. 418, Part A, 26 p., 116453.Research output: Journal contributions › Journal articles › Research
- Published
Deep Rolling for Tailoring Residual Stresses of AA2024 Sheet Metals
Lehmann, J., Keller, S., Esterl, F., Kashaev, N., Klusemann, B. & Ben Khalifa, N., 2024, Proceedings of the 14th International Conference on the Technology of Plasticity - Current Trends in the Technology of Plasticity: ICTP 2023 - Volume 3. Mocellin, K., Bouchard, P.-O., Bigot, R. & Balan, T. (eds.). Cham: Springer International Publishing AG, Vol. 3. p. 352-362 11 p. (Lecture Notes in Mechanical Engineering).Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
- Published
EFFECT OF DIFFERENT RESIDUAL STRESS ENGINEERING TECHNIQUES ON THE RESIDUAL STRESS AND FATIGUE CRACK GROWTH BEHAVIOUR IN AA7075
Lehmann, J., Ventzke, V., Dorn, F., Knothe-Horstmann, C., Klusemann, B., Kashaev, N. & Ben Khalifa, N., 2024, European Conference on Fracture 2024: Book of Abstracts. Bozic, Z., Domazet, Z., Basan, R., Vrdoljak, M. & Andric, M. (eds.). Zagreb: University of Zagreb, p. 410-410 1 p.Research output: Contributions to collected editions/works › Published abstract in conference proceedings › Research
- Published
Grain Structure Evolution Ahead of the Die During Friction Extrusion of AA2024
Chan, C. Y. C., Suhuddin, U. F. H. R., Rath, L., Bachiega, F. L. & Klusemann, B., 2024, Proceedings of the 14th International Conference on the Technology of Plasticity - Current Trends in the Technology of Plasticity - ICTP 2023 - Volume 3. Mocellin, K., Bouchard, P.-O., Bigot, R. & Balan, T. (eds.). Cham: Springer Science and Business Media Deutschland GmbH, p. 422-428 7 p. (Lecture Notes in Mechanical Engineering).Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
- Published
Microstructure refinement by a novel friction-based processing on Mg-Zn-Ca alloy
Chen, T., Fu, B., Shen, J., Suhuddin, U. F. H. R., Wiese, B., Dos Santos, J. F., Bergmann, J. P. & Klusemann, B., 2024, Material Forming, ESAFORM 2024: The 27th International ESAFORM Conference on Material Forming – ESAFORM 2024. Araujo, A. C., Cantarel, A., Chabert, F., Korycki, A., Olivier, P. & Schmidt, F. (eds.). Millersville, PA : Association of American Publishers, p. 2031-2040 10 p. (Materials Research Proceedings; vol. 41).Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
- Published
Processability of Mg-Gd Powder via Friction Extrusion
Rath, L., Chan, C., Suhuddin, U., Buresch, H., Ebel, T. & Klusemann, B., 2024, Proceedings of the 14th International Conference on the Technology of Plasticity - Current Trends in the Technology of Plasticity - ICTP 2023 - Volume 1. Mocellin, K., Bouchard, P.-O., Bigot, R. & Balan, T. (eds.). Springer Science and Business Media Deutschland GmbH, p. 431-441 11 p. (Lecture Notes in Mechanical Engineering).Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
- 2023
- Published
Author Correction: Feasibility of orbital friction stir welding on clad pipes of API X65 steel and Inconel 625 (Scientific Reports, (2023), 13, 1, (10669), 10.1038/s41598-023-37913-4)
Amavisca, C. V., Bergmann, L., de, C. R., Schroeder, J. G., Ramos, F. D., Lemos, G. V. B., Reguly, A. & Klusemann, B., 12.2023, In: Scientific Reports. 13, 1, 1 p., 11959.Research output: Journal contributions › Other (editorial matter etc.) › Research
- Published
Feasibility of orbital friction stir welding on clad pipes of API X65 steel and Inconel 625
Amavisca, C. V., Bergmann, L., Lessa, C. R. D. L., Schroeder, J. G., Ramos, F. D., Lemos, G. V. B., Reguly, A. & Klusemann, B., 12.2023, In: Scientific Reports. 13, 1, 10 p., 10669.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Friction Stir Welding of Various Aluminium Alloys to Titanium
Grassel, S. F., Bergmann, L. & Klusemann, B., 29.11.2023, In: Key Engineering Materials. 966, p. 49-54 6 p.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Friction surfacing of aluminum to steel: Influence of different substrate surface topographies
Roos, A., Metternich, F., Kallien, Z., Baumann, J., Ehrich, J., Kipp, M., Hanke, S., Biermann, D. & Klusemann, B., 01.11.2023, In: Materials and Design. 235, 12 p., 112390.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Microstructure evolution and texture development during production of homogeneous fine-grained aluminum wire by friction extrusion
