Characterization of Strain Fields Around Weld Defects

[+] Author and Article Information
S. A. Chavez, V. A. Deason

Idaho National Engineering Laboratory, Idaho Falls, ID 83415

J. Eng. Mater. Technol 109(3), 226-229 (Jul 01, 1987) (4 pages) doi:10.1115/1.3225968 History: Received April 21, 1986; Online September 15, 2009


Moire interferometry is used as an alternate technique to resistance strain gages in finding full-field, local strain response of weldments to applied loads. The principles of moire interferometry and the experimental set-up are explained. Data from the two techniques are compared, with no major discrepancies. The strain field around a surface defect is analyzed using moire data. It is concluded that the moire technique is useful for obtaining full-field strain data in welds.

Copyright © 1987 by ASME
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