Title :
Fringe pattern around surface crack observed with scanning acoustic microscope
Author :
Yamanaka, Keiji ; Enomoto, Yoshihide
Author_Institution :
Mechanical Engineering Laboratory, Tsukuba, Japan
Abstract :
A surface crack of MgO single crystal was observed with a scanning acoustic microscope and a fringe pattern was found around the cracking line. A model was proposed in which a leaky Rayleigh wave reflected by the crack plays an essential role in the formation of the fringe pattern.
Keywords :
acoustic microscopes; cracks; ultrasonic materials testing; MgO; fringe pattern; model; scanning acoustic microscope; surface crack;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19810448
