This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Validation of Non-linear Load-Controlled CAE Analyses of Oil-Canning Tests of Hood and Door Assemblies
Technical Paper
2003-01-0603
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Two finite element methodologies for simulating oil-canning tests on closure assemblies are presented. Reflecting the experimental conditions, the simulation methodologies assume load-controlled situations. One methodology uses an implicit finite-element code, namely ABAQUS®, and the other uses an explicit code, LS-DYNA®. It is shown that load-displacement behavior predicted by both the implicit and explicit codes agree well with experimental observations of oil-canning in a hood assembly. The small residual dent depth predictions are in line with experimental observations. The method using the implicit code, however, yields lower residual dent depth than that using the explicit code. Because the absolute values of the residual dent depths are small in the cases examined, more work is needed, using examples involving larger residual dent depth, to clearly distinguish between the two procedures. The analysis performed using the implicit code was significant more efficient (in terms of CPU hours) than the analysis done using the explicit code. The effects of forming strains are qualitatively examined. Forming induced thickness changes and plastic strains may not have a significant effect on oil-canning behavior, but may influence the residual dent depth strongly. Further reinforcement of the predictability of the methodology is demonstrated by an oil-canning simulation, using the implicit code, of a door assembly.
Recommended Content
| Technical Paper | CAE Processing Analysis of Plastic Fenders |
| Technical Paper | Slam Life Assessment Method for Closures Durability |
| Journal Article | A Springback Compensation Study on Chrysler 300C Stamping Panels Using LS-DYNA® |
Authors
Citation
Iyengar, R., Chang, T., Zhao, Y., Singri, M. et al., "Validation of Non-linear Load-Controlled CAE Analyses of Oil-Canning Tests of Hood and Door Assemblies," SAE Technical Paper 2003-01-0603, 2003, https://doi.org/10.4271/2003-01-0603.Also In
References
- Dicello J. A. George R. A. “Design Criteria for the Dent Resistance of Auto Body Panels” SAE Paper No. 740081 1974
- Ni C.-M. “Dent Resistance of Auto Body Panels of Mild Steel, High Strength Steel and Aluminum Alloy” GM Res Labs 1975
- Kojima M. Hayashi Y. “A Study on the Selection of High Strength Steel Sheets for Auto-Body Panels” SAE Paper No. 800369 1980
- Yutori Y. Nomura S. Kokubo I. Ishigaki H. “Study on the Static Dent Resistance” Proceedings of 11 th IDDRG, Les Momoiries Scientifiques Revue Metallurgie April 561 569 1980
- Shi M. F. Meuleman D. J. et al. “Prestrain Effects on Static Dent Resistance of Automotive Steels” SAE Paper No. 910288 1991
- Alaniz C. L. Borchelt J. E. “Study of Parameters that Affect Bosy Panel Performance Predictions” SAE Paper No. 910289 1991
- Shi M. F. Brindza J. A. Michel P. F. et al. “Static and Dynamic Dent Resistance Performance of Automotive Steel Body Panels” SAE Paper No. 970158 1997
- Shih H.-C. Horvath C. D. “Effects of Material Bending and Hardening on Static Dent Resistance,” SAE Paper No, 2003-01-0605 2003
- Alaniz C. L. Seel T. N. “Investigation of Body Panel Stiffness as Predicted by Finite Element Analysis,” SAE Paper No. 900716 1990
- Duni E. Moruzzi P. “The Body Car Panel Instability and Denting under Static Loads,” ABAQUS User's Conference Proceedings 255 272 Hibitt, Karlsson and Sorenson, Pawtucket RI, USA 1996
- ABAQUS Users' Manual, Version 5.8 Hibbitt, Karlsson, and Sorenson, Pawtucket RI, USA 2001
- Leis B. N. Francini R. B. Rudland D. R. Mohan R. “Relating Mechanical Damage Severity to Field Observable Changes in Pipe Shape,” Proceedings of the 12th Biennial Meeting on Pipeline Research, May 1999 EPRG/PRCI Groningen, The Netherlands 1999
- Leis B. N. Francini R. B. Rudland D. R. Mohan R. Olson R. “Pressure-Displacement Behavior of Transmission Pipelines Under Outside Forces - Towards a Serviceability Criterion for Mechanical Damage,” Proceedings of the ISOPE Conference, Montreal, May 1998, Paper. JK-2 Arvada, Colorado, USA 1998
- LS-DYNA User's Manual, Version 960 Livermore Software Technology Corporation Livermore, CA, USA 2001