Abstract
This paper first reviews recent development and application of laser ultrasonic techniques to the property and integrity evaluation of materials by the research committee organized in Japanese Society of Non-destructive Inspection (JSNDI) from 1998. These involve advances of both hard and soft wares in laser ultrasonic and application to advanced materials and industrial structures. Last portion of this paper introduces research results of acoustic emission (AE) and laser ultrasonic in my laboratory. These involves 1) simulation of artificial impact and fracture sources using pulse laser. 2) estimation of elastic stiffness coefficients of FRPs and unique source location method ofAEs. 3) estimation of elastic properties of sprayed thermal barrier coatings at elevated temperatures and 4) non-destructive estimation of interfacial quality of modified thin surface layers.
