以渐进损伤方法和双线性内聚力模型为理论基础,结合ABAQUS用户子程序USDFLD对轴棒法C/C复合材料的界面刚度进行了研究.结果表明,轴棒法C/C复合材料的界面切向刚度介于1.0×105～0.5×104 N/mm3；当界面刚度取值过高时,计算得到的极限破坏载荷过低；当界面刚度取值过低时,计算得到的弹性模量偏低.
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