The popular nondestructivetest methods for the foam-cored sandwich structure are reviewed; including air coupled ultrasonic method, pulse-echo ultrasonic method and shearogragh method.
回顾了泡沫夹层结构常用的无损检测方法:空气耦合超声方法、脉冲回波超声方法以及激光错位散斑干涉方法。
2
Some methods usually used in the field of non - destructivetest of composites, and their basic principles, features, and applied scope are described.