Open AccessNon-linear analysis of laminated metal matrix composites by an integrated micro/macro-mechanical model
Author(s) -
Antonio Ávila,
Tamma Kumar Krishina
Publication year - 1999
Publication title -
revista brasileira de ciências mecânicas
Language(s) - English
Resource type - Journals
ISSN - 0100-7386
DOI - 10.1590/s0100-73861999000400006
Subject(s) - homogenization (climate) , viscoplasticity , materials science , composite material , macro , constitutive equation , micromechanics , linear elasticity , finite element method , matrix (chemical analysis) , elastic modulus , structural engineering , composite number , computer science , engineering , programming language , biodiversity , ecology , biology
The present paper describes an integrated micro/macro mechanical study of the elastic-viscoplastic behavior of unidirectional metal matrix composites (MMC). The micromechanical analysis of the elastic moduli is based on the Composites Cylinder Assemblage model (CCA) with comparisons also draw with a Representative Unit Cell (RUC) technique. These "homogenization" techniques are later incorporated into the Vanishing Fiber Diameter (VFD) model and a new formulation is proposed. The concept of a smeared element procedure is employed in conjunction with two different versions of the Bodner and Partom elastic-viscoplastic constitutive model for the associated macroscopic analysis. The formulations developed are also compared against experimental and analytical results available in the literature