Dynamic fracture toughness measurements in composites by instrumented Charpy testing: influence of aging
Dynamic fracture toughness measurements in composites by instrumented Charpy testing: influence of aging
复制标题
通过仪器夏比测试测量复合材料的动态断裂韧性：老化的影响
DOI：
10.1016/s0266-3538(02)00074-x
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发表时间：
2002
影响因子：
9.1
通讯作者：
A. Kobayashi
中科院分区：
文献类型：
--
作者：
A. Fernández‐Canteli;A. Argüelles;J. Viña;M. Ramulu;A. Kobayashi
通过在示波试验机上测试缺口试件，研究了三种不同纤维织物复合材料层合板的动态性能。用试件锤接触点处的记录冲击力和位移来评价材料的I型断裂能和动态断裂韧性。在不同时效条件下，研究了冲击速度、裂纹尺寸和层叠顺序对断裂韧性的影响。时效对动态断裂韧性有显著影响，但对静态断裂韧性影响不大。
The dynamic behavior of three different fiber fabric composite laminates was studied by testing notched specimens in an instrumented Charpy machine. The registered impact force and displacement at the specimen hammer contact point were used to evaluate Mode-I fracture energy and dynamic fracture toughness. The changes in fracture toughness due to impact velocity, crack size and stacking sequence of the specimen were investigated with different degrees of aging conditions. Aging was found to significantly affect the dynamic fracture toughness, but had less effect on the static fracture toughness.