EPJ Web of Conferences 26, 04028 (2012)
https://doi.org/10.1051/epjconf/20122604028

Coupling of plasticity and damage in glass fibre reinforced polymer composites

¹ SINTEF Materials & Chemistry
² University of Oslo, Applied Mathematics and Mechanics

^a e-mail: reidar.joki@sintef.no

Abstract

This study addresses the nonlinear stress-strain response in glass fibre reinforced polymer composite laminates. Loading and unloading of these laminates indicate that the nonlinear response is caused by both damage and plasticity. A user defined material model is implemented in the finite element code LS-DYNA. The damage evolution is based on the Puck failure criterion [1], and the plastic behaviour is based on the quadratic Hill yield criterion for anisotropic materials [2].