In this paper, the topology optimization of spot-weld layout design is performed for improving side impact performance. First, we conduct linear static analysis and nonlinear analysis about simple model to verify the process. Then the topology optimiz...
In this paper, the topology optimization of spot-weld layout design is performed for improving side impact performance. First, we conduct linear static analysis and nonlinear analysis about simple model to verify the process. Then the topology optimization is performed to find optimal spot-weld layouts. In this study, The volume fractions of spot-weld are used as design constraints, and the densities of each element in the individual design space are used as design variables. The objective function is to minimize the deformation of B-pillar. To confirm the improvement of side impact performance, optimal result of spot-weld layout design is applied in the car body and the side impact analysis is conducted. From the result of the analysis, we confirm the improvement of side impact performance. Finally, we obtained optimized spot-weld layout model.