This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Advances in One Step Solvers for Formability Analysisat Styling, Product and Process Design Stages of Automotive Panels
Annotation ability available
Sector:
Language:
English
Abstract
The paper provides an overview of recent advances and applications of One Step FEM solvers in the automotive industry. The advances include, among other things,
-
1.
Enhanced pre-processing (e.g. i. Integration with CAD Systems, ii. Automeshing),
-
2.
Die processing geared functions (e.g. i. Automatic tipping, ii. Autoboundary conditions; to reduce effort in selecting the boundary conditions for achievement of a specific target strain in the panel),
-
3.
More robust mechanics and realistic modeling of process (e.g. i. Autobending to accommodate membrane as well as bending and unbending effects, ii. Passive force formulation for a more realistic modeling of the external forces required to form the part, as well as iii. Curved binder capability; for more accurate prediction of binder effects), and
-
4.
Enhanced post-processing and interpretation of results (e.g. i. Residual stresses, ii. Advanced FLD manipulation, iii. Edge movement on curved binder)
The paper will focus on the mechanics issues and starts by discussing the role of One Step versus Incremental Solvers for panel design and development. The paper will then illustrate the application of some advanced capabilities of the One Step solvers, and FAST_FORM3D in particular, at Styling, Product and Process Design stages, and elaborate on their implications on the simulation accuracy. Many of the elements discussed in this work form the basis of an interactive draw die development system, currently under development.
Recommended Content
Technical Paper | Common Mesh Approach for Automotive Vehicle CAE Analysis |
Technical Paper | Simulation of Fatigue Crack Propagation in 3D Shell Structures |
Technical Paper | A Mathematical Model for Exhaust System Vibrations Caused by Road Surface Inputs |
Authors
Topic
Citation
Rvachov, M., Kolodziejski, J., and Karima, M., "Advances in One Step Solvers for Formability Analysisat Styling, Product and Process Design Stages of Automotive Panels," SAE Technical Paper 982335, 1998, https://doi.org/10.4271/982335.Also In
References
- Evert, G. Faucher, G. “Formability Simulation in Design” Advanced Body Concept & Development Stuttgart, Germany 12 18 IBEC '97
- Walker. T. Karima, M. “On the Role of Binder Shape for Metal Stampings” SAE paper 940940 1994
- Gerdeen, J.C. Chen, P. “Geometric Mapping Method of Computer Modeling of Sheet Metal Forming” Numiform'89
- Chung, K. Lee, D. “Computer Aided Analysis of Sheet Material Forming Processes, Advanced Technology of Plasticity 1 660 665 1984
- Batoz, J.L. Gou, Y.Q. Detraux, J.M. “An Inverse Finite Element Procedure to Estimate the Large Plastic Strain in Sheet Metal Forming” 3rd International Conference on Technology of Plasticity Kyoto July 1-6 1990
- Duroux, P. de Smet, G. Batoz, J.L. “Influence of the Blank Contour on the Thickness Variation in Sheet Metal Forming Advanced Technology of Plasticity 131 138 1987
- Liu, S.D. Karima, M. “A One Step Finite Element Approach for Product Design of Sheet Metal Stampings” 497 502 Numisheet'92
- Liu, S.D. “Application of One Step FEM in Multi-Stage Stamping Process Designs” Advanced Technologies and Processes 19 40 46 IBEC '95
- Barlet, O. Batoz, J.L. Guo, Y.Q. Mercier, F. Naceur, H. Knopf-Lenoir, C. “Optimum Design of Blank Contours using the Inverse Approach and a Mathematical Programming Technique” 178 185 NUMISHEET 96
- Pillinger, I. Hartley, P. Strugess, C.E.N. Rowe, G.W. “A New Linearized Expression for Strain Increment in Finite-Element Analyses of Deformations Involving Finite Rotation” Int.J.Mech.Sci. 28 5 253 262 1986
- Luet, D. Duval, J.L. Di Pasquale, E. Rigaud, V. Le Roch, Y. “Quality Function Approach to Design and Optimization of Stamping Process: Application to an Industrial Case” SAE paper 980442 1998
- Dutton, T. Walton, T. Sheh, M.Y. Walczak, J.E. “A Demonstration” Body Assembly & Manufacturing 132 138 IBEC '95
- Dutton, T. OveArup & Partners 26 29 Sheet Metal Industries '97