Paper Title:
Influence of Shearing Amount on Detecting Crack-Shaped Internal Defect by Shearography
  Abstract

Shearography, a type of speckle interferometry, is a powerful tool for nondestructive testing (NDT) because it is insensitive to environmental vibration disturbance and easy to detect strain concentration in an internal defect with noncontact and whole field. The shearing amount in Shearography has influence on determining defect size and source location. Thus the shearing amount must be optimally adjusted to get accurate evaluation. This paper investigates the defect size and source location according to the change of shearing amount in artificial slender defects along longitudinal direction of pipeline. Based on the investigation, a new technique is proposed for the quantitative determination of defect size and source location.

  Info
Periodical
Key Engineering Materials (Volumes 321-323)
Edited by
Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi
Pages
112-115
DOI
10.4028/www.scientific.net/KEM.321-323.112
Citation
K. S. Kang, K. S. Kim, H. C. Jung, H. S. Jang, "Influence of Shearing Amount on Detecting Crack-Shaped Internal Defect by Shearography", Key Engineering Materials, Vols. 321-323, pp. 112-115, 2006
Online since
October 2006
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$32.00
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