Title of article :
Torsional Springback Analysis in Thin Tubes with Non-linear Work Hardening
Author/Authors :
Choubey, Vikas Kumar Institute of Engineering Rural Technology - Engineering Degree Division, India , Gangwar, Mayank Motilal Nehru National Institute of Technology - Department of Mechanical Engineering, India , Dwivedi, J.P. Banaras Hindu University - Institute of Technology - Department of Mechanical Engineering, India
Abstract :
A theoretical analysis of the springback of thin tubular sections of non linear work-hardening materials under torsional loading has been carried out. The non-linear behavior of the material is approximated by using Modified Ludwik type stress-strain relation. The theoretical analysis is supported by experimental results for different tubular section viz. square, triangular and rectangular sections of different thicknesses. Finally analytical generalized expressions relating angle of twist to twisting moment and residual/ springback angle of twist per unit length for thin tubular bars under plastic torsion are obtained in non-dimensionalized form. A comparison between the results obtained for thin tubes on non-linear and linear work-hardening material loaded under torsion is also made.
Keywords :
Metal forming , Springback , Torsional springback , Thin tubes , Non , linear work hardening materials
Journal title :
Journal of Mechanical Engineering
Journal title :
Journal of Mechanical Engineering
