IJMTES – EFFECT OF POROSITY MODELING ON STRESS CONCENTRATION WITH HELP OF FINITE ELEMENT ANALYSIS

Journal Title : International Journal of Modern Trends in Engineering and Science

Paper Title : EFFECT OF POROSITY MODELING ON STRESS CONCENTRATION WITH HELP OF FINITE ELEMENT ANALYSIS 

Author’s Name : Madhavi Jagtap | Atul Magikar  unnamed

Volume 03 Issue 10 2016

ISSN no:  2348-3121

Page no: 36-39

Abstract – Automobile component of Aluminum alloy with high pressure die casting has light weight as well as good strength. But it is casting component and there is possibility of porosity occurrence in the component. There are two types of porosities mainly gas porosity and shrinkage porosity. As per the literature review it is clear that it is difficult to remove the porosity from casting component. Therefore an acceptance criterion is decided for casting components. Ansys 16.2(mechanical simulation software) is used for simulation to see the effect of porosity on stress concentration. The stress results are compared with baseline model i.e. without porosity. In this paper we are modeling the porosity in CAD geometry, which is based on actual porosity observed on the component and mold flow analysis data i.e. casting simulation. For modeling purpose gas porosity taken into consideration as gas porosity has globular shape, and even distributed. Effect of porosity on stress concentration of aluminum casting component is found out. The stress results are compared with baseline model i.e. without porosity model. In literature review all researchers use experimental methods or numerical methods for finding the effect of porosity on stress concentration as well as fatigue life. In this paper effect of porosity on stress concentration and fatigue life is determined with help of modeling porosity in CAD geometry. Porosity modeling location decided is based on mold flow analysis data and actual component inspection. This research is based on the finite elements analysis with using Ansys.  

Keywords— Porosity Modeling, CAD Geometry, Aluminum Die Casting, Finite Element Anlaysis, Stress Concentration

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