In this study we apply a modified optimality criteria method to density-based topology optimization analysis in static problems. The modified optimality criteria method was developed based on Newton's method and the optimality criteria method. Unlike the optimality criteria method, the modified optimality criteria method does not require the setting of weighting factors. We show the results of the respective density distributions obtained by the optimality criteria method and the modified optimality criteria method for a cantilever beam model. Finally, using the optimization of an automotive part, we demonstrate the industrial applicability of the modified optimality criteria method.

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In this study, numerical studies for a maximally stiff structure based on the topology optimization theory and the FEM are carried out, and the result of several practical tensile tests for the optimized structure was shown. The specimens for tensile testing were made using 3D printer. The numerical studies included filtering radius based examination. The thickness of the optimized model was also investigated, assuming the displacement of the optimized model to be the same as that of the initial model.

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