In the context of wave propagation in damaged (elastic) solids, an analytical approach is developed to study normal penetration of a longitudinal plane wave into a periodic array of rectangular defects. Reducing the problem to some integral equations holding over the base and height of the openings, a direct numerical method is applied to give a complete solution for various exact or approximated forms. Several figures show the peculiarities of the structure and lead to physical conclusions.

Issue Section:
Technical Papers
Keywords:
wave propagation, elasticity, elastic waves, numerical analysis, integral equations
Topics:
Boundary-value problems, Integral equations, Numerical analysis, Solids, Wave propagation, Waves, Reflection, Reflectance
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