1IV SEM, M-Tech Manufacturing Science and Engineering, Department of Mechanical Engineering, Ghousia College Of Engineering, Ramanagara, India
2Assistant Professor, Department of Mechanical Engineering, Ghousia College Of Engineering, Ramanagara, India
Online published on 21 November, 2017.
Spring back is the phenomenon which is a drawback with mechanical structures. This happens due to stress relaxation during loading and unloading cycles which is better explained by Bauschinger effect. Due to the advances in the analysis techniques, the parameters influencing this spring back is analyzed in the present work.
Initially problem under plate bending considered and spring back deformation is estimated as 0.0069 mm based on deformation for loading and unloading conditions. The geometrical configurations are built for the specified geometry and contact pairs are created for meshed object based on two dimensional analysis using planar elements which helps in faster execution along with better representation for stress and contact pressure results. Further axis symmetric bending is done with various design parameters to find the influence. Increase in the plate thickness shows reduced residual stress and contact pressure, but springback is observed to be more. Similarly the fillet radius of bent is increasing residual stress, contact pressure, but reducing the spring back. Even strain hardening parameter of plastic modulus or tangent modulus also influences the spring back.
Spring back, Bauschinger effect, Vonmises stress, Axi-symmetry
