Unified creep-plasticity model for structural metals at high temperature. [LMFBR]

Abstract

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A Coupled Creep Plasticity Model for Residual Stress Relaxation of a Shot Peened Nickel-Base Superalloy

“…A number of modeling approaches have been developed to account for the combined contributions of plasticity and creep [18][19][20][25][26][27][28][29]. The trend has been to incorporate plasticity and creep into a single unified inelastic model.…”

Modeling Stress Strain Relationships and Predicting Failure Probabilities For Graphite Core Components

“…The incremental non-linear inelastic constitutive model also ignores rate effects and assumes that any time dependent phenomenon exhibited by nuclear graphite used in high temperature service conditions can be captured using other modeling techniques. The reader is directed to the viscoplastic models of Bodner and Partom (1975), Chaboche (1977) and Robinson (1978) for rate dependent modeling techniques.…”

A mathematical representation of the multiaxial Bauschinger effect

“…etc. Many other unified cyclic viscoplastic theories were also under development in the same period, using similar concepts, attempting to reconcile cyclic plasticity and creep flow (e.g., refs [42][43][44][45][46]. One advantage of my own approach, mainly based on the very simple structure of the A-F rule, was that it was simple to integrate in closed form (for proportional cyclic conditions) and easily incorporated in a more fundamental thermodynamic framework.…”