A Model for Predicting the Multiscale Crack Growth Due to an Impact in Heterogeneous Viscoelastic Solids

Authors

Flavio V. Souza, University of Nebraska - LincolnFollow
David H. Allen, University of Nebraska - LincolnFollow

Date of this Version

3-2009

Comments

Published in Mechanics of Composite Materials 45:2 (2009), pp. 145–152. Copyright © 2009 Springer Science+Business Media, Inc. Used by permission. Russian translation published in Mekhanika Kompozitnykh Materialov 45:2 (March-April 2009), pp. 211-222.

Abstract

A two-scale model for predicting the multiple crack growth in viscoelastic solids due to an impact is presented. The cracks are considered only at the local scale through the use of a micromechanical viscoelastic cohesive zone model. The multiscale model has been implemented in a finite-element code. In order to minimize the computation time, the local finite-element meshes are solved in parallel by multiple processors. An example problem is given in order to demonstrate the capabilities of the model.