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.
- Published
Effect of Temperature and Strain Rate on Formability of Titanium Alloy KS1.2ASN
Sikhamov, R., Ventzke, V., Dorn, F., Klusemann, B., Khalifa, N. B. & Kashaev, N., 22.07.2022, Achievements and Trends in Material Forming: Peer-reviewed extended papers selected from the 25 th International Conference on Material Forming (ESAFORM 2022). Vincze, G. & Barlat, F. (eds.). Baech: Trans Tech Publications Ltd, p. 939-946 8 p. (Key Engineering Materials; vol. 926).Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
- Published
Experimental Investigation of Efficiency and Deposit Process Temperature During Multi-Layer Friction Surfacing
Kallien, Z., Roos, A. & Klusemann, B., 22.07.2022, Achievements and Trends in Material Forming: Peer-reviewed extended papers selected from the 25 th International Conference on Material Forming (ESAFORM 2022). Vincze, G. & Barlat, F. (eds.). Baech: Trans Tech Publications Ltd, p. 187-193 7 p. (Key Engineering Materials; vol. 926).Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
- Published
Comparison of Friction Extrusion Processing from Bulk and Chips of Aluminum-Copper Alloys
Rath, L., Suhuddin, U. F. H. & Klusemann, B., 22.07.2022, Achievements and Trends in Material Forming: Peer-reviewed extended papers selected from the 25 th International Conference on Material Forming (ESAFORM 2022). Vincze, G. & Barlat, F. (eds.). Baech: Trans Tech Publications Ltd, p. 471-480 10 p. (Key Engineering Materials; vol. 926).Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
- Published
Influence of laser shock peening on the residual stresses in additively manufactured 316L by Laser Powder Bed Fusion: A combined experimental-numerical study
Sandmann, P., Keller, S., Kashaev, N., Ghouse, S., Hooper, P. A., Klusemann, B. & Davies, C. M., 01.12.2022, In: Additive Manufacturing. 60, Part A, 14 p., 103204.Research output: Journal contributions › Journal articles › Research
- Published
Experimental and numerical investigation of laser beam-welded Al-Cu-Li joints using micro-mechanical characteristics
Examilioti, T. N., Papanikos, P., Kashaev, N., Klusemann, B. & Alexopoulos, N. D., 01.07.2022, In: Journal of Materials Research and Technology. 19, p. 2431-2446 16 p.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Heterogenous activation of dynamic recrystallization and twinning during friction stir processing of a Cu-4Nb alloy
Escobar, J., Gwalani, B., Olszta, M., Silverstein, J., Ajantiwalay, T., Overman, N., Fu, W., Li, Y., Bergmann, L., Maawad, E., Klusemann, B., Santos, J. F. D. & Devaraj, A., 20.12.2022, In: Journal of Alloys and Compounds. 928, 9 p., 167007.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Modeling of temperature- and strain-driven intermetallic compound evolution in an Al-Mg system via a multiphase-field approach with application to refill friction stir spot welding
Raza, S. H., Mittnacht, T., Diyoke, G., Schneider, D., Nestler, B. & Klusemann, B., 01.12.2022, In: Journal of the Mechanics and Physics of Solids. 169, 105059.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Effect of Welding Speed on Friction Stir Welds of PM2000 Alloy
Wang, J., Fu, B., Bergmann, L., Liu, F. & Klusemann, B., 01.2023, In: Journal of Materials Engineering and Performance. 32, 2, p. 577-586 10 p.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Tool wear mechanisms and effects on refill friction stir spot welding of AA2198-T8 sheets
Castro, C. C. D., Shen, J., Plaine, A. H., Suhuddin, U. F. H., Alcântara, N. G. D., Santos, J. F. D. & Klusemann, B., 01.09.2022, In: Journal of Materials Research and Technology. 20, p. 857-866 10 p.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Effect of rotational speed and double-sided welding in friction stir–welded dissimilar joints of aluminum alloy and steel
Bergmann, L. A., Batistão, B. F., de Alcântara, N. G., Gargarella, P. & Klusemann, B., 01.09.2022, In: Welding in the World. 66, 9, p. 1747-1756 10 p.Research output: Journal contributions › Journal articles › Research › peer-review