The Influence of Initial Structural Density Value on Results of Multi-Material Topology Optimization Problems

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We discover that the given initial structural density value has significant influence on the final result of multi-material topology optimization when adopting the SIMP interpolation scheme. The influence cannot be ignored if the grid is sparse, and there is a certain degree of periodic relationship between the structural minimum compliance and the given initial density value. By modifying the initial structural density value, a better topology optimization result with a smaller compliance can be obtained. The expression is proposed on how to modify the initial structural density value to get better results in multi-material topology optimization problems.

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Periodical:

Edited by:

Jianzhong Lin, Tianhong Yan, Xinsheng Xu and Zhengyi Jiang

Pages:

223-227

Citation:

M. T. Cui and H. F. Chen, "The Influence of Initial Structural Density Value on Results of Multi-Material Topology Optimization Problems", Applied Mechanics and Materials, Vols. 635-637, pp. 223-227, 2014

Online since:

September 2014

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$38.00

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