Effect of Specimen Dimensions on Yield Shear Stress in Torsion Testing of AISI 1020 Steel by using Taguchi with GRA |
Author(s): |
| Rajkumar D. Patil , DKTE'S TEI Ichalkaranji; Uttam S. Bongarde, DKTE'S TEI Ichalkaranji; Vishal R. Balwan, DKTE'S TEI Ichalkaranji |
Keywords: |
| Torsion Testing, Grey Relational Analysis; Yield Shear Stress; Taguchi Method; Nadai Method, smaller-the-better |
Abstract |
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This current research work aims at studying the influence of solid specimen dimensions such as total length, useful length, outer diameter and fillet radius on yield shear stress of mild steel (AISI 1020) in torsion testing. L9 orthogonal array was selected for design of experiments. Three output parameters of torsion testing such as modulus of rigidity, yield shear stress and ultimate shear stress were calculated by using Nadai method. Single objective optimization was done by using Taguchi method. Further effort was made to simultaneously optimize the specimen dimensions using grey relational analysis (GRA). It was found that, yield shear stress was minimum for the specimen dimensions with total length 130 mm, useful length 50 mm, outer diameter 8 mm and fillet radius 3 mm. The confirmation test was also carried out to check the GRA results. |
Other Details |
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Paper ID: IJSRDV5I90302 Published in: Volume : 5, Issue : 9 Publication Date: 01/12/2017 Page(s): 459-463 |
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