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- W3005641510 abstract "In this paper, the traditional decreasing tolerance continuation solid isotropic material with penalization (CSIMP) was extended by providing a way to adapt the penalty step between subproblems, decreasing the number of subproblems solved. Four linearly elastic, volume constrained, compliance minimization problems were used to test the efficacy of the penalty adaptation for different parameter settings. Three of the problems are common 2D test problems and one is 3D. The main factors affecting the efficacy of the penalty adaptation were identified. Experimental results confirmed that the penalty adaptation successfully reduces the number of finite element analysis (FEA) simulations needed to converge to the optimal solution when using the decreasing tolerance CSIMP (Dec-Tol CSIMP), with exponentially decaying tolerance. In particular, the number of FEA simulations required by Dec-Tol CSIMP was cut down by an average of 28.8% with no more than 4.1% increase in the objective value in the worst case. Finally, a mathematical and experimental treatment of the effect of xmin on the convergence of the SIMP algorithm was given, with recommendations for choosing a suitable value for xmin." @default.
- W3005641510 created "2020-02-24" @default.
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- W3005641510 creator A5061883146 @default.
- W3005641510 date "2020-05-01" @default.
- W3005641510 modified "2023-10-17" @default.
- W3005641510 title "Adaptive continuation solid isotropic material with penalization for volume constrained compliance minimization" @default.
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- W3005641510 doi "https://doi.org/10.1016/j.cma.2020.112880" @default.
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