M&M材料力学カンファレンス
Online ISSN : 2424-2845
セッションID: OS1917
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平織擬似等方CFRP積層板の切欠き疲労に対する非相似形等寿命線図法の開発と適用性の評価
*茂田 直人河井 昌道
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Notched fatigue behavior a quasi-isotropic woven fabric CFRP laminate has been studied. Static and fatigue tests are performed on unnotched and center-hole coupon specimens for different stress ratios. The notched fatigue life of the plain woven CFRP laminates is predicted using the notched fatigue life prediction method that was developed in an earlier study. The values of fatigue life predicted using the model are compared with the fatigue lives observed in this study. The notched fatigue life of the plain woven CFRP laminates under the assumption of fatigue notch insensitivity agrees well with the experimental fatigue life observed, regardless of stress ratio, demonstrating the potential usefulness of the notched fatigue life prediction method for notched fatigue life prediction for the composite.

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