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BRIEF NOTES

Crack-Tip Field of a Supersonic Bimaterial Interface Crack

[+] Author and Article Information
J. Wu

Conexant Systems, Inc., 4311 Jamboree Road, Newport Beach, CA 92561.

J. Appl. Mech 69(5), 693-696 (Aug 16, 2002) (4 pages) doi:10.1115/1.1427338 History: Received September 26, 2000; Revised July 30, 2001; Online August 16, 2002
Copyright © 2002 by ASME
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References

Figures

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A half-space crack with its tip moving at a constant speed v with respect to the quiescent coordinate system x–o–y
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A singular characteristic line corresponding to a real eigenvalue in the Stroh eigenvalue problem Eq. (1)
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The real part of the two coupled branches of the oscillatory index as a function of the crack-tip speed for the anisotropic niobium-basal sapphire system. The two branches have identical real parts but with opposite sign. The third branch always has a zero real part.
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Crack-tip singularity exponent q as a function of the crack-tip speed for the anisotropic niobium-basal sapphire system. Note, q=1/2+εm, where εm is the imaginary part of the oscillatory index ε.
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The real part of the two coupled branches of the oscillatory index as a function of the crack-tip speed for the isotropic PMMA-steel system. The two branches have identical real parts but with opposite sign. The third branch always has a zero real part.
Grahic Jump Location
Crack-tip singularity exponent q as a function of the crack-tip speed for the isotropic PMMA-steel system. Note, q=1/2+εm, where εm is the imaginary part of the oscillatory index ε.
Grahic Jump Location
Crack-tip singularity exponent q as a function of the crack-tip speed for the homogeneous anisotropic basal sapphire system. Note, q=1/2+εm, where εm is the imaginary part of the oscillatory index ε.
Grahic Jump Location
Crack-tip singularity exponent q as a function of the crack-tip speed for the homogeneous isotropic PMMA system. Note, q=1/2+εm, where εm is the imaginary part of the oscillatory index ε.

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