FE2-Simulation of Microheterogeneous Steels Based on Statistically Similar RVEs
- 683 Downloads
A main problem of direct homogenization methods is the high computational cost, when we have to deal with large random microstructures. This leads to a large number of history variables which needs a large amount of memory, and moreover a high computation time. We focus on random microstructures consisting of a continuous matrix phase with a high number of embedded inclusions. In this contribution a method is presented for the construction of statistically similar representative volume elements (SSRVEs) which are characterized by a much less complexity than usual random RVEs in order to obtain an efficient simulation tool. The basic idea of the underlying procedure is to find a simplified SSRVE, whose selected statistical measures under consideration are as close as possible to the ones of the original microstructure.
KeywordsSpectral Density Representative Volume Element Target Structure Inclusion Phase Real Microstructure
Unable to display preview. Download preview PDF.
- 6.E. Parzen, Stochastic Processes. Holden-Day, San Francisco, CA, 1992.Google Scholar
- 8.J. Schröder, Homogenisierungsmethoden der nichtlinearen Kontinuumsmechanik unter Beachtung von Stabilitätsproblemen, Habilitationsschrift, Institut für Mechanik (Bauwesen), Lehrstuhl I, Universität Stuttgart, 2000.Google Scholar
- 9.J. Schröder, D. Balzani, H. Richter, H.P. Schmitz and L. Kessler, Simulation of microheterogeneous steels based on a discrete multiscale approach, in Proceedings of the 7th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes, P. Hora (Ed.), 2008, pp. 379–383.Google Scholar