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Scattering of Lamb waves in a composite plateA combined analytical and finite element technique is developed to gain a better understanding of the scattering of elastic waves by defects. This hybrid method is capable of predicting scattered displacements from arbitrary shaped defects as well as inclusions of different material. The continuity of traction and displacements at the boundaries of the two areas provided the necessary equations to find the nodal displacements and expansion coefficients. Results clearly illustrate the influence of increasing crack depth on the scattered signal.
Document ID
19920046076
Document Type
Conference Paper
Authors
Bratton, Robert
(NASA Headquarters Washington, DC United States)
Datta, Subhendu
(Colorado, University Boulder, United States)
Shah, Arvind
(Manitoba, University Winnipeg, Canada)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
Acoustics
Meeting Information
Annual Review of Progress in Quantitative Nondestructive Evaluation(La Jolla, CA)
Funding Number(s)
CONTRACT_GRANT: NSERC-OGP-0007988
CONTRACT_GRANT: N00014-86-K-0280
CONTRACT_GRANT: NAGW-1388
Distribution Limits
Public
Copyright
Other
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