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.
- 2023
- Published
Temperature-dependent mechanical behavior of aluminum AM structures generated via multi-layer friction surfacing
Kallien, Z., Roos, A., Knothe-Horstmann, C. & Klusemann, B., 26.04.2023, In: Materials Science & Engineering A. 871, 11 p., 144872.Research output: Journal contributions › Journal articles › Research
- Published
Friction extrusion processing of aluminum powders: Microstructure homogeneity and mechanical properties
Chan, C. Y. C., Rath, L., Suhuddin, U. F. H. & Klusemann, B., 19.04.2023, Material Forming: The 26th International ESAFORM Conference on Material Forming - ESAFORM 2023 - held in Kraków, Poland, April 19-21, 2023. Madej, L., Sitko, M. & Perzynski, K. (eds.). Millersville: MaterialsResearchForum LLC, Vol. 1. p. 515-522 8 p. 56. (Materials Research Proceedings; vol. 28).Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
- Published
Process characteristics of constrained friction processing of AM50 magnesium alloy
de Castro, C. C., Shen, J., Dos Santos, J. F. & Klusemann, B., 19.04.2023, Material Forming: The 26th International ESAFORM Conference on Material Forming - ESAFORM 2023 - held in Kraków, Poland, April 19-21, 2023. Madej, L., Sitko, M. & Perzynski, K. (eds.). Millersville: MaterialsResearchForum LLC, Vol. 3. p. 1739-1746 8 p. 188. (Materials Research Proceedings; vol. 28).Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
- Published
Process simulation of friction extrusion of aluminum alloys
Diyoke, G., Rath, L., Chafle, R., Ben Khalifa, N. & Klusemann, B., 19.04.2023, Material Forming: The 26th International ESAFORM Conference on Material Forming - ESAFORM 2023 - held in Kraków, Poland, April 19-21, 2023. Madej, L., Sitko, M. & Perzynski, K. (eds.). Millersville: MaterialsResearchForum LLC, Vol. 1. p. 487-494 8 p. (Materials Research Proceedings; vol. 28).Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
- Published
Analysis of a phase‐field finite element implementation for precipitation
Safi, A. R., Chafle, R. & Klusemann, B., 01.03.2023, In: PAMM. 22, 1, 6 p., e202200238.Research output: Journal contributions › Conference article in journal › Research
- Published
Anisotropy and mechanical properties of dissimilar Al additive manufactured structures generated by multi-layer friction surfacing
Rath, L., Kallien, Z., Roos, A., dos Santos, J. F. & Klusemann, B., 03.2023, In: The International Journal of Advanced Manufacturing Technology. 125, 5-6, p. 2091-2102 12 p.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Strengthening Mechanisms and Strain Hardening Behavior of 316L Stainless Steel Manufactured by Laser-Based Powder Bed Fusion
Taghipour, A., Mazaheri, Y., McDavid, J., Sheikhi, S., Braun, M., Shen, J., Klusemann, B. & Ehlers, S., 02.2023, In: Advanced Engineering Materials. 25, 4, 16 p., 2201230.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
- 2022
- 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
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