複合材積層板の超高速衝突における損傷予測シミュレーション

抄録

In this study, we conduct the numerical simulations of hypervelocity impacts (HVIs) of a projectile on CFRP laminated plate targets by means of two-dimensional axisymmetric SPH method. To simulate the delamination of the laminated composite plate due to the HVIs, an interface modelling technique for mixed-mode delamination is adopted. Additionally, a treatment method for the anisotropy of CFRP composites in the axisymmetric coordinate system is described. Numerical simulation results show good agreement with experimental results in respect of the ballistic limits and the damaged area. Consequently, it is shown that the interface particle technique for modelling the delamination of a laminated composite plate is effective, and we can predict the ballistic limits and the damaged area of laminated composite plate with this technique.