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Attenuation of elastic waves in a cracked, fluid-saturated solid

Published online by Cambridge University Press:  24 October 2008

A. K. Chatterjee
Affiliation:
University of California, Los Angeles and University of Cambridge, England
A. K. Mal
Affiliation:
University of California, Los Angeles and University of Cambridge, England
L. Knopoff
Affiliation:
University of California, Los Angeles and University of Cambridge, England
J. A. Hudson
Affiliation:
University of California, Los Angeles and University of Cambridge, England

Abstract

The problem of the determination of the overall dynamic elastic moduli of an elastic solid permeated by uniformly distributed penny-shaped cracks is considered. The cracks are assumed to be filled with a viscoelastic material. The orientations of the cracks may be either parallel or perfectly random. The overall velocities as well as the specific attenuation coefficients of plane harmonic compressional and shear waves are calculated for low frequencies and dilute concentration of the cracks.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1980

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References

(1)Chatterjee, A. K. The velocity and attenuation of elastic waves in two phase composites, Ph.D. dissertation, Mechanics and Structures Dept., University of California (Los Angeles, 1976).Google Scholar
(2)Erdogan, F. and Bahar, L. Y.On the solution of simultaneous dual integral equations. J. Society for Industry and Applied Mathematics 12 (1964), 666675.CrossRefGoogle Scholar
(3)Garbin, H. D. and Knopoff, L.The compressional modulus of a material permeated by a random distribution of circular cracks. Quart. Appl. Math. 30 (1973), 453464.Google Scholar
(4)Garbin, H. D. and Knopoff, L.The shear modulus of a material permeated by a random distribution of free circular cracks. Quart. Appl. Math. 33 (1975), 296300.CrossRefGoogle Scholar
(5)Garbin, H. D. and Knopoff, L.Elastic moduli of a medium with liquid-filled cracks. Quart. Appl. Math. 33 (1975), 301303.CrossRefGoogle Scholar
(6)Griggs, D. T., Jackson, D. D., Knopoff, L. and Shreve, R. L.Earthquake prediction: Modelling of the anomalous Vp/Vs, region. Science 187 (1975), 537540.Google Scholar
(7)Hashin, Z.Theory of mechanical behaviour of heterogeneous media. Appl. Mech. Rev. 17 (1964), 19.Google Scholar
(8)Mal, A. K. and Knopoff, L.Elastic wave velocities in two-component systems. J. Inst. Math. Appl. 3 (1967), 376387.Google Scholar
(9)Mal, A. K. and Bose, S. K.Dynamic elastic moduli of a suspension of imperfectly bonded spheres. Proc. Cambridge Philos. Soc. 76 (1974), 587600.CrossRefGoogle Scholar
(10)Max, A. K. and Chatterjee, A. K.The elastic moduli of a fiber reinforced composite. J. Appl. Mech. 44 (1977), 6167.Google Scholar
(11)Murty, G. S.Reflection, transmission and attenuation of elastic waves at a loosely-bonded interface of two half-spaces. Geophys. J. R. astr. Soc. 44 (1976), 389404.Google Scholar
(12)Piau, M.Attenuation of a plane compressional wave by a random distribution of thin circular cracks. Int. J. Engng Sci. 17 (1979), 151167.Google Scholar
(13)Schlue, J. and Knopoff, L.Shear wave anisotropy in the upper mantle of the Pacific basin. Geophys. Res. Letts. 3 (1976), 359362.CrossRefGoogle Scholar
(14)Schlue, J. and Knopoff, L.Shear wave polarization anisotropy in the Pacific basin. Geophys. J. R. astr. Soc. 49 (1977), 145165.CrossRefGoogle Scholar
(15)Schlue, J. and Knopoff, L.Inversion of surface wave phase velocities for an anisotropic structure. Geophys. J. R. astr. Soc. 54 (1978), 697702.CrossRefGoogle Scholar
(16)Waterman, P. C. and Truell, R.Multiple scattering of waves. J. Math. Phys. 2 (1961), 512537.Google Scholar
(17)Westmann, R. A.Simultaneous pairs of dual integral equations. SIAM Review 7 (1965), 341348.CrossRefGoogle Scholar