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Computation of the stress intensity factors for repaired cracks with bonded composite patch in model I and mixed model

机译：模型I和混合模型中复合粘结片修复裂纹应力强度因子的计算。

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摘要

In this study, the finite element method is used to analyse the behaviour of repaired cracks with bounded composite patches in mode I and mixed mode by computing the stress intensity factors at the crack tip. The effects of the patch size and the adhesive properties on the stress intensity factors variation were highlighted. The plot of the stress intensity factors according to the crack length in mode I, shows that the stress intensity factor exhibits an asymptotic behaviour as the crack length increases. In mixed model, the obtained results show that the Mode I stress intensity factor is more affected by the presence of the patch tan that of model. II.
机译：在这项研究中，通过计算裂纹尖端的应力强度因子，使用有限元方法分析了有界复合补丁在I型和混合模式下修复的裂纹的行为。强调了贴剂尺寸和粘合性能对应力强度因子变化的影响。应力强度因子根据模式I中的裂纹长度绘制的图表明，随着裂纹长度的增加，应力强度因子表现出渐近行为。在混合模型中，所获得的结果表明，模式I应力强度因子受模型棕褐色的影响更大。二。

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