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>Fatigue damage of notched boron/epoxy laminates under constant amplitude loading
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Fatigue damage of notched boron/epoxy laminates under constant amplitude loading
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机译:恒定振幅载荷下带缺口的硼/环氧层压板的疲劳损伤
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摘要
Fatigue damage in (0, + or - 45) and (0, + or - 45,90) boron/epoxy laminates was studied with X-ray radiography and scanning electron microscopy. In addition, limited tests for residual strength and stiffness were performed. The results of this study suggest that in boron/epoxy laminates the 45-degree plies play a key role in the fatigue process of boron/epoxy laminates that contain them. The fatigue process in the + or - 45-degree plies starts as intralaminar matrix cracks.
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