The problem treated is that of an infinite free plate excited symmetrically by two equal and normally opposed step point-loads on its faces. The problem is equivalent to that of the surface normal point-load excitation of an infinite elastic layer, half the thickness of the plate, overlying a rigid half-space with lubricated contact. The formal solution is obtained from the equations of motion in linear elasticity with the aid of a double integral transform technique and residue theory. The stationary phase method, and known characteristics of the governing Rayleigh-Lamb frequency equation, are used to analyze and evaluate numerically the far field displacements. It is shown that the head of the disturbance is composed predominantly of the low-frequency long waves from the lowest mode of wave transmission.
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March 1962
Research Papers
Transient Compressional Waves in an Infinite Elastic Plate or Elastic Layer Overlying a Rigid Half-Space
Julius Miklowitz
Julius Miklowitz
California Institute of Technology, Pasadena, Calif.
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Julius Miklowitz
California Institute of Technology, Pasadena, Calif.
J. Appl. Mech. Mar 1962, 29(1): 53-60 (8 pages)
Published Online: March 1, 1962
Article history
Received:
December 2, 1960
Online:
September 16, 2011
Citation
Miklowitz, J. (March 1, 1962). "Transient Compressional Waves in an Infinite Elastic Plate or Elastic Layer Overlying a Rigid Half-Space." ASME. J. Appl. Mech. March 1962; 29(1): 53–60. https://doi.org/10.1115/1.3636497
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