STRESS ISOLATION THROUGH TOPOLOGY OPTIMIZATION
This paper introduces a problem of stress isolation in structural design and presents an approach to the problem through topology optimization.We model the stress isolation problem as a topology optimization problem with multiple stress constraints in different regions.The shape equilibrium constraint approach is employed to effectively control the local stress constraints.The level set structural optimization is implemented with the extended finite element method (X-FEM) for providing an adequately accurate stress analysis.Numerical examples of stress isolation design in two dimensions are investigated as a benchmark test of the proposed method.The results, from the force transmittance point of view, suggest that the guard “grooves obtained can change the force path to successfully realize the stress isolation in the structure.
Stress isolation Topology optimization Shape equilibrium constraint Level set method Extended finite element method (X-FEM)
Li Li Michael Yu Wang
Department of Mechanical and Automation Engineering,The Chinese University of Hong Kong,Shatin,N.T.,Hong Kong,China
国际会议
黄山
英文
1-10
2012-06-18（万方平台首次上网日期，不代表论文的发表时间）