Abstract
Normal, symmetric fracture toughness tests can give high values for the toughness of the joint between the immiscible polymers polystyrene and polymethylmethacrylate. These high values, which are caused by crazes growing away from the interface into the polymer with lower craze resistance, are not a fair characterization of the toughness of the joint. Much lower, and more realistic, toughness values are obtained by the use of an asymmetric test that tends to drive the crack and crazes more along the interface.
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References
M. L. Williams,Bull. Seismol. Soc. Amer. 49 (1959) 199.
J. R. Rice,J. Appl. Mech. 55 (1988) 103.
G. P. Anderson, S. K. Bennett andK. L. Devries, “Analysis and Testing of Adhesive Joints” (Academic, New York, 1977) p. 194.
W. D. Bascom, R. L. Jones andC. O. Timmons, in “Adhesion Testing Science and Technology”, Vol. 9B, edited by L. H. Lee (Plenum, New York, 1975) p. 501.
H. C. Cao andA. G. Evans, to be published.
K. Cho and H. R. Brown,J. Polym. Sci. Polym. Phys. Ed., to be published.
K. Cho andA. N. Gent,J. Adhesion 25 (1988) 109.
R. P. Wool et al., ACS Polym. Prep. 28 (1987) 38.
M. F. Kanninen,Int. J. Frac. 9 (1973) 83.
T. Kyu andJ. M. Saldanha,J. Polym. Sci. Polym. Lett. 26 (1988) 33.
R. P. Kambour, private communication (1988).
H. R. Brown,Macromolecules 22 (1989) 2859.
S. S. Sternstein, L. Onchin andA. Silverman,J. Appl. Polym. Sci., Appl. Polym. Symp. 7 (1968) 175.
A. K. Gautesen andJ. Dundurs,J. Appl. Mech. 54 (1987) 93.
M. Comninou,ibid. 44 (1977) 631.
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Brown, H.R. Mixed-mode effects on the toughness of polymer interfaces. J Mater Sci 25, 2791–2794 (1990). https://doi.org/10.1007/BF00584881
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DOI: https://doi.org/10.1007/BF00584881