对含孔损伤复合材料层合板单面贴补后进行拉伸试验研究.测量了层合板的应变分布、修理后层合板中心点的离面位移及拉伸强度等,考察了补片的厚度、大小等因素对修理效果的影响.结果显示,增加补片的厚度和直径能够提高母板的承拉能力,但是增加补片的厚度会导致层合板离面位移增大.对无侧边支持的单面贴补层合板进行计算分析时,必须考虑偏心载荷引起的弯矩的影响.在此基础上,采用分层损伤判据建立了三维有限元模型,对单面贴补层合板的破坏机理和拉伸强度进行了计算和分析.结果表明,修理后层合板的拉伸破坏是由补片或母板内与胶接面相邻的层间分层引起的;计算结果与试验结果-致.
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