Abstract
A quantitative model has been developed to account for the degree of blunting that occurs at crack tips in epoxy materials prior to the onset of crack propagation. This mechanism controls the subsequent mode of crack growth and, to a large extent, the toughness as defined by the stress intensity factor for crack initiation. From this model a unique fracture criterion is derived which is applicable over all modes of crack propagation.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
J. F. Knott, “Fundamentals of Fracture Mechanics” (Butterworths, London, 1973).
J. G. Williams, “Stress Analysis of Polymers” (Longmans, London, 1973).
R. A. Gledhill, A. J. Kinloch, S. Yamini and R. J. Young, Polymer 19 (1978) 574.
R. A. Gledhill and A. J. Kinloch, Polymer Eng. Sci. 19 (1979) 82.
S. Mostovoy, E. J. Ripling and C. F. Bersch, J. Adhesion 3 (1971) 125.
S. Yamini and R. J. Young, Polymer 18 (1977) 1075.
R. A. Gledhill and A. J. Kinloch, J. Mater. Sci. 10 (1975) 1261.
D. C. Phillips and J. M. Scott, ibid. 9 (1974) 1202.
K. Selby and L. E. Miller, ibid. 10 (1975) 12.
R. J. Young and P. W. R. Beaumont, ibid. 10 (1975) 1343.
E. J. Ripling, S. Mostovoy and C. Bersch, J. Adhesion 3 (1971) 145.
R. A. Gledhill, A. J. Kinloch and S. J. Shaw, J. Mater. Sci. 14 (1979) 1769.
A. J. Kinloch and S. J. Shaw, International Conference on Adhesion and Adhesives, Durham September (1980).
M. I. Hakeem and M. G. Phillips, J. Mater. Sci. 13 (1978) 2284.
B. W. Cherry and K. W. Thomson, Int. J. Fracture 14 (1978) R17.
J. M. Scott, D. C. Phillips and M. Jones, J. Mater. Sci. 13 (1978) 311.
R. M. McMeeking, J. Mech. Phys. Solids 25 (1977) 357.
J. G. Williams and J. M. Hodginkinson, to be published.
I. Constable, L. E. Culver and J. G. Williams, Int. J. Fracture Mech. 6 (1970) 279.
J. G. Williams, J. Mater. Sci. 12 (1977) 2525.
R. A. W. Fraser and I. M. Ward, ibid. 9 (1974) 1624.
Idem, ibid. 12 (1977) 459.
G. L. Pitman, I. M. Ward and R. A. Duckett, ibid. 13 (1978) 2092.
H. Neuber, “Theory of Notch Stresses” (Julius Springer, Berlin, 1937).
R. J. Young, in “Development in Polymer Fracture-1”, edited by E. H. Andrews (Applied Science, London, 1979) p. 183.
A. J. Kinloch, Metal Sci. 14 (1980) to be published.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kinloch, A.J., Williams, J.G. Crack blunting mechanisms in polymers. J Mater Sci 15, 987–996 (1980). https://doi.org/10.1007/BF00552112
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00552112