Publication de 6 numéros par an
ISSN Imprimer: 1543-1649
ISSN En ligne: 1940-4352
Indexed in
AN IMPROVED HOMOGENIZATION OF INELASTIC COMPOSITES
RÉSUMÉ
Inelastic modeling of composite materials is typically a very time-consuming task, even when the microscale material properties are taken into account in a simplified way, e.g., by a homogenization technique. In this paper a twofold improvement in computational homogenization that leads to more efficient and reliable analysis of elasticplastic metal matrix composites is presented. First, possibility of determination of the overall inelastic material properties on the basis of only one representative volume element (RVE) is verified. Second, an a posteriori homogenization error estimate is adopted for elasticplastic problems in order to control modeling accuracy and determine whether a single RVE analysis is in particular case a reasonable trade-off between accuracy and efficiency. Selected numerical experiments validate the proposed modifications.