Int. J. of Energy Technology and Policy   »   2017 Vol.13, No.1/2

 

 

Title: Springback analysis of L-sectioned bar of linear work-hardening materials under torsional loading

 

Authors: Radha Krishna Lal; J.P. Dwivedi; V.P. Singh; Vikas Kumar Choubey; S.K. Srivastava

 

Addresses:
Department of Mechanical Engineering, Madan Mohan Malaviya University of Technology, Gorakhpur-273010, India
Department of Mechanical Engineering, Indian Institute of Technology, Banaras Hindu University, Varanasi-221005, India
Department of Mechanical Engineering, Indian Institute of Technology, Banaras Hindu University, Varanasi-221005, India
Institute of Engineering and Rural Technology, Engineering Degree Division, Allahabad, India
School of Biochemical Engineering, Indian Institute of Technology, Banaras Hindu University, Varanasi-221005, India

 

Abstract: This paper deals with the torsional springback problems of L-sectioned bars of linear work-hardening materials. Using the deformation theory of plasticity, a numerical scheme based on the finite difference approximation has been proposed. The growth of the elastic-plastic boundary and the resulting stresses while loading, and the torsional springback and the residual stresses after unloading are calculated. The results are verified experimentally with mild steel bars having a L cross-section and the experimental result have been found to agree well with the theoretical results obtained numerically.

 

Keywords: torsional springback; work hardening; elastic-plastic boundary; L-sectioned bars; torsional loading; deformation theory; plasticity; finite difference method; FDM; residual stresses; mild steel bars.

 

DOI: 10.1504/IJETP.2017.10000609

 

Int. J. of Energy Technology and Policy, 2017 Vol.13, No.1/2, pp.123 - 140

 

Available online: 13 Oct 2016

 

 

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