Title :
Numerical Simulation of Laser-Induced Rayleigh Wave and Its Interaction with Sub-Surface Void in Solid
Author :
Zhao Yan ; Shen Zhonghua ; Lu Jian ; Ni Xiaowu ; Cui Yiping
Author_Institution :
Sch. of Sci., Nanjing Univ. of Sci. & Technol., Nanjing, China
Abstract :
In this paper, the laser-induced Rayleigh wave and its interaction with sub-surface void in solid is numerically simulated by the finite element method. Typical calculation is executed for laser induced Rayleigh wave at the surface of solid without void and solid with circular void. The results provide necessary theoretical background for the nondestructive detection of laser ultrasonic.
Keywords :
Rayleigh waves; finite element analysis; laser beam applications; ultrasonic materials testing; voids (solid); finite element method; laser ultrasonic; laser-induced Rayleigh wave; nondestructive detection; numerical simulation; subsurface void; Acoustic signal detection; Finite element methods; Gas lasers; Laser modes; Laser theory; Numerical simulation; Solid lasers; Solid modeling; Surface emitting lasers; Temperature;
Conference_Titel :
Photonics and Optoelectronic (SOPO), 2010 Symposium on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4963-7
Electronic_ISBN :
978-1-4244-4964-4
DOI :
10.1109/SOPO.2010.5504172
