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A physically based constitutive equation for creep-damaging solids

Journal of Applied Mechanics, Transactions ASME, ISSN: 1528-9036, Vol: 52, Issue: 3, Page: 615-620
1985
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Metrics Details

  • Citations
    11
    • Citation Indexes
      11

Article Description

Uniaxial and multiaxial forms of a constitutive equation, characterizing the creepdamaging behavior of metals at elevated temperatures, are developed based on Dyson’s constrained cavity growth mechanism. The model employs a single scalar internal variable which can be identified with the area fraction of cavitated boundaries. This variable, together with the power law creep model is capable of describing steady creep, tertiary creep, and dilatation arising from the nucleation and growth of grain boundary cavities. © 1985 by ASME.

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