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Research Article Open Access

Experimental Investigation on Weld Joint Characterization of Thin Wall Structure Mild Steel Tube at Diverse Loading Condition   

 

Kundan Bharti1,2, L. A. Kumaraswamidhas1,  Dipen Kumar Rajak1,2*,  R. R. Das1

 

1Department of Mining Machinery Engineering, Indian Institute of Technology (ISM), Dhanbad 826004, India

2Advance Research Lab, Indian Institute of Technology (ISM), Dhanbad 826004, India

Adv. Mater. Proc., 2019, 4 (2), AMP1407006

DOI: 10.5185/amp.2019.7006

Publication Date (Web):05 April 2019

Copyright © IAAM-VBRI Press

Abstract


Abstract

This paper aims to investigate the effect of input parameters on plateau stress and specific energy of thin-wall structure circular mild steel (MS) tube. 32 samples of tube have been fabricated in two sets, one is without weld (WOW) and another is with weld (WW), having same dimensions. The tube was made up of available commercial MS (AISI 1010). During compression test the value of plateau stress and specific energy are obtained at varying input parameters and compared the results between WOW and WW tube samples. And its chemical composition verified with the help of Energy-dispersive X-ray spectroscopy test of the welded joint and parent material. Three optimization techniques are used in this study to validate the experimental results namely Taguchi method, Analysis of variance (ANOVA) and Artificial Neural Network (ANN). Taguchi L16 orthogonal array are used to identify the most effective input parameters which affect the energy absorption behaviour. Percentage contribution of individual input parameters analyzed by ANOVA method and also ANN was performed for non-linear mapping of the input and output parameters which are influenced by compression test. Experimental results have been validated with the optimization technique results and found to be in good agreement with them. Copyright © VBRI Press.

Keywords


Mild steel tube, weld joint, energy absorption, plateau stress.