Professorship for materials mechanics

Organisational unit: Section

Organisation profile

The professorship "materials mechanics“ focuses on the development of suitable models for different classes of materials based on the physical deformation mechanisms as well as on the modeling and simulation of local production processes. The development of these material models is crucial for the application of new materials, since these models are able to describe the deformation behavior in industrial production processes which allows for their optimization. In particular, local engineering in the context of production processes is of high technological relevance in adjusting local properties. For example, laser material processing and friction stir welding are relevant processes which are investigated. A targeted heat input into the material can be used to control and adjust the properties near the surface. As a result, improved properties, particularly in terms of damage tolerance can be achieved. The complexity of the interaction between the process parameters and material properties leads to high experimental effort, with sophisticated experimental techniques required to determine the influence of the process on the component. Therefore, reliable models are required to reduce the experimental effort. The developed material and process models are used to identify optimal process parameters that produce the desired properties inside the material and structure. The main objective of the professorship is to develop realistic and efficient numerical models which are formulated on basis of the underlying physical mechanisms. The identification of these mechanisms requires interdisciplinary collaborations with scientists from materials science, mechanics and production.The cooperation between the University of Lüneburg and the Helmholtz-Zentrum Geesthacht provides an ideal opportunity to accomplish the goals of this shared professorship.

Topics

modeling of microstructures

process modeling ans simulation of laser shock peening

process modeling and simulation of laser welding

modeling of metallic glasses

modeling of residual stresses

modeling of nano materials

development of homogenization approaches for heterogeneous materials

  1. Published

    Modeling precipitation kinetics for multi-phase and multi-component systems using particle size distributions via a moving grid technique

    Herrnring, J., Sundman, B., Staron, P. & Klusemann, B., 15.08.2021, In: Acta Materialia. 215, 14 p., 117053.

    Research output: Journal contributionsJournal articlesResearchpeer-review

  2. Published

    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 contributionsJournal articlesResearchpeer-review

  3. Published

    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 contributionsJournal articlesResearchpeer-review

  4. Published

    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 contributionsJournal articlesResearchpeer-review

  5. Published

    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 contributionsJournal articlesResearchpeer-review

  6. Published

    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 contributionsJournal articlesResearchpeer-review

  7. Published

    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 contributionsJournal articlesResearchpeer-review

  8. Published

    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/worksArticle in conference proceedingsResearchpeer-review

  9. Published

    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 contributionsJournal articlesResearchpeer-review

  10. Published

    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 contributionsJournal articlesResearchpeer-review

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