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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Experimental investigation of temperature distribution during wire-based laser metal deposition of the Al-Mg alloy 5087
Frönd, M., Bock, F. E., Riekehr, S., Kashaev, N., Klusemann, B. & Enz, J., 01.12.2018, In: Materials Science Forum. 941, p. 988-994 7 p.Research output: Journal contributions › Conference article in journal › Research › peer-review
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Process Development for Wire-based Laser Metal Deposition of 5087 Aluminium alloy by using Fibre Laser
Frönd, M., Riekehr, S., Kashaev, N., Klusemann, B. & Enz, J., 08.2018, In: Journal of Manufacturing Processes. 34, Part A, p. 721-732 12 p., 34.Research output: Journal contributions › Journal articles › Research › peer-review
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Microstructure and Microhardness of Wire-based Laser Metal Deposited AA5087 using an Ytterbium Fibre Laser
Frönd, M., Ventzke, V., Riekehr, S., Kashaev, N., Klusemann, B. & Enz, J., 09.2018, In: Materials Characterization. 143, p. 59-67 9 p.Research output: Journal contributions › Journal articles › Research › peer-review
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Thermal analysis of laser additive manufacturing of aluminium alloys: Experiment and simulation
Bock, F. E., Frönd, M., Herrnring, J., Enz, J., Kashaev, N. & Klusemann, B., 02.05.2018, Proceedings of the 21st International ESAFORM Conference on Material Forming, ESAFORM 2018: ESAFORM 2018. Buffa, G., Fratini, L., Ingarao, G. & Di Lorenzo, R. (eds.). American Institute of Physics Inc., 6 p. 140004. (AIP Conference Proceedings; vol. 1960, no. 1).Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
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Metallurgical aspects of joining commercially pure titanium to Ti-6Al-4V alloy in a T-joint configuration by laser beam welding
Fomin, F., Frönd, M., Ventzke, V., Alvarez, P., Bauer, S. & Kashaev, N., 01.07.2018, In: The International Journal of Advanced Manufacturing Technology. 97, 5-8, p. 2019-2031 13 p.Research output: Journal contributions › Journal articles › Research › peer-review
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Experimental and numerical investigation of residual stresses in laser shock peened AA2198
Keller, S., Chupakhin, S., Staron, P., Maawad, E., Kashaev, N. & Klusemann, B., 01.05.2018, In: Journal of Materials Processing Technology. 255, p. 294-307 14 p.Research output: Journal contributions › Journal articles › Research › peer-review
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Fully periodic RVEs for technological relevant composites: Not worth the effort!
Schneider, K., Klusemann, B. & Bargmann, S., 07.2017, In: Journal of Mechanics of Materials and Structures. 12, 4, p. 471-484 14 p.Research output: Journal contributions › Journal articles › Research › peer-review
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Application of Adaptive Element-Free Galerkin Method to Simulate Friction Stir Welding of Aluminum
Talebi, H., Froend, M. & Klusemann, B., 01.01.2017, In: Procedia Engineering. 207, p. 580-585 6 p., 137838.Research output: Journal contributions › Conference article in journal › Research › peer-review
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Anisotropy and size effect in tensile mechanical properties of Al-Cu-Li 2198 alloy
Examilioto, T., Klusemann, B., Kashaev, N., Riekehr, S., Enz, J. & Alexopoulos, N., 01.01.2017, In: Procedia Structural Integrity. 5, p. 13-18 6 p.Research output: Journal contributions › Journal articles › Research › peer-review
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Fiber laser welding of dissimilar titanium (Ti-6A1-4V/cp-Ti) T-joints and their laser forming process for aircraft application
Froend, M., Fomin, F., Riekehr, S., Alvarez, P., Zubiri, F., Bauer, S., Klusemann, B. & Kashaev, N., 01.11.2017, In: Optics and Laser Technology. 96, p. 123-131 9 p.Research output: Journal contributions › Journal articles › Research › peer-review