A multiscale model for predicting damage evolution in heterogeneous viscoelastic media

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Title: A multiscale model for predicting damage evolution in heterogeneous viscoelastic media
Author: Searcy, Chad Randall
Abstract: A multiple scale theory is developed for the prediction of damage evolution in heterogeneous viscoelastic media . Asymptotic expansions of the field variables are used to derive a global scale viscoelastic constitutive equation that includes the effects of local scale damage . Damage , in the form discrete cracks , is allowed to grow according to a micromechanically -based viscoelastic traction -displacement law . Finite element formulations have been developed for both the global and local scale problems . These formulations have been implemented into a two -scale computational model Numerical results are given for several example problems in order to demonstrate the effectiveness of the technique .
URI: http : / /hdl .handle .net /1969 .1 /1251
Date: 2004-11-15

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A multiscale model for predicting damage evolution in heterogeneous viscoelastic media. Available electronically from http : / /hdl .handle .net /1969 .1 /1251 .

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