This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Computer Resources for F.E.A. of Vehicle Crash
Annotation ability available
Sector:
Language:
English
Abstract
The choice of finite element simulation to assess a vehicle's crashworthiness often hinges on the amount of resources needed for an adequately accurate analysis. The purpose of this paper is to describe results of a study comparing computer resources needed as a function of element and equation solving decisions.
The study evaluates the number of calculations for transient analysis of a simplified representation of an impacting vehicle using analytical and experimental data. It examines conventional and alternative models and numerical time-integration algorithms. It encompasses crash studies whose goal is prediction of intrusions or accelerations.
Conclusions emphasize that the conventional approach is extravagent of computer resources for both quasi-linear and highly-nonlinear crash simulations. It identifies development of special purpose finite element models and integration methods as the key to reducing needs to less than 1/1000 of those of the conventional approach.
Authors
Citation
Melosh, R., "Computer Resources for F.E.A. of Vehicle Crash," SAE Technical Paper 840725, 1984, https://doi.org/10.4271/840725.Also In
References
- Melosh R. J. “Car-Barrier Impact Response of a Computer Simulated Mustang,” DOT-HS-091-1-125A Automobile Manufacturer's Association Detroit, Michigan National Highway and Traffic Safety Administration March 1972 46
- McCormick C. W. “The NASTRAN User's Manual,” National Aeronautics and Space Administration NASA SP222101 Washington, D. C. 1972
- MARC-CDC Nonlinear Finite Element Analysis Program, User's Manual,” Control Data Corporation 1975
- Sharifi P. “ARGUS User's Manual,” Merlin Technologies San Jose California 1977
- Welsh R. E. Bruce R. W. Belytscko T. “Finite Element Analysis of Automotive Structures under Crash Loadings,” Report DOT-HS-810847, DOT 1976
- Wittlin G. Bloedel A. W. Ahrens D. J. “Experimental Verification of Program KRASH-Mathematical Model for General Aviation Structural Crash Dynamics,” SAE Paper 790589 1979 SAE Business Aircraft Meeting Wichita April 3-6, 1976
- Pifko A. Armen H. Levy A. Levine H. “PLANS - A Finite Element Program for Nonlinear Analysis of Structures,” II User's Manual, NASA-CR-145244 May 1977
- DeSalvo G. Swanson J. ANSYS Engineering Analysis System, User's Manual Control Data Corporation July 4 1979
- Kamat M. P. “Survey of Computer Programs for Prediction of Crash Response and of its Experimental Validation,” Measurement and Prediction of Structural and Biodynamic Crash Impact Response , ASME 1976
- Kamal M. M. “Analysis and Simulation of Vehicle-to-Barrier Impact,” SAE Paper 700414 , SAE Transactions 1970
- Ni C. M. “Impact Response of Curved Box Beam-Columns with. Large Global and Local Deformations,” Proc. 14, Structures, Structural Dynamics and Materials Conference AIAA Paper 73-401 1973
- Wittlin G. “Development, Experimental Verification and Application of Program KRASH for General Aviation Crash Dynamics,” FAA-RO-78-119 Dec. 1978
- Winter R. Pifko A. B. Cronkhite J. D. “Crash Simulation of Composite and Aluminum Helicopter Fuse-loges Using a Finite Element Program,” Paper 79-0781, Jour. Aircraft 17 8 591 1980
- Ni Chi-Mou Fine D. S. “Recent Advances in the Analysis of Automotive Vehicle Crashworthiness,” GMR-3070 General Motors Research Laboratories Warren, Michigan Aug. 23 1979 18
- Hayduk R. J. Thomson R. G. Kamat M. P. “Nonlinear Structural Dynamics Analysis,” SAE Paper 790588 Business Aircraft Meeting Business Aircraft Meeting Wichita April 3-6, 1979 12
- Hayduk R. J. Thomson R. G. Carden H. D. “NASA/FAA General Aviation Crash Dynamics Program - An Update,” 1979, Seminar, Int. Soc. of Air Safety Investigators Sept. 24-27, 1979 11
- Carden H. D. Hayduk R. J. “Aircraft Subfloor Response to Crash Loadings,” SAE Paper 810614 SAE Business Aircraft Meeting Wichita April 7-10, 1981 20
- Hayduk R. J. Winter Robert Pifko A. B. Fasanella E. L. “Application of Dycast - A Non-linear Finite Element Computer Program - To Aircraft Crash Analysis,” Int. Symp. on Structural Crashworthiness University of Liverpool England Sept. 15-16, 1983
- Meirovitch L. Computational Methods in Structural Dynamics Sijhoff and Nordhoff, Alphen aan des Rej Netherlands 1980
- Dhalla A. K. Gallagher R. H. “Computational Methods for Non-linear Structural Analysis in Pressure Vessels and Piping,” Design Technology-1982- A Decade of Progress, ASME 1982
- Rubin S. “Improved Component-Mode Representation for Structural Dynamic Analysis,” AIAA Jour. 12 Aug. 1975 995 1006
- Witlin G. Gannon M. A. “A Method of Analysis for General Aviation Airplane Structural Crashworthiness,” FAA-RD-76-123 Federal Aviation Administration 1976
- Symonds P. S. Chon C. T. Approximate Techniques for Impulsive Load of Structures of Time-Dependent Plastic Behavior with Finite Deflections,” Proc. Mech. Properties of Materials at High Strain Rates J. Harding E. Oxford Conf. Institution of Physics 21 1974 299 315
- Turner M. J. Clough R. W. Martin H. C. Topp L. J. Stiffness and Deflection Analysis of Computer Structures,” Journal Aeronautical Sciences 23 9 Sept. 1956
- Melosh R. J. “Finite Element Approximations in Transient Analysis,” Cheng/Kung AAS Symposium Tainan, Taiwan Dec. 28, 1981
- Hinton E. Rock R. Zienkiewicz O. C. “A Note on Mass Lumping in Related Process in the Finite Element Method,” Int. Jour. Earthquake Eng. Struct. Dynamics 4 1976 245 249
- Melosh R. J. Hatt Fritz “Modeling Structures for Simulating Non-linear Response,” SMIRT 4th Int. Conf. paper M4/16 San Francisco Aug. 15-19, 1977
- Krieg R. D. Key S. W. “Transient Shell Response by Numerical Time Integration,” Int. Jour. Num. Methods in Eng. 7 3 1973 273 286
- Melosh R. J. “Integration of Linear Equations of Motion,” ASCE Struct. Div. Jour. ST7 July 1975 675 678
- Melosh R. J. Hayduk R. J. “Quasi-Exact Transient Analysis of Nonlinear Structural Systems,” ASME Winter Meeting AMD 14 Houston, Texas Dec. 1975
- Melosh R. J. “Computer Solution of Crash Equations of Motion,” Crashworthiness Workshop Duke University Nov. 4-6, 1981
- Clough R. W. Penzien J. Dynamics of Structures McGraw-Hill New York 1975
- Herting D. N. “A General Purpose, Multi-Stage Component Modal Synthesis Method,” AIAA Journal 1981
- Baron M. L. Bleich A. A. “Tables for Frequencies and Modes of Free Vibrations of Infinitely Long Cylinders,” Jour. App. Mechanics 21 1954 178 184