マルチスケール解析を用いた短繊維強化樹脂の解析モデルの妥当性検証

抄録

There is growing interest in using discontinuous fiber reinforced thermoplastics (FRP) in the production of mass-produced automobiles. FRP is a material that combines the benefits of lightweight and easy-to-process resin with the high strength of reinforced fibers. However, the stiffness and strength of FRP can vary depending on the direction (orientation) of the fibers, which are distributed anisotropically. This can have a significant impact on the accuracy of structural analysis. While simplifying the analysis model may reduce computational costs, it can also decrease accuracy. To address this, a Verification & Validation process was used to evaluate the accuracy of finite element analysis models using multi-scale analysis, taking into account the mechanical properties of both the resin and fiber in FRP materials.