Design of an energy-absorbing structure using topology optimization with a multimaterial model |
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Authors: | Daeyoon Jung Hae Chang Gea |
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Affiliation: | (1) Department of Mechanical and Aerospace Engineering, Rutgers University, Piscataway, NJ 08854-8058, USA |
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Abstract: | To accommodate the dual objectives of many engineering applications, one objective to minimize the mean compliance for the stiffest structure under normal service conditions and the other objective to maximize the strain energy for energy absorption during excessive loadings, topology optimization with a multimaterial model is applied to the design of an energy-absorbing structure in this paper. The effective properties of the three-phase material are derived using a spherical microinclusion model. The dual objectives are combined in a ratio formation. Numerical examples from the proposed method are presented and discussed. |
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Keywords: | Energy-absorbing structure Topology optimization Multiphase material model |
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