Schmidt U, Mergheim J, Steinmann P (2015)
Publication Type: Journal article
Publication year: 2015
Publisher: Wiley-Blackwell
Book Volume: 104
Pages Range: 391–407
Journal Issue: 6
A two-scale parameter identification approach is investigated. The microscopic material parameters of a two-scale model are identified by comparing macroscopic simulation data with macroscopic full-field measurements of the micro-structured specimen. Gradient-based solution strategies are employed for the optimization problem of the two-scale parameter identification. In particular, two approaches for the gradient calculation are investigated: the finite difference method is compared with a newly introduced semi-analytical scheme. The focus lies on the identification of microscopic elastoplastic material parameters. The presented identification example with artificial data confirms a reduced computational effort and advantageous convergence for the semi-analytical approach within the two-scale parameter identification. A drawback is the increase in memory requirement.
APA:
Schmidt, U., Mergheim, J., & Steinmann, P. (2015). Identification of elastoplastic microscopic material parameters within a homogenization scheme. International Journal for Numerical Methods in Engineering, 104(6), 391–407.
MLA:
Schmidt, Ulrike, Julia Mergheim, and Paul Steinmann. "Identification of elastoplastic microscopic material parameters within a homogenization scheme." International Journal for Numerical Methods in Engineering 104.6 (2015): 391–407.
BibTeX: Download