Abstract
A study of the fracture surfaces of polystyrene has revealed a direct connection between the fracture path and the shape and distribution of crazes. The effect is demonstrated by two examples; firstly, the propagation of a crack through initially uncrazed material and, secondly, the propagation of a crack through material containing an array of planar crazes parallel to the plane of propagation. It is shown that cracks propagate preferentially along crazes and that the formation of crazes in the stress field of a propagating crack results in the “hackle” surface normally associated with the propagation of cracks at high velocities.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
J. P. Berry,J. Polymer Sci. 50 (1961) 313.
J. Murray andD. Hull,Polymer (Lond.)10 (1969) 451.
Idem, J. Polymer Sci. in press.
Idem, J. Polymer Sci. in press.
M. Bevis andD. Hull, unpublished work.
P. I. Vincent, Case Western Reserve University, Report T.R. No. 97.
I. Wolcock andS. B. Newman, 1964, “Fracture Process in Polymeric Solids”, edited by B. Rosen (Interscience, New York, 1964) p. 235.
E. H. Andrews, “Fracture in Polymers” (Oliver and Boyd, London, 1968).
P. Beardmore andJ. Fellers, to be published.
P. Beardmore andD. Hull,Met Sci. J. 2 (1968) 1.
A. J. McEvily, R. C. Boettner, andT. L. Johnston, “Fatigue, an Interdisciplinary Approach” (Syracuse Univ. Press, 1964) p. 95.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Hull, D. Effect of crazes on the propagation of cracks in polystyrene. J Mater Sci 5, 357–363 (1970). https://doi.org/10.1007/BF02397790
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02397790