DOI: 10.5176/2251-1857_M312.33
Authors: Tatsuya Otomo,Kazumichi Shimizu
Abstract:
In previous studies has been investigated mechanical by using finite element method. The purpose of this study is an analysis of a single collision in erosion wear.
I created a three dimensional model by using LS-DYNA software for structural analysis. I was analyzed in a single collision by three dimensional models. Targets are SS400 and spheroidal graphite cast iron.
Analysis conditions are shown below in SS400. Impact velocity of the particles was set to 20m/s of the measured value. The contact time of the collision is 0.01ms. The dimensions of the impact material are 5 × 5 × 2mm. Impact material is an SS400. Impact particle was assumed 700μm spherical steel shot. Impact angle was analyzed up to 90deg. from 10deg... From the results of the analysis, I have examined the Impact angle dependence of erosion wear in SS400.
Analysis conditions are shown below in spheroidal graphite cast iron. Impact velocity of the particles was set to 20m/s of the measured value. The contact time of the collision is 0.01ms. The dimensions of the impact material are 1 × 1 × 1mm. Impact material is a spheroidal graphite cast iron. Spheroidal graphite cast iron was composed of spherical graphite and base organization. Base organization was assumed SS400. Impact particle was used 700μm spherical steel shot. Impact angle was analyzed up to 90deg. from 10deg.. From the results of the analysis, I have examined the Impact angle dependence of erosion wear in spheroidal graphite cast iron.
As a result, Mises stress of SS400 was the largest impact angle 30deg. Mises stress of spheroidal ductile iron was the largest impact angle 60deg. I was able to validate the mechanical impact angle dependence of spheroidal graphite cast iron and SS400 from stress analysis. In addition, the results of the analysis showed that spheroidal graphite could interfere with the distribution of stress.
keyword: wear; erosion; FEM; SS400; Spheroidal ductile cast iron; Impact angle; Mises stress; Stress interference
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