Springback analysis in sheet metal forming by using the Ramberg–Osgood stress–strain relation
- Authors: Lal R.K.1, Bhagat M.K.1, Dwivedi J.P.1, Singh V.P.1, Patel S.K.1
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Affiliations:
- Department of Mechanical Engineering
- Issue: Vol 57, No 6 (2016)
- Pages: 1133-1140
- Section: Article
- URL: https://journals.rcsi.science/0021-8944/article/view/159993
- DOI: https://doi.org/10.1134/S0021894416060225
- ID: 159993
Cite item
Abstract
The Ramberg–Osgood stress–strain relation is used to perform a theoretical springback analysis in the problem of bending of a narrow rectangular strip made of a strain-hardening material. The maximum strip thickness is 5 mm, and its length is significantly greater than the thickness. Based on the elasticity and plasticity deformation theory and also on the Tresca and von Mises yield criteria, an expression for the springback ratio is derived. The springback ratio depends on the ratio of the yield stress to Young’s modulus, Poisson’s ratio, strain hardening coefficient, and sheet thickness.
About the authors
R. K. Lal
Department of Mechanical Engineering
Author for correspondence.
Email: rkl.iitbhu@gmail.com
India, Gorakhpur, 273010
M. K. Bhagat
Department of Mechanical Engineering
Email: rkl.iitbhu@gmail.com
India, Varanasi, 221005
J. P. Dwivedi
Department of Mechanical Engineering
Email: rkl.iitbhu@gmail.com
India, Varanasi, 221005
V. P. Singh
Department of Mechanical Engineering
Email: rkl.iitbhu@gmail.com
India, Varanasi, 221005
S. K. Patel
Department of Mechanical Engineering
Email: rkl.iitbhu@gmail.com
India, Varanasi, 221005