Springback analysis in sheet metal forming by using the Ramberg-Osgood stress-strain relation

被引：3
|
作者：
Lal, R. K. [1 ]
Bhagat, M. K. [2 ]
Dwivedi, J. P. [2 ]
Singh, V. P. [2 ]
Patel, S. K. [2 ]
机构：
[1] Madan Mohan Malaviya Univ Technol, Dept Mech Engn, Gorakhpur 273010, Uttar Pradesh, India
[2] Banaras Hindu Univ, Indian Inst Technol, Dept Mech Engn, Varanasi 221005, Uttar Pradesh, India
来源：
JOURNAL OF APPLIED MECHANICS AND TECHNICAL PHYSICS | 2016年 / 57卷 / 06期
关键词：
strain hardening; sheet metal; Ramberg-Osgood stress-strain relation; TORSION; BARS;
D O I：
10.1134/S0021894416060225
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
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.
引用
收藏
页码：1133 / 1140
页数：8
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