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
- Published
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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Experimentally established correlation of friction surfacing process temperature and deposit geometry
Kallien, Z., Rath, L., Roos, A. & Klusemann, B., 15.09.2020, In: Surface and Coatings Technology. 397, 7 p., 126040.Research output: Journal contributions › Journal articles › Research › peer-review
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Experimentally validated multi-step simulation strategy to predict the fatigue crack propagation rate in residual stress fields after laser shock peening
Keller, S., Horstmann, M., Kashaev, N. & Klusemann, B., 01.07.2019, In: International Journal of Fatigue. 124, p. 265-276 12 p.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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Fatigue behaviour of multi-spot joints of 2024-T3 aluminium sheets obtained by refill Friction Stir Spot Welding with polysulfide sealant
Bernardi, M., Suhuddin, U. F. H., Fu, B., Gerber, J. P., Bianchi, M., Ostrovsky, I., Sievers, B., Faes, K., Maawad, E., Lazzeri, L., dos Santos, J. F. & Klusemann, B., 01.07.2023, In: International Journal of Fatigue. 172, 107539.Research output: Journal contributions › Journal articles › Research › peer-review
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Fatigue crack initiation and propagation in plain and notched PBF-LB/M, WAAM, and wrought 316L stainless steel specimens
Braun, M., Chen, T., Shen, J., Fassmer, H., Klusemann, B., Sheikhi, S., Ehlers, S., Müller, E., Sarmast, A. & Schubnell, J., 01.08.2024, In: Materials and Design. 244, 18 p., 113122.Research output: Journal contributions › Journal articles › Research › peer-review
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Fatigue crack propagation in AA5083 structures additively manufactured via multi-layer friction surfacing
Kallien, Z., Knothe-Horstmann, C. & Klusemann, B., 01.07.2023, In: Additive Manufacturing Letters. 6, 7 p., 100154.Research output: Journal contributions › Comments / Debate / Reports › Research
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Fatigue crack propagation influenced by laser shock peening introduced residual stress fields in aluminium specimens
Keller, S., Horstmann, M., Kashaev, N. & Klusemann, B., 01.01.2020, ICAF 2019 – Structural Integrity in the Age of Additive Manufacturing: Proceedings of the 30th Symposium of the International Committee on Aeronautical Fatigue, 2019. Niepokolczycki, A. & Komorowski, J. (eds.). Cham, Schweiz: Springer, p. 617-631 15 p. (Lecture Notes in Mechanical Engineering).Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
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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/works › Article in conference proceedings › Research › peer-review
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Feasibility of orbital friction stir welding on clad pipes of API X65 steel and Inconel 625
Amavisca, C. V., Bergmann, L., Lessa, C. R. D. L., Schroeder, J. G., Ramos, F. D., Lemos, G. V. B., Reguly, A. & Klusemann, B., 12.2023, In: Scientific Reports. 13, 1, 10 p., 10669.Research output: Journal contributions › Journal articles › Research › peer-review