Photoelastic Determination of Interfacial Shear Stresses in Model Composites


Article Preview

Phase-stepping photoelasticity has been used to study the fragmentation of an E-glass fibre in epoxy resin and examine quantitatively the effect of a transverse matrix crack on the stress transfer at an interphase. Unsized glass fibre was coated by plasma polymerisation with a crosslinked conformal film of 90% acrylic acid and 10% 1,7-octadiene. The micro-mechanical response at the fibre-matrix interphase and in the adjacent matrix has been described in detail using contour maps of fringe order. From these, the interfacial shear stress profiles at fibre-break have been calculated.



Key Engineering Materials (Volumes 334-335)

Edited by:

J.K. Kim, D.Z. Wo, L.M. Zhou, H.T. Huang, K.T. Lau and M. Wang




F.M. Zhao et al., "Photoelastic Determination of Interfacial Shear Stresses in Model Composites", Key Engineering Materials, Vols. 334-335, pp. 289-292, 2007

Online since:

March 2007




[1] A.P. Kettle, A.J. Beck, L. O'Toole, F. R. Jones and R. D. Short: Comp. Sci. Technol. 57 (1997) p.1023.

[2] D. J. Marks and F. R. Jones: Composites Part A. 33 (2002) p.1293.

[3] F.M. Zhao, S.A. Hayes, E.A. Patterson, R.J. Young and F.R. Jones: Comp. Sci. Technol. 63 (2003) p.1783.

[4] F.M. Zhao, R.D.S. Martin, S.A. Hayes, E.A. Patterson, R.J. Young and F.R. Jones: Composites Part A. 36 (2005) p.229.

[5] E.A. Patterson and Z.F. Wang: J. Strain Analy. 33 (1998) p.1.

[6] J.W. Dally and W.F. Riley: Experimental stress analysis. 2nd Ed. (McGraw-Hill, New York 1985).

[7] D.M. Schuster and E. Scala: Transactions of the metallurgical society of AIME. 230 (1964) p.1635.

[8] B. Fiedler and K. Schulte: Comp. Sci. Technol. 57 (1997) p.859.

[9] F.M. Zhao, E.A. Patterson and F.R. Jones: Mat. Sci. Eng. A. 412 (2005) pp.83-87.

[10] A. Kelly and N.H. Macmillan: Strong Solid, third ed. (Oxford Science Publications, 1986). Fig. 2 Profiles of interfacial shear stress determined by photoelastic analysis for the coated glass fibre at 15. 33 and 19. 66 MPa 0 4 8 12 16 20 24 0 0. 2 0. 4 0. 6 0. 8 1 Distance from broken-fibre end (mm) Interfacial shear stress (MPa) 19. 66 MPa 15. 33 MPa.