Simulation of Elastic Modulus and Poisson's Ratio of Spheroidal Graphite Cast Iron

抄録

It has been well known that the elastic constants and breaking strength of the spheroidal graphite cast iron are larger than those of the flake graphite cast iron, etc. But, the quantitative explanation on that has not been given. In this paper, the theoretical method to estimate stochastically the elastic modulus and Poisson's ratio of the spheroidal graphite cast iron is investigated by using the finite element method and the Monte Carlo method. The simulation model of the cast iron is composed of the elements (a) and (b), (a) being made of a matrix only, (b) of an element of the graphite grain enclosed by a matrix. These elements are disposed in the composed model by using the random unmbers and the finite element method on two-dimensional problems is used to analyze the deformation behavior of this model