Topology Optimization and Digital Manufacturing of Stress-Constrained Structure Based on Level Set Method

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Abstract:

A theoretical model of stress-constrained topology optimization is established via level set method, a novel sensitivity analysis for the mean compliance with the stress constraint of the global measure of von Mises stress is derived by the material derivative. The triangle plane method and the Delaunay triangulation are explored to extract and sort the boundary point-cloud data, respectively. Digital manufacturing of optimization result is accomplished by automatically programming technique and wire electrical-discharge machining. Numerical examples of two-dimensional cantilever beam structure show the validity of the proposed method of this present work.

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4202-4205

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May 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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