The response of a layered elastic half space to a progressing exponentially decaying normal surface pressure is evaluated for a case in which the constant velocity V of the moving pressure is greater than that of the P and S waves, respectively, in the upper layer (superseismic) and smaller than these wave speeds in the underlying half space (subseismic). It is assumed that a steady state exists with respect to coordinate axis attached to the moving load. The superseismic-subseismic geometry results in a stress field that extends over the entire plane, with sharp shocks possible only in that portion of the layer that lies behind the front of the progressing normal loading. A computer program for evaluating stresses and velocities at points in the medium was developed and results are presented for a typical configuration of interest.
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March 1970
Research Papers
Exponentially Decaying Pressure Pulse Moving With Constant Velocity on the Surface of a Layered Elastic Material (Superseismic Layer, Subseismic Half Space)
J. P. Wright,
J. P. Wright
Paul Weidlinger, New York, N. Y.
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M. L. Baron
M. L. Baron
Paul Weidlinger; Columbia University, New York, N. Y.
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J. P. Wright
Paul Weidlinger, New York, N. Y.
M. L. Baron
Paul Weidlinger; Columbia University, New York, N. Y.
J. Appl. Mech. Mar 1970, 37(1): 141-152 (12 pages)
Published Online: March 1, 1970
Article history
Received:
February 13, 1969
Online:
July 12, 2010
Citation
Wright, J. P., and Baron, M. L. (March 1, 1970). "Exponentially Decaying Pressure Pulse Moving With Constant Velocity on the Surface of a Layered Elastic Material (Superseismic Layer, Subseismic Half Space)." ASME. J. Appl. Mech. March 1970; 37(1): 141–152. https://doi.org/10.1115/1.3408423
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