纤维增强树脂基复合材料是一类高比强度、高比刚度的结构材料.开展该材料的裂纹与强度关系研究具有重要的科学意义和工程价值.采用细观力学模型和有限元方法,分析Ⅰ型裂纹长度和裂尖位置对复合材料应力状态和应力强度因子的影响,进而获得启裂载荷与裂纹长度和裂尖位置的关系.
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