Simultaneous optimization of composite shells, metallic components and their joints

This paper presents an approach for the simultaneous topology optimization of an isotropic (e.g. metallic) component, the layup optimization of a composite part and the search for the optimized position of joints between the parts. Within a gradient-based optimization, a failure criterion for the composite acts as a constraint. The constraint's gradients with respect to fiber orientations, pseudo densities of the isotropic elements, and joint positions are presented. As a demonstrative example, the load introduction into an isotropic component attached to a composite plate is analyzed. The results reveal a significant influence of the considered constraint on the optimized overall design.

Subjects

Assembly optimization

Joint optimization

Strength constraints

Topology optimization

DDC Class

620.1: Engineering Mechanics and Materials Science

Funding(s)

Simultane Topologie-, Form- und Lagenoptimierung von gefügten isotropen Bauteilen und Faserverbundlaminaten unter Berücksichtigung von Materialschädigung und Ausfallsicherheit

Projekt DEAL

Publication version

publishedVersion

Name

1-s2.0-S0263822325009614-main.pdf

Size

4.5 MB

Format

Adobe PDF

Options

Simultaneous optimization of composite shells, metallic components and their joints