采用界面弹性-软化内聚力模型,用解析法研究了单纤维/聚合物基体复合材料高温固化后的残余应力分布.结果表明:较高固化温度引起界面软化和脱粘;纤维中残余应力分布由应力增长区和应力平台区组成,残余应力平台值与固化温度及纤维和基体热膨胀系数差值成正比,界面参数只对残余应力增长区的分布有影响;在界面断裂韧性相同情况下,界面弹性模量增加缩短应力传递长度,界面软化模量增加减少软化长度,弹性和软化模量变化不影响界面脱粘的温度.
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