A Fundamental Investigation of Numerical Simulation for Reinforced Plastic Using Viscosity Model and Considering Fiber Orientation

Abstract

This study performs a numerical simulation using a viscoplasticity model and considers internal fiber orientation for fiber reinforced plastics (FRP). The FRP, which the microstructure consists of resin and fiber, has a rate and fiber orientation dependency. However, it is difficult to predict the material parameters on the macro scale. Thus, we perform the material testing and decide the microstructure’s material parameters using the least squared method. Besides, we perform some macro numerical simulations that show the present method’s capabilities for the target material compared with the tensile testing results.