Abstract
A stiffness method using the continuity of displacement and traction at the interfaces of a periodically laminated composite medium and the Floquet's Theory has been presented here for studying harmonic wave propagation in a layered composite. Both plane strain and antiplane strain problems have been studied. The equations have been developed for both isotropic and anisotropic layers. Numerical results are presented for the dispersion spectrum for propagation in a periodic two-layered medium and these are shown to compare well with available exact results. Finally, numerical results are presented for a boron-aluminum composite medium, which is modelled as a composition of anisotropic and isotropic layers.
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