A self-consistent relation for the time-dependent creep of polycrystals
type: Item
instance of: scholarly article
title: A self-consistent relation for the time-dependent creep of polycrystals
zbMATH Open document ID: 0783.73025
DOI: 10.1016/0749-6419(93)90028-O
author: George J. Weng
published in: International Journal of Plasticity
publication date: 1993-08-24T00:00:00Z
review text: The paper is directed towards development of a self-consistent relation for the time-dependent creep of a polycrystal. The derivation makes use of a linear viscoelastic comparison material, under which the constraint power of the creeping matrix is found to decrease exponentially with the ratio of the creep strain to the elastic strain. It is shown that the accuracy of the traditional elastic-constraint model is better than what is initially thought. The theory suggests that grain-compatability, instead of stress-equilibrium, is the more dominant factor governing the grain-boundary condition during the steady-state process.
reviewed by: K. T. S. Iyengar
Mathematics Subject Classification ID: 74C99
Mathematics Subject Classification ID: 74D05
Mathematics Subject Classification ID: 74D10
zbMATH DE Number: 370471
zbMATH Keywords: linear viscoelastic material
zbMATH Keywords: creeping matrix
zbMATH Keywords: creep strain
zbMATH Keywords: elastic strain
zbMATH Keywords: grain-compatability
zbMATH Keywords: steady-state process
MaRDI profile type: Publication
full work available at URL: 0749-6419(93)90028-o
OpenAlex ID: W1988156290
description: scientific article; zbMATH DE number 370471