Stress Evaluation of effective material properties of composite materials using special FEM

Abstract

In the present paper, a novel method using the special 2-D finite element method and the concept of equivalent homogeneous materials has been employed to evaluate the effective material properties of composites. Special 2-D finite elements containing an internal defects or reinforcements have been well developed in order to greatly simplify the numerical modeling of composites. It can assure the high precision especially in the vicinity of defects or reinforcements in composite materials, Some numerical examples will be provided to demonstrate the validity and versatility of the proposed method by comparing the existing results from other literatures.