Fracture Toughness of Chopped Glass Fiber and K.S. Parihar
Abstract
The chopped glass fibre phenolic Composite to be used for the construction of aircraft parts has been prepared and the fracture toughness of this composite was evaluated using J-integral method. The effects of humidity and 3 per cent NaCl on the fracture toughness values were also investigated. For this, a set of six specimens having crack lengths varying from 0-18 mm was tested. Five such sets of specimens were selected for the experimental studies to check the reproducibility of the results and to evaluate the effect of environment.References
Sih, G.C.; Hilton, P.D.; Badalliance, R.; Shemberger, P.S. & Villarreal, G. Fracture mechanic for fibrous composites. Analysis of the test method for high modulus fibres and composites. American Society of Testing Materials, USA, 1973. pp. 98-132. ASTMSTP- 521.
Mandell, J.F.; Wang, S.S. & McGarry, F.J. The extension of crack-tip damage zones in fibre-reinforced plastic laminate. J: Compos.
Mater., 1975,9(2),266.
Gaggar, S.K. & Broutman, L.J. Crack growth resistance of ran dum fibre composites. J. Compos. Mater., 1975,9,216-27.
Gaggar, S.K. & Broutman, L.J. Strength and fracture properties of randum fibre polyester composites. Fibre Sci. Technol., 1976,9,205-24.
Yeow, Y.J.; Morris, D.H. & Brinson, H.F. The fracture behaviour of graphite/epoxy lafninates. Experimental Mechanics, 1979,19(9), 1-8.
Rice, J.R. A path-independent integral and the approximate analysis of strain concentration by notches and cracks. J Appl. Mech., 1968, 35,379-86.
Brogerg, K.B. Crack growth criteria and nonlinear fracture mechanic. J. Mech. Phys. Solids, 1971,19,407-18.
Rice, J .R. & Rosengren, G .f .Plane-strain defomlation near a crack-tip in a power law hardening material. J: Mech. Phys. Solids, 1968,16,1-12.
Agarwal, B.D.; Patro, B.D. & Prashant Kumar. integral as fracture criterian for short fibre composite: An experimental approach. Enge. Fract Mech, 1984,19(4),675-84.
Parihar, K.S. & Singh, R.K. The J-integral as fracture criterian for polycarbonate thermoplastic. J. Mater. Sci., 1986,211,3921-926.
Begley, J.A. & Landes, J.D. The J-integral as a fracture criterian: Fracture toughness. American Society of Testing Materials, USA, 1972. 20 p. ASTM-S1P-54.
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