Model-based nondestructive testing (NDT) requires fast and accurate solutions of the response of the mechanical model including the defect as well as the sensitivity of this response to the variation of the parameters describing the defect. For modelling crack-type defects under dynamic conditions,
Boundary integral equations for an interface linear crack under harmonic loading
โ Scribed by I.I. Mykhailova; O.V. Menshykov; M.V. Menshykova; I.A. Guz
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 571 KB
- Volume
- 234
- Category
- Article
- ISSN
- 0377-0427
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โฆ Synopsis
The present study is devoted to application of boundary integral equations to the problem of a linear crack located on the bimaterial interface under time-harmonic loading. Using the Somigliana dynamic identity the system of boundary integral equations for displacements and tractions at the interface is derived. For the numerical solution the collocation method with piecewise constant approximation on each linear continuous boundary elements is used. The distributions of the displacements are computed for different values of the frequency of the incident tension-compression wave. Results are compared with static ones.
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