DefinePK

Abstract

Improving the accuracy of FEA on composite material parts to reduce weight is an important issue in industry and academia. The mechanical properties of composite materials have generally been studied from a microscopic perspective. The properties of relatively large or complicated models need to be identified on a macroscopic scale. However, only a few studies were performed on an inverse method that presents a plastic region as a simple model. This study proposed a method to reduce errors with respect to experimental data by presenting the mechanical properties using the inverse method and performing parameter optimization for the inverse method to realize the axial displacement of GFRP tensile specimens by FEA.