812 Development of Multi-Scale Analysis Method for Damage Behavior of Plain-Woven Laminates with Laminate Misalignment

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  • 812 積層ずれを有する平織積層板の損傷挙動に対するマルチスケール解析手法の開発(OS8-(3),OS8 オーガナイズドセッション≪複合材料の変形と破壊およびマルチスケール計算技術≫)

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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 analysis 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.

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