Abstract
In this paper, we consider the optimal design of torsional beams using an arbitrary number of materials. The problem is initially ill-posed, and must be relaxed by the introduction of multimaterial composites. The optimization algorithm for multimaterial composites is described and computational results for both perturbations and asymptotical cases are presented. It is noticed that the case for three or more composites undergoes a phenomenon very much like a phase transition when certain conditions are satisfied.
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Burns, T., Cherkaev, A. Optimal distribution of multimaterial composites for torsional beams. Structural Optimization 13, 4–11 (1997). https://doi.org/10.1007/BF01198369
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DOI: https://doi.org/10.1007/BF01198369