声发射法是探测固体中产生裂纹、变形等局部细观变化的有力手段,作为一种工业技术已经进行了十多年的研究,其应用范围正在扩大。过去用于金属材料和岩石等,现在已遍及纤维增强塑料、增强金属等复合材料以及陶瓷、塑料等许多方面。在纤维增强塑料中,多数纤维以不同方向且不连续地存在于基体中,因此采用射线穿透法及超声反射法探伤容易产生问题。而声发射法是检测动态破坏过程的出色的无损检测方法,在检测材料内部产生破坏现象方面可发挥很大的威力。据资料报导,声发射法, Acoustic emission method is to detect solid crack, deformation and other local micro-changes in a powerful means, as an industrial technology has been carried out for more than 10 years of research, its application is expanding. In the past for metal materials and rock, etc., now has fiber-reinforced plastics, reinforced metal composites and ceramics, plastics and many other aspects. In fiber reinforced plastics, the majority of fibers in different directions and discontinuities exist in the matrix, so the use of ray penetration method and ultrasonic reflection method is prone to problems. Acoustic emission method is an excellent non-destructive testing method to detect dynamic failure process, which can exert great power in detecting the destruction phenomenon inside the material. According to statistics, acoustic emission method,