Abstract
The kinetics of craze growth have been investigated in a commercial cross-linked poly-(methylmethacrylate). A method has been developed for measuring the growth of a craze during flexural creep loading, and allows the variation of load during the growth measurements. Crazes were initiated using a 1∶1 isopropanol/water vol: vol mixture as the test fluid, and the time dependence of their growth showed that the process is diffusion controlled. The effect of stress on the growth rate was determined for individual crazes, and was found to be a linear function under the conditions of the experiment. Thus the increase in length with time could be modelled by a three parameter equation, but these parameters were found to depend on the pre-conditioning of the plastic.
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References
S. Rabinowitz andP. Beardmore,Crit. Rev. Macromol. Sci. 1 (1972) 1.
R. P. Kambour,Macromol. Rev. 7 (1973) 1.
E. H. Andrews, in “The Physics of Glassy Polymers”, edited by R. N. Haward (Applied Science Publishers Ltd, London, 1973) 394.
E. J. Kramer, in “Developments in Polymer Fracture — 1”, Edited by E. H. Andrews (Applied Science Publishers Ltd, London, 1971) p.55.
N. Brown,Methods Exp. Phys. 16C (1980) 233.
ANSI/ASTM F484-77 “Stress crazing of acrylic plastics in contact with liquid or semi-liquid compounds”.
US Department of Defense Military Specification, MIL-P-8184B, “Plastic Sheet, Acrylic, Modified” (1968).
US Department of Defense, Fed. Test Method Std. No. 406, “Plastics: Methods of Testing” (1961), Method 6053.
P. J. Burchill andR. H. Stacewicz,J. Mater. Sci. Lett. 1 (1982) 448.
N. J. Mills,J. Mater. Sci. 16 (1981) 1332.
J. Opfermann andG. Menges, in “Advances in Research on the Strength and Fracture of Materials”, Vol. 3B, edited by D. M. R. Taplin (Pergamon Press, New York, 1978) p. 1095.
J. Murray andD. Hull,J. Polym. Sci. A-2 8 (1970) 1521.
ANSI/ASTM E171-63 “Standard Atmospheres for Conditioning and Testing Materials”.
R. G. Budynas, “Advanced Strength and Applied Stress Analysis” (McGraw-Hill, New York, 1977) p.27.
Hewlett-Packard Company, “HP-25 Application Programs” (1975) p.87.
A. S. Argon andM. M. Salama,Phil. Mag. 36 (1977) 1217.
A. Priori, L. Nicolais, andA. T. Di Benedetto,J. Mater. Sci. 18 (1983) 1466.
Y. Sato,Kobunshi Kagaka 23 (1966) 69.
J. Miltz, A. T. Di Benedetto andS. Petrie,J. Mater. Sci. 13 (1978) 1427.
G. P. Marshall, L. E. Culver andJ. G. Williams,Proc. Roy. Soc. A 319 (1970) 165.
J. G. Williams, G. P. Marshall, I. Graham andE. L. Zichy,Pure Appl. Chem. 39 (1974) 275.
J. G. Williams andG. P. Marshall,Proc. Roy. Soc. A 342 (1975) 55.
E. J. Kramer andR. A. Bubeck,J. Polym. Sci. Polym. Phys. Ed. 16 (1978) 1195.
M. Iannone, L. Nicolais, L. Nicodemo andA. T. Di Benedetto,J. Mater. Sci. 17 (1982) 81.
L. E. Nielson, “Mechanical Properties of Polymers and Composites”, Vol. I (Marcel Dekker, New York, 1974) p. 87.
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Burchill, P.J., Petrie, S.P. & Stacewicz, R.H. Some observations on the craze growth kinetics of a cross-linked poly(methylmethacrylate). J Mater Sci 20, 967–974 (1985). https://doi.org/10.1007/BF00585741
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DOI: https://doi.org/10.1007/BF00585741