Large strain phase-field based multi-material topology optimization
Author
Summary, in English
A multi‐material topology optimization scheme is presented. The formulation includes an arbitrary number of phases with different mechanical properties. To ensure that the sum of the volume fractions is unity and in order to avoid negative phase fractions, an obstacle potential function, which introduces infinity penalty for negative densities, is utilized. The problem is formulated for nonlinear deformations, and the objective of the optimization is the end displacement. The boundary value problems associated with the optimization problem and the equilibrium equation are solved using the finite element method. To illustrate the possibilities of the method, it is applied to a simple boundary value problem where optimal designs using multiple phases are considered.
Department/s
Publishing year
2015
Language
English
Pages
887-904
Publication/Series
International Journal for Numerical Methods in Engineering
Volume
104
Issue
9
Document type
Journal article
Publisher
John Wiley & Sons Inc.
Topic
- Mechanical Engineering
Keywords
- Topology optimization
- Muliti-material
- Finite strain
Status
Published
Project
- Design of functionalized advanced polymer materials using optimisation techniques
ISBN/ISSN/Other
- ISSN: 1097-0207