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Elastic SH wave pro...
Elastic SH wave propagation in a layered anisotropic plate with periodic interface cracks: exact versus spring boundary conditions
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- Boström, Anders E, 1951 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Kvasha, O. V. (författare)
- Kuban State University
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(creator_code:org_t)
- 2010-04-19
- 2010
- Engelska.
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Ingår i: Journal of Mechanics of Materials and Structures. - : Mathematical Sciences Publishers. - 1559-3959. ; 5:1, s. 67-78
- Relaterad länk:
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http://dx.doi.org/10...
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http://msp.org/jomms...
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Abstract
Ämnesord
Stäng
- The propagating antiplane (SH) modes in a symmetrically three-layered, anisotropic, thick plate with a periodic array of interface cracks are investigated. The exact dispersion relation can be derived with the help of a hypersingular integral equation approach and Floquet's theorem. The interface cracks can be a model for interface damage, but a much simpler model is a recently developed spring boundary condition. This boundary condition is used both for the thick plate and in the derivation of plate equations with the help of power series expansions in the thickness coordinate. For low frequencies (cracks small compared to the wavelength) the three models are shown to give the same results and this is a confirmation that the spring boundary condition is a valid approximation at low frequencies.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering (hsv//eng)
Nyckelord
- anisotropy
- periodic cracks
- elastic waves
- spring boundary conditions
- plate equations
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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