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.
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Compression behaviour of wire + arc additive manufactured structures
Abbaszadeh, M., Ventzke, V., Neto, L., Riekehr, S., Martina, F., Kashaev, N., Hönnige, J., Williams, S. & Klusemann, B., 01.06.2021, In: Metals. 11, 6, 18 p., 877.Research output: Journal contributions › Journal articles › Research › peer-review
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Influence of Mg content in Al alloys on processing characteristics and dynamically recrystallized microstructure of friction surfacing deposits
Ehrich, J., Roos, A., Klusemann, B. & Hanke, S., 05.07.2021, In: Materials Science and Engineering A. 819, 141407.Research output: Journal contributions › Journal articles › Research › peer-review
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Hybrid modelling by machine learning corrections of analytical model predictions towards high-fidelity simulation solutions
Bock, F. E., Keller, S., Huber, N. & Klusemann, B., 10.04.2021, In: Materials. 14, 8, 19 p., 1883.Research output: Journal contributions › Journal articles › Research › peer-review
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Tailoring of residual stresses by specific use of defined prestress during laser shock peening
Schwab, K. C., Keller, S., Kashaev, N. & Klusemann, B., 01.09.2021, In: Journal of Materials Processing Technology. 295, 11 p., 117154.Research output: Journal contributions › Journal articles › Research › peer-review
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Phase-field modelling for fatigue crack growth under laser shock peening-induced residual stresses
Seiler, M., Keller, S., Kashaev, N., Klusemann, B. & Kästner, M., 01.08.2021, In: Archive of Applied Mechanics. 91, 8, p. 3709-3723 15 p.Research output: Journal contributions › Journal articles › Research › peer-review
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Experimental and numerical thermo-mechanical analysis of wire-based laser metal deposition of Al-Mg alloys
Bock, F. E., Herrnring, J., Froend, M., Enz, J., Kashaev, N. & Klusemann, B., 01.04.2021, In: Journal of Manufacturing Processes. 64, p. 982-995 14 p.Research output: Journal contributions › Journal articles › Research › peer-review
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Investigation of temperature evolution and flash formation at AA5083 studs during friction surfacing
Kallien, Z., Rath, L., Roos, A. & Klusemann, B., 05.01.2021, THERMEC 2021 - International Conference on Processing and Manufacturing of Advanced Materials Processing, Fabrication, Properties, Applications. Ionescu, M., Sommitsch, C., Poletti, C., Kozeschnik, E. & Chandra, T. (eds.). Trans Tech Publications Ltd, p. 660-665 6 p. (Materials Science Forum; vol. 1016 MSF).Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
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Application of stress intensity factor superposition in residual stress fields considering crack closure
Keller, S. & Klusemann, B., 15.02.2021, In: Engineering Fracture Mechanics. 243, 13 p., 107415.Research output: Journal contributions › Journal articles › Research › peer-review
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Experimental-numerical study of laser-shock-peening-induced retardation of fatigue crack propagation in Ti-17 titanium alloy
Sun, R., Keller, S., Zhu, Y., Guo, W., Kashaev, N. & Klusemann, B., 01.04.2021, In: International Journal of Fatigue. 145, 13 p., 106081.Research output: Journal contributions › Journal articles › Research › peer-review
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Characterization of dissimilar friction stir welded lap joints of AA5083 and GL D36 steel
Batistao, B. F., Bergmann, L., Gargarella, P., de Alcantara, N. G., dos Santos, J. F. & Klusemann, B., 01.11.2020, In: Journal of Materials Research and Technology. 9, 6, p. 15132-15142 11 p.Research output: Journal contributions › Journal articles › Research › peer-review