Affiliation:
1. School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran
Abstract
Laser shearography is a relatively new and useful method for nondestructive testing of many kinds of material that need robust methods to be applicable in industrial environments. To get the best results of this inspection method, adjusting the loading parameters properly and precisely is of a great consideration. In this article, a new numerical–experimental procedure to study the effects of thermal loading parameters in the shearography test of defected materials is presented. In this regard, a numerical procedure was developed to simulate shearographic fringe patterns using finite element analysis and supplementary programming. The modeling method was evaluated using experimental tests in a Plexiglas circle subjected to the thermal and mechanical loadings. Flat-bottom holes indicating internal defects of the test part were simulated and experimented to study the parameters that should be adjusted and controlled to get desirable outcomes from shearography nondestructive testing. It has been showed that for each distinct case of nondestructive testing, a thermal loading diagram can be extracted to get credible results.
Subject
Industrial and Manufacturing Engineering,Mechanical Engineering
Cited by
18 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献