Abstract
We consider a body at rest in a prestressed configurationκwhich responds elastically to small incremental displacements fromκthe incremental elasticity tensor is supposed isotropic. On the basis of the paper [1] we characterize the conditions for the propagation of longitudinal, transverse, and oblique small-displacement waves superimposed toκFormulae for the propagation speeds of these waves are written in terms of the prestress components and Lamparameters. The amplitudes of longitudinal and transverse waves are eigenvectors for the prestress.
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Montanaro, A. On Small-Displacement Waves in Prestressed Bodies with Isotropic Incremental Elasticity Tensor. Meccanica 32, 505–514 (1997). https://doi.org/10.1023/A:1004238416907
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DOI: https://doi.org/10.1023/A:1004238416907