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A New Methodology for Improving Accuracy of Structural Analysis of Car Body Parts
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English
Abstract
The Finite Element Analysis (FEA) is widely used in automotive industry for many applications, such as structural analysis, computational fluid dynamics (CFD), vibration behavior and acoustic properties, crashworthiness and, more recently, manufacturing process simulation. For all these FEA applications, accuracy is always a key issue. The analysis accuracy depends mainly on two factors: on one hand the FEA codes and on the other hand the definition of boundary conditions and material properties. Over the years, most FEA codes are well tested for accuracy through numerous benchmarks: therefore breakthroughs in further accuracy improvement from the aspect of FEA codes are difficult to achieve. On the other aspect, there is some room for FEA improvement by means of more accurate definition of material properties. In this paper, a new methodology for improving analysis accuracy by considering thickness variations of the component is proposed and validated using a structural body part. The analysis results show a substantial accuracy improvement in respect to the conventional approach.
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Citation
Valente, F., Li, X., Messina, ., Properzi, M. et al., "A New Methodology for Improving Accuracy of Structural Analysis of Car Body Parts," SAE Technical Paper 982336, 1998, https://doi.org/10.4271/982336.Also In
References
- TenHoopen T. Mouch T. Static Stiffness - “A Cornerstone Metric” Automotive Body International 7 8 1998
- Li X. Messina A. Advanced Information Technology Implementation in Car Body Engineering at Fiat: From Standalone Application Towards Integration Proceedings of Advanced Technologies & Processes, IBEC'95 Detroit, USA 21 28 1995
- Lee J. K. Kinzel G. L. Wagoner R. H. Numerical Simulation of 3-D Sheet Metal Forming Processes - Verification of Simulation with Experiments (NUMISHEET'96 Proceedings) Dearborn, USA 1996
- Kessler L. Drewes E. J. Lenze F. J. Optimization of the Forming Process for Tailored Blanks by Means of FEM Proceedings of Automotive Body Materials, IBEC'97 Stuttgart, Germany 73 79 1997
- Vadez L. Villeval F. Comairas G. Numerical Simulation of Stamping Coupled with Structural Analysis, Numerical Methods in Industrial Forming Processes Balkema, Rotterdam 559 563 1992
- Liszka T. Orkisz J. The Finite Difference Method at Arbitrary Irregular Grids and its Application in Applied Mechanics Comp. Struct. 11 83 95 1980
- Cheng J. H. Automatic Adaptive Remeshing for Finite Element Simulation of Forming Processes Int. J. Num. Meth. Eng. 26 1 18 1988
- Marques M. J. M. Barata Martins P. A. F. An Algorithm for Remeshing in Metal Forming J. Mat. Proc. Tech. 24 157 167 1990
- Olmi F. Bittencourt E. Creus G.J. An Interactive Remeshing Technique Applied to Two Dimensional Problems Involving Large Elasto-Plastic Deformations Owen D. R. J. et al. Int. Conf. On Computational Plasticity V Barcelona (Spain) 619 625 1997