The present study proposes a homogenization technique for the estimation of the overall behavior of composite materials characterized by a nonlinear behavior. A mixed nonuniform TFA procedure is proposed in order to study the mechanical response of periodic composites characterized by linear isotropic hardening plasticity. As the case of periodic composites is considered, the homogenization is performed on a repetitive unit cell that plays the equivalent role of representative volume element for random media. A numerical application is performed to test the effectiveness of the proposed technique. In particular, the homogenization results are compared with the ones carried out by micromechanical nonlinear finite element analyses.
Covezzi, F., DE MIRANDA, S., Marfia, S., Sacco, E. (2016). A homogenization technique for elasto-plastic composites. National Technical University of Athens [10.7712/100016.1961.11479].
A homogenization technique for elasto-plastic composites
COVEZZI, FEDERICA;DE MIRANDA, STEFANO;
2016
Abstract
The present study proposes a homogenization technique for the estimation of the overall behavior of composite materials characterized by a nonlinear behavior. A mixed nonuniform TFA procedure is proposed in order to study the mechanical response of periodic composites characterized by linear isotropic hardening plasticity. As the case of periodic composites is considered, the homogenization is performed on a repetitive unit cell that plays the equivalent role of representative volume element for random media. A numerical application is performed to test the effectiveness of the proposed technique. In particular, the homogenization results are compared with the ones carried out by micromechanical nonlinear finite element analyses.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
