Role of shearography in nondestructive testing

被引：0

作者：

Hung, MYY ^{[1
]}

机构：

[1] City Univ Hong Kong, Dept Bldg & Construct, Kowloon, Hong Kong, Peoples R China

来源：

THIRD INTERNATIONAL CONFERENCE ON EXPERIMENTAL MECHANICS | 2002年 / 4537卷

关键词：

shearography; speckle interferometry; nondestructive testing; structural evaluation; deformation measurement; stress measurement; vibration measurement; leakage detection; 3-D shape measurement;

D O I：

暂无

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

This article reviews shearography and its applications in nondestructive testing. Shearography is a laser-based technique for full-field and non-contacting measurement of surface deformation. Despite being a relative young technique, it has already received considerable industrial acceptance, in particular, for nondestructive testing. One major difference of shearography from other NDT techniques is the mechanics of revealing flaws. Shearography reveals defects in an object by identifying defect-induced deformation anomalies which are more relevant to structural weakness. Other applications of shearography include strain measurement, material characterization, residual stress evaluation, leak detection, vibration studies and 3-D shape measurement.

引用

页码：1 / 8

页数：8