This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Springback: How to Improve its Early Prediction Instead of Late Stamping Dies Rework
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 02, 2012 by SAE International in United States
Annotation ability available
The globalization, rivalry and the technologies have changed the auto industry in a battlefield, where companies are fighting for quality, reliability, the reduction of development cycle and also cost.
The manufacturing process of car body is the major responsible for time consumption, labor and investment. One of the bottleneck solutions is to use computational simulations during design phase in order to minimize the reworks. The car body is composed by several stamped parts, and its design requires a series of parallel activities, and one of the fundamental information is the accurate magnitude of spring back distortions, but due to the complexity of the phenomenon, the results are not so accurate as desired.
The explored literatures are recommending numeric methods to simulate material's behavior and also the spring back phenomenon. In this paper, the goal is to compare several simulation parameters' performance emphasizing shell elements, meshing and material properties with the real results. The methodology to be used will be a comparison between simulation results, obtained by FEM and real ones. This study will lead us to identify which simulation parameters are more accurate and appropriate for predicting stamped panels spring back.
|Technical Paper||Denting Simulation and Verification|
|Technical Paper||Integrated CAE Methods for Perceived Quality Assurance of Vehicle Outer Panels|
CitationSakuramoto, C., "Springback: How to Improve its Early Prediction Instead of Late Stamping Dies Rework," SAE Technical Paper 2012-36-0373, 2012, https://doi.org/10.4271/2012-36-0373.
- Belytschko, T. Lin, J. Tsay, C.S. “Explicit Algorithms for Nonlinear Dynamics of Shells” Comp. Meth. Appl. Mech. Eng. 42 225 251 1984
- Belytschko, T. Tsay, C.S. “Explicit Algorithms for Nonlinear Dynamics of Shells” AMD-ASME 48 209 231 1981
- Belytschko, T. Wong, B.L. Chiang, H.Y. “Improvements in Low-Order Shell Elements for Explicit Transient Analysis” Analytical and Computational Models of Shells Noor, A.K. Belytschko, T. Simo, J. ASME 3 383 398 1989
- Belytschko, T. Wong, B.L. Chiang, H.Y. “Advances in One-Point Quadrature Shell Elements” Comp. Meths. App. Mech. Eng 96 93 107 1992
- Bergan, P. G. “Solution algorithms for non-linear structural problems” Computers structures 12 497 509 1980
- Bergan, P. G. Soreide, T. “Solution of large displacement and instability problems using the current stiffness parameter” Finite elements in non-linear mechanics 647 669 Trondheim Tapir Press 1978
- Galbraibth, C. Thomas, D. Finn, M. 2003 “Manufacturing Simulation of an Automotive Hood Assembly” 4th European LS-DYNA Users Conference 44
- Galbrait, P.C Finn, M.J. MacEwen, S.R. Carr, A.R. Gatenby, K.M. Lin, T.L. Cliford, G.A. Hallquist, J.O. Stillman, D. “Evaluation of an LS-DYNA3D model for deep-drawing of aluminium sheets” Int. Conf. on FE-simulation of 3-D sheet metal forming processes in automotive industry 441 466 Zürich VDI Verlag 1991
- Hallquist, J.O. Benson, D.J. Goudreau, G.L. “Implementation of a Modified Hughes-Liu Shell into a Fully Vectorized Explicit Finite Element Code” Proceedings of the International Symposium on Finite Element Methods for Nonlinear Problems University of Trondheim Trondheim, Norway 1985
- Hallquist, J.O. Stillman, D.W. Schweizerhof, K. Weimar, K. “Improving standard shell elements, friction models and contact algorithms fort he efficient solution of sheet metal forming problems with LS-DYNA3D” Int. Conf. on FE-simulation of 3-D sheet metal forming processes in automotive industryi 499 515 Zürich VDI Verlag 1991
- Hughes, T.J.R. Generalization of Selective Integration Procedures to Anisotropic and Nonlinear Media Int. J. Numer. Meth. Eng. 15 9
- Hosford, W.F. Caddell, R.M. 1993 “Metal Forming: Mechanics and Metallurgy” Prentice Hall NJ 364
- Hughes, T.J.R. Carnoy, E. “Nonlinear Finite Element Shell Formulation Accounting for Large Membrane Strains” AMD-ASME 48 193 208 1981
- Hughes, T.J.R. Liu, W.K. “Nonlinear Finite Element Analysis of Shells: Part I. Two-Dimensional Shells” Comp. Meths. Appl. Mechs 27 167 181 1981
- Hughes, T.J.R. Liu, W.K. “Nonlinear Finite Element Analysis of Shells: Part II. Three-Dimensional Shells” Comp. Meths. Appl. Mechs 27 331 362 1981
- Hughes, T.J.R. Liu, W.K. Levit, I. “Nonlinear Dynamics Finite Element Analysis of shells” Nonlinear Finite Element Analysis in Struct. Mech. Wunderlich, W. Stein, E. Bathe, K.J. Springer-Verlag Berlin 151 168 1981
- Jonkers, B. 2006 “Simulation of the Robot Roller Hemming Process’ Monograph presented for MsC degree at University Twente Neederlands
- MARCIANIK, Z. J.L. DUNCAN, J.L. HU, S.J. “Mechanics of Sheet Metal Forming” Butterworth-Heinemann London 2nd 200
- Ma, N. Umezu, Y. Watanabe, Y. Ogawa, T. “Springback prediction by Yoshida-Uemori Model and Compensation of tool surface using JSTAMP” NUMISHEET 2008 Interlaken, Switzerland
- Mattiasson, K. Bernspåmg, L. Honecker, A. Schedin, E. Hammam, T. Melander, A. “On the use of explicit time integration in finite element simulation of industrial sheet forming processes” Int. Conf. on FE-simulation of 3-D sheet metal forming processes in automotive industry 479 497 Zürich VDI Verlag 1991
- Neves, R.C. Sakuramoto, C.Y. Stamping Force Calculated by FEM code with Shell elements 2005 SAE - Congress
- Nielsen, K. B. Bränberg, N. Nilsson, L. “Sheet metal forming simulation using explicit finite element methods” Structural Dynamics - EURODYN'93 625 633 Balkema - Rotterdam 1993
- Thomas, D.N. Galbraibth, P.C. Bull, M.J. Finn, M.J. 2002 “Prediction of springback and final shape in stamped automotive assemblies: Comparison of Finite Element Predictions and Experiments” Proceedings of IBEC 2002
- Yoshida, F. Uemori, T. “A model of large-strain cyclic plasticity and its application to springback simulation International Journal of Mechanical Sciences 45 2003 1687 1702