Bibliographic Details
| Title: |
Analysis of the field of a plane SH-wave scattered by a finite crack on the interface of materials. |
| Authors: |
Kurylyak, D. B.1, Nazarchuk, Z. T.1, Voitko, M. V.1 |
| Source: |
Materials Science. Nov2006, Vol. 42 Issue 6, p711-724. 14p. 4 Diagrams, 1 Graph. |
| Subjects: |
Elastic wave diffraction, Head waves, Wiener-Hopf equations, Surface defects, Elasticity, Materials science |
| Abstract: |
We solve the problem of diffraction of plane elastic SH-waves on a crack of finite width located in the plane interface of two different perfectly joined isotropic elastic materials. The problem is solved by the Wiener-Hopf method. An approximate solution of the Wiener-Hopf equation is obtained. The numerical results in the far-field zone are presented for a broad frequency band. The specific features of distribution of the radiation field in the zone of critical angles are analyzed. The probability of excitation of lateral waves is investigated and the possibility of detection of defects is discussed. A simple experimental procedure is proposed for the NDT evaluation of crack width in a test bench based on measuring the modulus of the field of displacements in the zone of critical angles. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
