层裂微裂纹的形态及层裂程度的表征参量

文中运用超声C扫描检测系统对层裂试件的微损伤形态进行检测，确是出在一维应变加载条件下的微裂纹形态呈钱币型；另一方面，根据钱币型微纹形态，通过对层裂损伤演经过程的分析，提出了一个描述层裂程度的无量纲参量，与层裂实验数据的对比说明了这个参量能够很好地描述层裂损伤程度

玻璃纤维增强复合材料的I型层间断裂韧性

介绍了玻璃纤维增强复合材料Ⅰ型层间断裂韧性“Ｒｏｕｎｄ Ｒｏｂｉｎ Ｔｅｓｔ”的结果。随着偶联剂浓度的改变，Ｉ型裂纹的扩展方式从稳态向非稳态转变。这类断裂韧性强烈地依赖界面性能

On-line observation of interlaminar damage by ultrasonic inspection

This paper explores an on-line experimental method to highlight the process of internal damage development in composites by taking advantage of ultrasonic inspection. A loading device, which can work together with an ultrasonic inspection system, was designed, and the interlaminar shear damage of a double-sided grooved specimen of composite was examined on-line with the system. A full view of the progressive internal interlaminar damage, seen only with difficulty by common inspection methods, was successfully achieved