本文選題：復合材料層合曲梁　切入點：強度　出處：《玻璃鋼/復合材料》2017年03期 　論文類型：期刊論文

【摘要】：通過四點彎曲試驗和落錘沖擊試驗,研究了復合材料層合曲梁沖擊前后四點彎曲強度及其破壞模式。不僅通過超聲C掃描分析了不同內(nèi)徑復合材料層合曲梁試件沖擊后的損傷特征,而且分析了沖擊損傷對層合曲梁強度及層間最大應(yīng)力的影響;同時,通過數(shù)字散斑相關(guān)方法得到復合材料層合曲梁在四點彎曲載荷作用下的變形場以及失效模式。研究結(jié)果將為復合材料層合曲梁在飛行器結(jié)構(gòu)中的應(yīng)用提供有價值的實驗依據(jù)。
[Abstract]:Through four-point bending test and drop hammer impact test, The four point bending strength and failure mode of composite laminated curved beams before and after impact were studied. The damage characteristics of composite composite curved beams with different inner diameter after impact were analyzed by ultrasonic C scan. The effect of impact damage on the strength and maximum stress of laminated curved beams is also analyzed. The deformation field and failure mode of composite laminated curved beams under four-point bending load are obtained by digital speckle correlation method. The results will provide valuable experimental basis for the application of composite laminated curved beams in aircraft structures.
【作者單位】： 北京航空材料研究院材料檢測與評價航空科技重點實驗室航空材料檢測與評價北京市重點實驗室;
【基金】：國家自然科學基金(11502260,11672279)
【分類號】：TB332

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