Non-Destructive Evaluation of Damage Around Circular Holes in Bolted Composite Laminates

机译：螺栓复合层压板圆孔周围损坏的非破坏性评估

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One of the more formidable problems in composite research is the study of delamination and other failure modes in the vicinity of a circular hole in a laminate, e.g., a circular cut-out in a structure. In this problem, the singularity varies around the periphery of the hole as well as through the thickness of the laminate. Under tensile loading, the early failure modes in this problem consist of transverse cracks in various layers, so that delamination occurs only after other damage is precipitated, followed by fiber breakage leading to failure.

机译：复合研究中更强大的问题之一是研究层压材料中圆孔附近的分层和其他故障模式的研究，例如，在结构中的圆形切口。在这个问题中，奇点围绕孔的周边而变化以及层压板的厚度。在拉伸载荷下，该问题中的早期失效模式包括各层的横裂，因此仅在沉淀其他损伤后仅发生分层，然后导致失败的纤维破裂。

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《ASME International Mechanical Engineering Congress and Exposition》|2006年||共2页
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G. P. Tandon; R. Y. Kim;
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Non-Destructive Evaluation of Damage Around Circular Holes in Bolted Composite Laminates

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