Abstract
In the automotive industry, weight reduction of car body is demanded for improvement of fuel consumption, and multi-materialization, that is, placing materials such as iron, aluminum and resin in the right place is progressing. Therefore, the tool for implementing concept creation and verification concerning multi-material body quickly in consideration of traits of each materials is demanded. As an effective method, there is optimization of frame structure with ground structure method that enables simultaneous optimization of topology and property using beam element. However, there is currently no way that enables to design material layouts at the same time. Therefore, the objective of this research is to construct systems that enables simultaneous multi-objective optimization of material layouts in addition to topology and property based on the method. This time, basic algorithm was constructed in static rigidity analysis.
