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Statistical Analysis of the Effect of Notches and Strain Rate on the Tensile Properties of Welded 6061 Aluminum Alloy

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Abstract

This paper emphasizes on the effect of notches and crosshead speed on yield strength and ultimate tensile strength of a TIG welded butt joint. In this experimental study 120 × 30 × 3.2 mm3 welded double edge notched tensile specimens with four notch radii have been tested under uni-axial tensile loading at different crosshead speed. In the current work, the analysis of variance has been performed at 95 and 99 % confidence level to identify the significance of crosshead speed and notch radius in effecting the tensile properties. This study indicates that the crosshead speed is the main parameter which has the highest influence on the tensile properties of the welded components than notch. An attempt has been made to develop an empirical relationship to predict the tensile properties of TIG-welded 6061 aluminum alloy joints using non-linear regression analysis.

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Acknowledgments

The authors are thankful to the Dean, College of Technology, GBPUA&T Pantnagar, for providing all the necessary facilities for carrying out this investigation. The authors are also grateful to Dr. V. K. Singh, Professor, Mechanical Engineering Department, for his support in fabrication work.

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Authors and Affiliations

  1. Mechanical Engineering Department, G.B. Pant University of Agriculture and Technology, Pantnagar, UK, 263145, India

    Sonika Chauhan, Ravinder Singh & Prakash Chandra Gope

  2. Homi Bhabha National Institute, Anushaktinagar, Mumbai, Maharashtra, 400094, India

    Sonika Chauhan

Authors
  1. Sonika Chauhan
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  2. Ravinder Singh
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  3. Prakash Chandra Gope
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Correspondence to Sonika Chauhan.

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Chauhan, S., Singh, R. & Gope, P.C. Statistical Analysis of the Effect of Notches and Strain Rate on the Tensile Properties of Welded 6061 Aluminum Alloy. Trans Indian Inst Met 69, 1959–1967 (2016). https://doi.org/10.1007/s12666-016-0855-2

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  • DOI: https://doi.org/10.1007/s12666-016-0855-2

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