Multiscale topology optimization of pelvic bone for combined walking and running gait cycles

S. Rajaraman and Sourav Rakshit

Computer Methods in Biomechanics and Biomedical Engineering, 2024, vol. 27, issue 6, 796-812

Abstract: We propose a multiscale topology optimization procedure of pelvic bone using weighted compliance minimization. In macroscale optimization, a level set-based method is used, which gives a binary structure. In microscale optimization, cubic lattice-based homogenization is done while keeping the global geometry fixed. For the macroscale, a volume constraint equal to the volume of the pelvic bone is imposed, whereas, for the microscale, a mass constraint equal to the mass of the pelvic bone is imposed. The optimal geometries are compared with pelvic bone using different metrics and show good similarity with the same. Designed geometries are additively manufactured and experimentally tested for stiffness.

Date: 2024
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DOI: 10.1080/10255842.2023.2205541

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