OS1106-355 積層ずれを有する平織積層板のマルチスケール損傷進展シミュレーション

Abstract

In this study, damage development of plain-woven laminates with laminate misalignment is analyzed using a homogenization theory. For this, a homogenization theory for plain-woven laminates with laminate misalignment is described. Hoffman's low is then introduced into the theory as a criterion for fracture of fiber bundles and a matrix material. The present method is applied to the damage development simulation of plain-woven GFRP laminates under on-axis tensile load in the weft direction. Fourteen cases of laminate misalignment including in-phase and out-of-phase are considered in the analysis. It is shown that the stress levels at initiation of damages and tensile strength quite vary depending on the laminate misalignment.