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.

  1. Published

    Precipitation Kinetics of AA6082: An Experimental and Numerical Investigation

    Herrnring, J., Kashaev, N. & Klusemann, B., 12.2018, In: Materials Science Forum. 941, p. 1411-1417 7 p.

    Research output: Journal contributionsConference article in journalResearchpeer-review

  2. Published

    Surface modification methods for fatigue properties improvement of laser-beam-welded Ti-6Al-4V butt joints

    Fomin, F., Klusemann, B. & Kashaev, N., 31.12.2018, In: Procedia Structural Integrity. 13, p. 273-278 6 p.

    Research output: Journal contributionsConference article in journalResearchpeer-review

  3. Published

    Multiscale process simulation of residual stress fields of laser beam welded precipitation hardened AA6082

    Herrnring, J., Staron, P., Kashaev, N. & Klusemann, B., 11.2018, In: Materialia. 3, p. 243-255 13 p.

    Research output: Journal contributionsJournal articlesResearchpeer-review

  4. Published

    Correction to: Metallurgical aspects of joining commercially pure titanium to Ti-6Al-4V alloy in a T-joint configuration by laser beam welding

    Fomin, F., Froend, M., Ventzke, V., Alvarez, P., Bauer, S. & Kashaev, N., 01.10.2018, In: The International Journal of Advanced Manufacturing Technology. 99, 1-4, p. 1059-1059 1 p., 99:1059.

    Research output: Journal contributionsOther (editorial matter etc.)Research

  5. Published

    Stability of phase transformation models for Ti-6Al-4V under cyclic thermal loading imposed during laser metal deposition

    Klusemann, B. & Bambach, M., 02.05.2018, In: AIP Conference Proceedings. 1960, 1, 140012.

    Research output: Journal contributionsConference article in journalResearchpeer-review

  6. Published

    Generation of 3D representative volume elements for heterogeneous materials: A review

    Bargmann, S., Klusemann, B., Schneider, K., Soyarslan, C., Markmann, J., Schnabel, J. E. & Wilmers, J., 01.07.2018, In: Progress in Materials Science. 96, p. 322-384 63 p.

    Research output: Journal contributionsScientific review articlesResearch

  7. Published

    Finite element modeling of laser beam welding for residual stress calculation

    Herrnring, J. & Klusemann, B., 2017, In: Proceedings in applied mathematics and mechanics. 17, 1, p. 415 - 416 2 p.

    Research output: Journal contributionsConference article in journalResearchpeer-review

  8. Published

    Laser shock peening process modelling and experimental validation of AA2198-T3 and AA2198-T8

    Keller, S., Kashaev, N. & Klusemann, B., 2017, In: Proceedings in applied mathematics and mechanics. 17, 1, p. 423 - 424 2 p.

    Research output: Journal contributionsConference article in journalResearchpeer-review

  9. Published

    Fatigue Life Extension of AA2024 Specimens and Integral Structures by Laser Shock Peening

    Kashaev, N., Chupakhin, S., Ventzke, V., Horstmann, M., Riekehr, S., Barbini, A., dos Santos, J., Keller, S., Klusemann, B. & Huber, N., 25.05.2018, MATEC Web of Conferences: 12th International Fatigue Congress (FATIGUE 2018) . G, H. (ed.). EDP Sciences, Vol. 165. 6 p. 18001. (MATEC Web of Conferences; vol. 165).

    Research output: Contributions to collected editions/worksArticle in conference proceedingsResearchpeer-review

  10. Published

    Microstructure and hardness evolution of laser metal deposited AA5087 wall-structures

    Frönd, M., Ventzke, V., Riekehr, S., Kashaev, N., Klusemann, B. & Enz, J., 03.09.2018, In: Procedia CIRP. 74, p. 131-135 5 p.

    Research output: Journal contributionsConference article in journalResearchpeer-review