Simulation of boron and carbon fiber composite characteristics of the elasticity

Abstract

The use of hybrid fiber-reinforced polymer composites (FRP) opens up wide possibilities for creating structures that are most suitable for different operating conditions. The modelling of a multilayer FRP structure is the most important stage in the creation and manufacture of FRP products since the FRP structure determines the entire complex of elastic, strength and other properties. This paper proposes a method for the theoretical prediction of anisotropic elastic characteristics of material equivalent to a given FRP. A technique for calculating the stiffness coefficients of a homogeneous anisotropic material equivalent to a hybrid composite material having a magnesium matrix reinforced with boron and carbon fibers has been developed and tested in ANSYS. This paper has found that the results of the finite element analysis essentially depend on the dimension of the mesh, and it is necessary to use a mesh with a number of nodes exceeding N = 1·105 to obtain sufficiently accurate calculated values of the elasticity coefficients.