Bulletin of the Seismological Society of America
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Bulletin of the Seismological Society of America; December 1973; v. 63; no. 6-1; p. 1895-1899
© 1973 Seismological Society of America
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Surface-wave propagation under initial tension or compression

E. J. BRUNELLE

DEPARTMENT OF AERONAUTICS AND ASTRONAUTICS RENSSELAER POLYTECHNIC INSTITUTE, TROY, NEW YORK 12181

Abstract

The propagation of Rayleigh waves in a half-space and the propagation of Love waves in a welded layer and half-space are examined when initial tensile or compressive stresses are present. Using the perturbed and linearized equations of elasticity, which include the effects of initial stress, a modified Rayleigh equation and a modified Love equation are obtained. The solution of the equations shows a dramatic change in the phase speeds of the two wave types under initial tension or compression. Numerical results are presented.






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