Comparison of Numerical Analysis of Stress-Strain States of Cast Iron with Vermicular Graphite Shape and Globular Graphite Shape

Abstract

Method of final elements is highly effective modern numerical method for solving technical and scientific tasks, which is nowadays more and more used. The report deals with comparison of analysis of stress conditions on microstructure of cast iron with vermicular graphite and with cast iron type with globular graphite. Briefly describes their chemical composition, mechanical properties and structure that we will serve us as input parameters for the creation of computational modeling and numerical analysis. Model of structure for the computer simulation was created in two-dimensional field by linear triangular elements for both types of graphitic cast iron. The size of elements was determined based on sensitivity analysis. According to the real structure of cast iron with vermicular shape of graphite and cast iron with globular graphite will be created model from which will be performed numerical analysis of voltage-strain states by finite element method – FEM software system ADINA 8.8.0. This calculation program helps to solve a very difficult task and has the advantage that the generated model can reflect very well the actual geometry of the object.