Effect of Elastic Modulus on Maximum Displacement Response of Truss Structure

Abstract

Dynamic stress and displacement of truss are directly related to the safety of truss in case of impact loading of the truss structure. Elastic modulus is an important parameter which has an effect on the dynamic stress and displacement in truss structure. Analyzing the effect of elastic modulus on dynamic mechanics can provide the design criterion for truss structure. Here, a 3D simulated method on the basis of finite element model (FEM) was proposed to analyze the dynamic stress and displacement of the truss structure under impact loading. By means of the simulated method, the effect of elastic modulus on the maximum displacement was investigated. Via exporting the corresponding mechanical response, the maximum displacements are plotted in one figure to analyze the effect of elastic modulus on dynamic mechanical response. The maximum displacement could increase when the elastic modulus is raising. Meanwhile, the maximum displacement increases with the elastic modulus in nonlinear pattern.