Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : November 23, 2018 - November 25, 2018
In this paper, we propose a substitution approach for de-coupled multiscale analysis of composite plates with in-plane periodic heterogeneity, which includes nonlinear properties. An in-plane periodic local structure which is called in-plane unit structure (IPUS) is extracted from the composite plate. Then a numerical plate testing for the IPUS is performed and the relationship between macroscopic resultant stress and generalized strains is obtained. We postulate that an equivalent homogeneous laminated structure can be substituted by the original macroscopic composite plate. Using the mesoscopic substitution model of this homogeneous laminated structure, the material properties of each layer which provide the equivalent behaviors to the ones of the original IPUS are identified by an optimization method. To validate the proposed approach, we compare the analysis results of the macroscopic substitution model with the ones of the original composite plate.
