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.
- 2026
- Published
Three-dimensional mapping of residual stresses and crack propagation in refill friction stir spot welded aluminium samples via synchrotron X-ray diffraction and X-ray micro-computed tomography
Bernardi, M., Canelo-Yubero, D., Chen, T., Suhuddin, U. F. H., Bergmann, L. & Klusemann, B., 01.2026, In: International Journal of Fatigue. 202, 11 p., 109223.Research output: Journal contributions › Journal articles › Research › peer-review
- 2025
- Published
Additive friction stir deposition vs. friction surfacing: Comparison of friction stir-based approaches for groove repair of high strength aluminum alloys
Kallien, Z., Rojas, V. A., Aspes, P., Swinney, A. N., Fleck, T. J., Jordon, J. B., Allison, P. G. & Klusemann, B., 10.2025, In: Materials and Design. 258, 14 p., 114511.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
A multi-component phase-field model for T1 precipitates in Al-Cu-Li alloys
Reza Safi, A., Mathew, E., Chafle, R. & Klusemann, B., 15.09.2025, In: Modelling and Simulation in Materials Science and Engineering. 33, 6, 32 p., 065009.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
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., 09.2025, In: Progress in Additive Manufacturing. 10, 9, p. 6279-6293 15 p., 146582.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
On the Application of Laser Shock Peening as a Manufacturing and Repair Process to Improve the Fatigue Performance of Refill Friction Stir Spot-Welded AA2024-T3 Joints
Kashaev, N., Mohr, T., Keller, S., Hasan Suhuddin, U. F., Klusemann, B., Dorn, F. & Ventzke, V., 07.07.2025, In: Fatigue of Aircraft Structures. 2024, 16, p. 29-44 16 p.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Combining fusion-based and solid-state additive manufacturing: Investigation of additive DED structures with friction surfacing interlayer
Kallien, Z., Eimer, E., Roos, A., Ortolland, V., Rath, L., Williams, S. & Klusemann, B., 07.2025, In: Additive Manufacturing Letters. 14, 12 p., 100302.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Effect of consumable stud microstructure on friction surfacing: Comparison between friction extruded and hot extruded AA2024 studs
Aspes, P., Kallien, Z., Rath, L., Suhuddin, U. & Klusemann, B., 07.2025, In: Journal of Materials Processing Technology. 341, 14 p., 118862.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Hybrid joining of cast aluminum and sheet steel using refill friction stir spot welding with strength enhancement via adhesive application
Shen, T., Piccoli, R., Hendler, L., Barbosa, A., Chen, T., Suhuddin, U., Cucco, M. & Klusemann, B., 07.2025, 28th International ESAFORM Conference on Material Forming, ESAFORM 2025. Carlone, P., Filice, L. & Umbrello, D. (eds.). Association of American Publishers, p. 1469-1478 10 p. (Materials Research Proceedings; vol. 54).Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
- Published
Generative 3D reconstruction of Ti-6Al-4V basketweave microstructures by optimization of differentiable microstructural descriptors
Blümer, V., Safi, A. R., Soyarslan, C., Klusemann, B. & van den Boogaard, T., 01.06.2025, In: Acta Materialia. 291, 10 p., 120947.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Friction stir lap weld-brazing of AA7050 aluminium alloy to Ti6Al4V titanium alloy – Limitations in dissimilar metal joining
Grassel, F. & Klusemann, B., 06.2025, In: Manufacturing Letters. 44, p. 37-41 5 p.Research output: Journal contributions › Journal articles › Research › peer-review