Suhuddin, U. F. H., Rath, L., Halak, R. M. & Klusemann, B., 01.11.2023, In: Materials Characterization. 205, 13 p., 113252.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Process parameter assessment on the dissimilar deposition of AA2024-T351 on AA7475-T761 by friction surfacing
Brandes, A. C., Roos, A., Klusemann, B., Martins, J. D. P., dos Santos, J. F. & Carvalho, A. L. M., 01.11.2023, In: Journal of Materials Research and Technology. 27, p. 7593-7605 13 p.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Refill friction stir spot welding of thermoplastic composites: Case study on Carbon-fiber-reinforced polyphenylene sulfide
Schäfer, H., Blaga, L. A., Stöver, E. & Klusemann, B., 01.10.2023, In: Thin-Walled Structures. 191, 111037.Research output: Journal contributions › Journal articles › Research
- Published
Correlation of Microstructure and Local Mechanical Properties Along Build Direction for Multi-layer Friction Surfacing of Aluminum Alloys
Kallien, Z., Hoffmann, M., Roos, A. & Klusemann, B., 10.2023, In: JOM: Journal of The Minerals, Metals & Materials Society. 75, 10, p. 4212-4222 11 p.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Microstructural development of as-cast AM50 during Constrained Friction Processing: grain refinement and influence of process parameters
de Castro, C. C., Shen, J., dos Santos, J. F. & Klusemann, B., 01.09.2023, In: Journal of Materials Processing Technology. 318, 11 p., 118018.Research output: Journal contributions › Journal articles › Research
- Published
Rapid grain refinement and compositional homogenization in a cast binary Cu50Ni alloy achieved by friction stir processing
Escobar, J., Gwalani, B., Silverstein, J., Ajantiwalay, T., Roach, C., Bergmann, L., dos Santos, J. F., Maawad, E., Klusemann, B. & Devaraj, A., 01.08.2023, In: Materials Characterization. 202, 10 p., 112999.Research output: Journal contributions › Journal articles › Research
- Published
Semi-stationary shoulder bobbin-tool: A new approach in tailoring macrostructure and mechanical properties of bobbin-tool friction stir welds in magnesium alloy
Li, G., Chen, T., Fu, B., Shen, J., Bergmann, L., Zhou, L., Chen, K., Santos, J. F. D. & Klusemann, B., 01.08.2023, In: Journal of Materials Processing Technology. 317, 117984.Research output: Journal contributions › Journal articles › Research
- Published
Fatigue behaviour of multi-spot joints of 2024-T3 aluminium sheets obtained by refill Friction Stir Spot Welding with polysulfide sealant
Bernardi, M., Suhuddin, U. F. H., Fu, B., Gerber, J. P., Bianchi, M., Ostrovsky, I., Sievers, B., Faes, K., Maawad, E., Lazzeri, L., dos Santos, J. F. & Klusemann, B., 01.07.2023, In: International Journal of Fatigue. 172, 107539.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Fatigue crack propagation in AA5083 structures additively manufactured via multi-layer friction surfacing
Kallien, Z., Knothe-Horstmann, C. & Klusemann, B., 01.07.2023, In: Additive Manufacturing Letters. 6, 7 p., 100154.Research output: Journal contributions › Comments / Debate / Reports › Research
- Published
Quasi-in-situ observation of microstructure at the friction interface: Shear deformation, dynamic recrystallization and mechanical responses during friction welding process
Jin, F., Fu, B., Shen, J., Li, J., Li, W., Santos, J. F. D. & Klusemann, B., 01.06.2023, In: Materials Characterization. 200, 112911.Research output: Journal contributions › Journal articles › Research
- Published
Friction Riveting of FR4 substrates for printed circuit boards: Influence of process parameters on process temperature development and joint properties
Rodrigues, C. F., Blaga, L. & Klusemann, B., 01.05.2023, In: Journal of Materials Research and Technology. 24, p. 4639-4649 11 p.Research output: Journal contributions › Journal articles › Research
- Published
On anisotropic tensile mechanical behavior of Al-Cu-Li AA2198 alloy under different ageing conditions
Examilioti, T. N., Li, W., Kashaev, N., Ventzke, V., Klusemann, B., Tiryakioğlu, M. & Alexopoulos, N. D., 01.05.2023, In: Journal of Materials Research and Technology. 24, p. 895-908 14 p.Research output: Journal contributions › Journal articles › Research › peer-review