纤维复合材料的损伤与破坏是缺陷萌生发展的过程.裂纹缺陷周围的应力变形场是影响裂纹扩展的重要因素.本文通过裂纹缺陷存在于纤维复合介质中的力学分析模型,由断裂力学中的J积分及有限元计算方法,探讨不同纤维组分和裂纹位于介质中不同位置时,应力场参量随之变化的规律,并进行了相关讨论分析.
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