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
The influence of laser shock peening on fatigue properties of AA2024-T3 alloy with a fastener hole
Sikhamov, R., Fomin, F., Klusemann, B. & Kashaev, N., 09.04.2020, In: Metals. 10, 4, 13 p., 495.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
On the application of laser shock peening for retardation of surface fatigue cracks in laser beam-welded AA6056
Kashaev, N., Ushmaev, D., Ventzke, V., Klusemann, B. & Fomin, F., 01.07.2020, In: Fatigue and Fracture of Engineering Materials and Structures. 43, 7, p. 1500-1513 14 p.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Editorial: Machine Learning and Data Mining in Materials Science
Huber, N., Kalidindi, S. R., Klusemann, B. & Cyron, C. J., 28.02.2020, In: Frontiers in Materials. 7, 3 p., 51.Research output: Journal contributions › Other (editorial matter etc.) › Research
- Published
Diffusion-driven microstructure evolution in OpenCalphad
Herrnring, J., Sundman, B. & Klusemann, B., 01.04.2020, In: Computational Materials Science. 175, 10 p., 109236.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
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
- Published
Microstructure by design: An approach of grain refinement and isotropy improvement in multi-layer wire-based laser metal deposition
Froend, M., Ventzke, V., Dorn, F., Kashaev, N., Klusemann, B. & Enz, J., 20.01.2020, In: Materials Science and Engineering A. 772, 13 p., 138635.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Crack closure mechanisms in residual stress fields generated by laser shock peening: A combined experimental-numerical approach
Keller, S., Horstmann, M., Kashaev, N. & Klusemann, B., 01.11.2019, In: Engineering Fracture Mechanics. 221, 15 p., 106630.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Two-step simulation approach for laser shock peening
Pozdnyakov, V., Keller, S., Kashaev, N., Klusemann, B. & Oberrath, J., 11.2019, In: Proceedings in applied mathematics and mechanics. 19, 1, 2 p., e201900497.Research output: Journal contributions › Conference article in journal › Research › peer-review
- Published
Numerical Investigation of the Effect of Rolling on the Localized Stress and Strain Induction for Wire + Arc Additive Manufactured Structures
Abbaszadeh, M., Hönnige, J. R., Martina, F., Neto, L., Kashaev, N., Colegrove, P., Williams, S. & Klusemann, B., 15.08.2019, In: Journal of Materials Engineering and Performance. 28, 8, p. 4931-4942 12 p.Research output: Journal contributions › Journal articles › Research › peer-review
- Published
Thermal analysis of wire-based direct energy deposition of Al-Mg using different laser irradiances
Froend, M., Ventzke, V., Kashaev, N., Klusemann, B. & Enz, J., 01.10.2019, In: Additive Manufacturing. 29, UNSP 100800.Research output: Journal contributions › Journal articles › Research › peer-review