NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Lamb wave scattering by a surface-breaking crack in a plateAn NDE method based on finite-element representation and modal expansion has been developed for solving the scattering of Lamb waves in an elastic plate waveguide. This method is very powerful for handling discontinuities of arbitrary shape, weldments of different orientations, canted cracks, etc. The advantage of the method is that it can be used to study the scattering of Lamb waves in anisotropic elastic plates and in multilayered plates as well.
Document ID
19920045940
Document Type
Conference Paper
Authors
Datta, S. K. (NASA Headquarters Washington, DC United States)
Al-Nassar, Y. (Colorado, University Boulder, United States)
Shah, A. H. (Manitoba, University Winnipeg, Canada)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
STRUCTURAL MECHANICS
Meeting Information
Annual Review of Progress in Quantitative Nondestructive Evaluation(La Jolla, CA)
Funding Number(s)
CONTRACT_GRANT: NSERC-OGP-0007988
CONTRACT_GRANT: NSF MSM-86-09813
CONTRACT_GRANT: N00014-86-K-0280
CONTRACT_GRANT: NAGW-1388
Distribution Limits
Public
Copyright
Other