Skip to main content Accessibility help

A Reduced Variable Approach to Relating Creep and Creep Rupture in PMMA

  • G. B. McKenna (a1) and J. M. Crissman (a1)


Creep and creep rupture of PMMA at high stresses have been characterized and found to be relatable by use of reduced variables, it is shown that when the creep compliances can be correlated by a superposition principle for which the vertical shift is the ratio of the applied stress to a reference stress and when strain at failure is a constant, a commonly used failure criterion (that the product of the strain rate at failure and the time to failure is constant) becomes valid. The reduced variables approach is found to apply to two greatly different thermal histories. Consistent with the concept of physical aging, the response of a quenched sample is simply shifted along the log time axis to shorter times relative to the response of the aged sample.



Hide All
1. Coleman, B. D., J. Appl. Phys., 29, 968 (1958).
2. Zhurkov, S. N., Int. J. Fract. Mech., 1, 311 (1965).
3. Tobolsky, A. and Eyring, H., J. Chem. Phys., 11, 125 (1943).
4. Matsuoka, S., Aloisio, S. J., and Bair, H. E., J. Appl. Phys., 44, 4265 (1973).
5. Marin, J., Pao, Y.-H., and Cuff, G., Trans. ASME, A-19, 705 (1950).
6. Struik, L. C. E., Polymer 21, 962 (1980).
7. Struik, L. C. E., Physical Aging in Amorphous Polymers and Other Materials, Elesevier, Amsterdam, (1978), see page 74.
8. Menges, G. and Schmidt, H., Plastics and Polymers, Feb. 1970, p. 13.
9. McKenna, G. B. and Penn, R. W., Polymer, 21, 213 (1980).
10. Hertzberg, R. W. and Manson, J. A., Fatigue of Engineering Plastics, Academic Press, New York (1980), see page 68.
11. Bernstein, B. and Shokooh, A., Rheology, J., 24, 189 (1980).
12. Kovacs, A. J., Stratton, R. A., and Ferry, J. D., J. Phys. Chem., 67, 152 (1963).
13. Kramer, E. J. and Hart, E. W., Polymer, 25, 1667 (1984).
14. Kanninen, M. F. and Popelar, C. H., Advanced Fracture Mechanics, Oxford University Press, New York (1985), see page 477, eqn. (7.3–11).
15. Ref. 7, page 71.
16. Ref. 7, page 38.
17. Reed, B. E. and Dean, G. D., Polymer, 25, 1679 (1984).
18. Beaumont, P. W. R. and Young, R. J., J. Matls. Sci., 10, 1334 (1975).
19. Young, R. J., and Beaumont, P. W. R., Polymer, 17, 717 (1976).

A Reduced Variable Approach to Relating Creep and Creep Rupture in PMMA

  • G. B. McKenna (a1) and J. M. Crissman (a1)


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed