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粘弹性基体中环绕纤维的环形裂纹的&Iota|型和ΙΙ&Iota|型应力强度因子

, PP. 84-88

Keywords: 粘弹性,复合材料,环形裂纹,应力强度因子

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Abstract:

分析了粘弹性基体中环绕纤维的环形裂纹的é型和?型应力强度因子及其时间相关性。根据文献[1]、文献[2]中的弹性解,求出了粘弹性基体中环绕纤维的环形裂纹的é型和?型应力强度因子在Laplace变换域内的解。对其进行Laplace数值反演后,得到了相应的é型和?型应力强度因子在时间域内的变化曲线。结果表明,给定长度的环形裂纹在尚未接触界面时,其两端正则化的é型和?型应力强度因子均随时间增大而减小。

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