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基于渐进损伤理论的复合材料开孔拉伸失效分析

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Indexed by:期刊论文

Date of Publication:2018-09-29

Journal:航空材料学报

Volume:38

Issue:5

Page Number:138-146

ISSN No.:1005-5053

Key Words:碳纤维复合材料;渐进损伤;刚度折减;失效分析

Abstract:为研究碳纤维复合材料在受载情况下损伤的萌生、扩展及材料失效行为,采用三维Hashin失效准则预测材料的初始失效,基于渐进损伤理论提出了一种用于材料损伤后的刚度折减方案.利用编写的UMAT用户子程序对碳纤维复合材料板开孔拉伸进行数值分析,并将数值计算结果与碳纤维复合材料板开孔拉伸实验结果进行对比分析,结果表明数值分析对极限载荷的预测和失效过程的预测结果与实验结果吻合较好.

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