采用准静态压痕(QSI)实验方法针对多种材料对集中准静态压痕力的损伤阻抗进行了测试.选取2个特征载荷下的试样进行了超声C扫描探伤和扫描电镜(SEM)显微观察,分析了QSI实验中层合板的损伤过程,针对初始分层接触力f1和最大接触力f2对材料的损伤阻抗特性进行了分析.测试了2种材料体系层压板的最大接触力,发现该值具有较好的可重复性.研究了测试条件(试样尺寸和支持条件)和材料特性(不同纤维、基体种类和铺层方式)对最大接触力的影响.实验结果表明,试样尺寸和支持条件对最大接触力的影响较小,在必要时可以采用非标试样测试最大接触力,而最大接触力与树脂基体、纤维特性及铺层方式都有关,最大接触力对应的凹坑深度d2主要由纤维强度和延伸率决定,树脂特性对d2有影响但影响程度较小.
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