Abstract
The isochromatic fringe patterns surrounding an intersonically propagating interface crack are developed and characterized using the recently developed stress field equations. A parametric investigation is conducted to study the influence of various parameters such as the crack-tip velocity and the contact coefficient on the isochromatic fringe patterns. It has been observed that the crack-tip velocity has a significant effect on the size and shape of isochromatic fringe patterns. The contact coefficient, on the other hand, does not affect the fringe pattern significantly. The paper also presents a numerical scheme to extract various parameters of interest such as the series coefficients of the stress field, the contact coefficient and the dissipation energy. The results show that the crack growth is highly unstable in the intersonic regime, and the energy dissipation decreases monotonically with increasing crack-tip velocity. The experimental data fit well with the recently proposed fracture criterion for intersonic interfacial fracture.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Tippur, H.V. andRosakis, A.J., “Quasi-static and Dynamic Crack Growth Along Bimaterial Interfaces: A Note on Crack-tip Field Measurements Using Coherent Gradient Sensing,” EXPERIMENTAL MECHANICS,31,243–251 (1991).
Yang, W., Suo, Z., andShih, C.H., “Mechanics of Dynamic Debonding,”Proc. Roy. Soc. Lon.,A433,679–697 (1991).
Deng, X., “Complete Complex Series Expansions of Near-tip Fields for Steadily Growing Interface Cracks in Dissimilar Isotropic Materials,”Eng. Fract. Mech. 42,237–242 (1992).
Nakamura, T., “Three Dimensional Stress Fields of Elastic Interface Cracks,”J. Appl. Mech. 58,939–946 (1991).
Xu, X.-P. andNeedleman, A., “Numerical Simulations of Dynamic Crack Growth Along an Interface,”Int. J. Fract.,74,289–324 (1996).
Liu, C., Lambros, J., andRosakis, A.J., “Highly Transient Elastodynamic Crack Growth in a Bimaterial Interface: Higher Order Asymptotic Analysis and Optical Experiments,”J. Mech. Phys. Solids 41,12,1857–1954 (1993).
Lambros, J., andRosakis, A.J., “Development of a Dynamic Decohesion Criterion for Subsonic Fracture of the Interface Between Two Dissimilar Materials,”Proc. Roy. Soc. Lon. A451,711–736 (1995).
Singh, R.P., Kavaturu, M., andShukla, A., “Initiation, Propagation and Arrest of a Bimaterial Interface Crack Subjected to Controlled Stress Wave Loading, Int. J. Fract.,83,291–304 (1997).
Kavaturu, M. andShukla A., “Dynamic Fracture Criteria for Crack Growth Along Bimaterial Interfaces,”J. Appl. Mech.,65,293–299 (1998).
Lambros, J. andRosakis, A.J., “Shear Dominated Transonic Crack Growth in Bimaterials, Part I: Experimental Observations,”J. Mech. Phys. Solids,43,169–188 (1995).
Singh, R.P. andShukla, A., “Subsonic and Transonic Crack Growth Along a Bimaterial Interface,”J. Appl. Mech. 63,919–924 (1996).
Singh, R.P., Lambros, J., Shukla, A., andRosakis, A.J., “Investigation of the Mechanics of Intersonic Crack Propagation Along a Bimaterial Interface Using Coherent Gradient Sensing and Photoelasticity,”Proc. Roy. Soc. Lond.,453,2649–2667 (1997).
Liu, C., Huang, Y., andRosakis, A.J., “Shear Dominated Transonic Interfacial Crack Growth in a Bimaterial-II. Asymptotic Fields and Favorable Velocity Regimes,”J. Mech. Phys. Solids,43,189–206 (1995).
Huang, Y., Wang, W., Liu, C., and Rosakis, A.J., “Intersonic Interfacial Crack Growth in a Bimaterial: An Investigation of Crack Face Contact,” manuscript submitted (1997).
Moré, J.J., “The Levenberg-Marquardt Algorithm: Implementation and Analysis,” Numerical Analysis, ed. G.A. Watson, Lecture Notes in Mathematics 630, Springer Verlag, 105–116 (1977).
Freund, L.B., “Response of an Elastic Solid to Nonuniformly Moving Surface Loads,”J. Appl. Mech.,40,699–704 (1979).
Andrews, D.J., “Rupture Velocity in Plane Strain Shear Cracks,”J. Geophysical Res.,81,5679–5687 (1976).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kavaturu, M., Shukla, A. & Rosakis, A.J. Intersonic crack propagation along interfaces: Experimental observations and analysis. Experimental Mechanics 38, 218–225 (1998). https://doi.org/10.1007/BF02325746
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02325746