中文摘要：

采用准静态压痕（QSD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。

英文摘要：

The quasi-static indentation （QSI） damage resistance of composite laminates was tested. Ultrasonic C-scan and SEM were conducted on QSI specimens under two given loads and the damage process was analyzed. The damage resistance of composite laminates was discussed through the initial delamination contact force f1 and the maximal contact force f2. The repetitive characteristic of f2 was confirmed by testing two kinds of materials systems. Moreover, the effects of the test conditions （specimens dimension and clamp hole diameter） and materials properties （the size of fiber, resin matrix and plying pattern） on the maximal contact force were studied. The test results indicate that the effect of the specimens dimension and clamp hole diameter on the maximal contact force is neglectable, materials components properties （fiber characteristic, resin characteristic and plying ways） could influence the maximal contact force and the dent depth d2 corresponding with f2 is principally decided by the strength and elongation of the fiber.