Journal article
Inverse homogenization using isogeometric shape optimization
Finding periodic microstructures with optimal elastic properties is usually tackled by a highly resolved, regular finite element model and solid isotropic material penalization. This procedure not only has many advantages, but also requires a comparably high computational effort and challenges in representing stresses accurately.
Therefore, an isogeometric shape optimization approach is applied to the inverse homogenization problem and combined with a reconstruction procedure for nearly optimal rank-3 laminates, which provides an efficient solution strategy with more accurate stress modelling. This allows to investigate the sensitivity of optimized microstructures in terms of stress concentrations.
Language: | English |
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Year: | 2020 |
Pages: | 113170 |
ISSN: | 18792138 and 00457825 |
Types: | Journal article |
DOI: | 10.1016/j.cma.2020.113170 |
ORCIDs: | Sigmund, Ole |