On the Springback Analysis of Sheet Metal Forming

판재성형의 탄성복원해석에 대하여

  • Published : 1997.10.01

Abstract

The analysis of the springback is done based on the stress of sheet after forming. Therfore, it is important to get the accurate stress from forming analysis. In this study, some parameters that influence on the accuracy of the springback estimation are investigated. Discretization of sheet and tools, choice of penalty constant and damping in contact treatment, and tool speed scaling are chosen as parameters. As a numerical example, the 2D draw bending benchmark problem of the NUMISHEET'93 is used. Also, the springback results of the s-rail benchmark problem of the NUMISHEET'96 are presented.

Keywords

References

  1. NUMIFORM'95 Simulation of Springback in Sheet Metal Forming K. Mattiasson;A. Strange;P. Thilderkvist;A. Samuelsson
  2. NUMISHEET'93 proceeding Shan-Fu Shen;Paul R. Dawson
  3. NUMISHEET'96 proceeding J.K. Lee;G.L. Kinzel;R.H. Wagoner
  4. LS-DYNA3D manual LSTC
  5. HPC ASIA proceeding The parallelization of Implicit Code for Springback Analysis C.S. Kim;W.J. Chung;C.Y. Lee
  6. NUMISHEET'96 proceeding A Study on Dynamic Effects of Dynamic Explicit FEM in Sheet Metal Forming Analysis W.J. Chung;J.W. Cho;T. Belytcshko
  7. NUMISHEET'96 proceeding J.K. Lee;G. L. Kinzel;R.H. Wagoner