A dislocation density based constitutive model for cyclic deformation

Y. Estrin, H. Braasch, Y. Brechet

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Abstract

A new constitutive model describing material response to cyclic loading is presented. The model includes dislocation densities as internal variables characterizing the microstructural state of the material. In the formulation of the constitutive equations, the dislocation density evolution resulting from interactions between dislocations in channel-like dislocation patterns is considered. The capabilities of the model are demonstrated for INCONEL 738 LC and Alloy 800H.

Original languageEnglish
Pages (from-to)441-447
Number of pages7
JournalJournal of Engineering Materials and Technology, Transactions of the ASME
Volume118
Issue number4
DOIs
Publication statusPublished - Oct 1996
Externally publishedYes

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