板裂纹修复J积分的弹塑性分析

IF 1.9 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Advances in Materials Research-An International Journal Pub Date : 2015-06-25 DOI:10.12989/AMR.2015.4.2.087

M. Salem, B. B. Bouiadjra, B. Mechab, K. Kaddouri

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引用次数: 6

摘要

2015)抽象。本文采用三维有限元方法对复合材料补片加加劲板修补裂纹的J积分进行了分析。对于裂纹的弹性影响，给出了补片的厚度(er)和补片的性质来计算J积分。在弹塑性方面，实现了对修复裂纹和未修复裂纹尖端周围塑化单元的提取。结果表明，复合补片和加强筋的存在大大减小了裂纹前塑性区的尺寸。研究了裂纹尺寸和修补裂纹间距的影响

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Elastic-plastic analysis of the J integral for repaired cracks in plates

2015) Abstract. In this paper, three-dimensional finite element method is used to analyze the J integral for repaired cracks in plates with bonded composite patch and stiffeners. For elastic the effect of cracks, the thickness of the patch ( e r ) and properties of the patch are presented for calculating the J integral. For elastic-plastic a several calculations have been realized to extract the plasticized elements around the crack tip of repaired and un-repaired crack. The obtained results show that the presence of the composite patch and stiffener reduces considerably the size of the plastic zone ahead of the crack. The effects of crack size and the inter-distance of repaired cracks were

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来源期刊

Advances in Materials Research-An International Journal MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

3.50

自引率

27.30%

发文量