FRP積層板の損傷シミュレーション手法の評価

抄録

Recently integral large composite structures have been applied to many structures of vehicles because of low cost and high reliability. However, as the structures are large and complicated, a fracture simulation system is required to assess the safety of inspected damages. The objective of this study is to investigate effectiveness of the 2-dimensional FEM damage simulation for FRP laminates using various FEM mesh divisions, fracture criteria and damage estimation methods compared with the expermental results. As a result, the equally divided mesh and the Tsai-Hill criterion were found to be most reliable, and a damage estimation method based on a fracture mechanism is needed to improve the results