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Elastic SH wave propagation in a layered anisotropic plate with interface damage modelled by spring boundary conditions

Anders Boström (Institutionen för tillämpad mekanik, Dynamik) ; Michael Golub (Institutionen för tillämpad mekanik, Dynamik)
Quarterly Journal of Mechanics and Applied Mathematics (0033-5614). Vol. 62 (2009), 1, p. 39-52.
[Artikel, refereegranskad vetenskaplig]

Elastic SH wave propagation in a layered anisotropic plate with interface damage is modelled in several steps. A single interface crack between two half-spaces is first studied and an explicit solution for the crack-opening displacement is obtained at low frequencies. This is then generalized to a random distribution of cracks at the interface and the result is reformulated as a spring boundary condition. As an example of its usefulness, this boundary condition is then used in the derivation of a plate equation by expanding the displacements in power series in the thickness coordinate.

Nyckelord: elastic waves, plate, damage, anisotropy



Denna post skapades 2009-01-23. Senast ändrad 2016-10-18.
CPL Pubid: 88812

 

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Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Dynamik (1900-2017)

Ämnesområden

Teknisk mekanik

Chalmers infrastruktur