Abstract
The forced vibrational response of the rectangular parallelepiped is of particular interest in the study of wave propagation in three‐dimensional solids and especially in the characterization of acoustic emission sources. There has been considerable interest in studying source mechanisms in order to predict, and perhaps eventually control, flaw growth in structural materials. The acoustic emission source waves generated by flaw growth are thought to be pulselike functions of stress (force) which are produced by the step displacements associated with material yielding. Much of this type of emission in solids is produced internally and can, therefore, be modeled as a body force phenomenon; as such, this paper presents an exact, normal mode solution for the response of a rectangular parallelepiped to an impulsive body force. The numerical results prior to any reflections from the boundaries show agreement with the infinite space solution.
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