Subsonic and Intersonic Crack Growth Along a Bimaterial Interface-Reference-Cited by-同舟云学术

Subsonic and Intersonic Crack Growth Along a Bimaterial Interface

Published:1996-12-01 Issue:4 Volume:63 Page:919-924
ISSN:0021-8936
Container-title:Journal of Applied Mechanics
language:en
Short-container-title:

Author:

Singh R. P.¹,Shukla A.²

Affiliation:

1. Graduate Aeronautical Labs, 105-50, California Institute of Technology, Pasadena, CA 91101

2. Dynamic Photomechanics Laboratory, Department of Mechanical Engineering and Applied Mechanics, University of Rhode Island, Kingston, RI 02881

Abstract

An experimental investigation has been conducted to study the dynamic failure of bimaterial interfaces. Interfacial crack growth is observed using dynamic photoelasticity and characterized in terms of crack-tip velocity, complex stress intensity factor, and energy release rate. On the basis of crack-tip velocity two growth regimes are established, viz. the subsonic and transonic regimes. In the latter regime crack-tip velocities up to 1.3 times the shear wave velocity of the more compliant material are observed. This results in the formation of a line of discontinuity in the stress field surrounding the crack tip and also the presence of a pseudo crack tip that travels with the Rayleigh wave velocity (of the more compliant material).

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics

Link

http://asmedigitalcollection.asme.org/appliedmechanics/article-pdf/63/4/919/5464867/919_1.pdf

Reference12 articles.

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3. Deng X. , 1992, “Complete Complex Series Expansions of Near-Tip Fields for Steadily Growing Interface Cracks in Dissimilar Isotropic Materials,” Engineering Fracture Mechanics, Vol. 42, No. 2. pp. 237–242.

4. Lambros, J., and Rosakis, A. J., 1994, “Dynamic Decohesion of Bimaterials: Experimental Observations and Failure Criteria,” To appear in a special volume of the International Journal of Solids and Structures devoted to Dynamic Failure of Modern Materials, 1994.

5. Lambros J. , and RosakisA. J., 1995, “Shear Dominated Transonic Crack Growth in Bimaterials, Part I: Experimental Observations,” Journal of Mechanics and Physics of Solids, Vol. 43, No. 2, pp. 169–188.

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