Abstract
Investigated is the push-in test used to determine the interfacial strength of fiber-reinforced composites via the method of singular integral equation. Singularity analysis shows that stresses near the end for an intact interface have a power singularity, and the singularity index is only dependent on the material constants of the fiber and the matrix. In order to describe the interfacial strength at the initial debonding of the push-in test, critical interfacial shear stress intensity factor and the related singularity index are adopted. This interfacial strength characteristic parameter is applied to analysis of the push-in test results of carbon fiber reinforced epoxy resin composites.
Similar content being viewed by others
References
Tse, M. K., Effect of interfacial strength on composite properties,SAMPE J, 1985 (Sept/Oct): 11.
Mandell, J. F., Grande, D. H., Tsiang, T. et al., A modified microdebonding test for directin-situ fiber matrix bond strength determination in fiber composites, inComposite Materials: Testing and Design, ASTM STP 893, 1986, 87–108.
Netravali, A. N., Stone, D., Ruoff, S. et al., Continuous microindentor push through technique for measuring interfacial shear strength of fiber composites,Comp. Sci. Tech., 1989, 34: 289.
Watson, M. C., Clyne, T. W., The tensioned push-out test for fiber-matrix interface characterization under mixed mode loading,Mater. Sci. Eng., 1993, A160: 1.
Kerans, R. J., Parthasarathy, T. A., Theoretical analysis of the fiber pullout and pushout test,J. Am. Ceram. Soc., 1991, 74: 1585.
Kallas, M. N., Koss, D. A., Hahn, H. T. et al., Interfacial stress state present in a thin slice fiber pushout test,J. Mater. Sci., 1992, 27: 3821.
Koss, D. A., Heilman, J. R., Kallas, M. N., Fiber pushout and interfacial shear in metal-matrix composites,JOM, 1993, 3: 34.
Chen, E. J. H., Young, J. C., The microdebonding testing system: a method of quantifying adhesion in real composites,Comp. Sci. Tech., 1991, 42: 189.
Dollas, A., Steif, P. S., Wang, Y. C. et al., Analysis of the fiber push-out test,Int. J. Solids Structures, 1993, 30: 1313.
Pitkethly, M. J., Favre, J. P., Gaur, U. et al., A Round Robin programme on interfacial test methods,Comp. Sci. Tech., 1993, 48: 205.
wijeyewickrema, A. C., Keer, L. M., Hirashma, K. et al., Annular crack surrounding an elastic fiber in a tension field,Int. J. Solids Struct., 1991, 27: 315.
Erdelyi, A.,Tables of Integral Transform, Vols. 1–2, New York: McGraw-Hill, 1954.
Muskhelishvili, N. I.,Singular Integral Equations, Groningen: Noordhoff, 1953.
Erdogan, F., Biricikoglu, V., Two bonded half planes with a crack going through the interface,Int. J. Eng. Sci., 1973, 11: 745.
Bogy, D. B., Two edge-bonded elastic wedges of different materials and wedge angles under surface tractions,ASME J. Appl. Mech., 1971, 38: 377.
Hein, V. L., Erdogan, F., Stress singularities in a two-material wedge,Int. J. Fract. Mech., 1971, 7: 317.
Dempsey, J. P., Sinclair, G. B., On the singular behavior at the vertex of a bi-material wedge,J. Elasticity, 1981, 11: 317.
Author information
Authors and Affiliations
Additional information
Project supported by the National Natural Science Foundation of China (Grant No. 19232011), and partly by Laboratory of Solid Mechanics and Laboratory of Failure Mechanics of State Education Commission of China.
Rights and permissions
About this article
Cite this article
Wang, Q., Ji, X. & Wang, Y. Stress singularity near the end of a cylindrical interface and the linear elasticity of push-in tests. Sci. China Ser. E-Technol. Sci. 41, 471–481 (1998). https://doi.org/10.1007/BF02917021
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02917021