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Nonlinear Structural Crash Dynamics Analyses
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English
Abstract
Presented in this paper are the results of three nonlinear computer programs, KRASH, ACTION and DYCAST used to analyze the dynamic response of a twin-engine, low-wing airplane section subjected to a 8.38 m/s (27.5 ft/s) vertical impact velocity crash condition. This impact condition simulates the vertical sink rate in a shallow aircraft landing or takeoff accident.
The three distinct analysis techniques for nonlinear dynamic response of aircraft structures are briefly examined and compared versus each other and the experimental data. The report contains brief descriptions of the three computer programs, the respective aircraft section mathematical models, pertinent data from the experimental test performed at NASA Langley, and a comparison of the analyses versus test results.
Cost and accuracy comparisons between the three analyses are made to illustrate the possible uses of the different nonlinear programs and their future potential.
Authors
Citation
Hayduk, R., Thomson, R., Wittlin, G., and Kamat, M., "Nonlinear Structural Crash Dynamics Analyses," SAE Technical Paper 790588, 1979, https://doi.org/10.4271/790588.Also In
References
- Thomson R. G. Goetz R. C. “NASA/FAA General Aviation Crash Dynamics Program - A Status Report.” AIAA Paper 79-0780, AIAA/ASME/ASCE/AHS 20th Structures, Structural Dynamics, and Materials Conference April 4-6 1979
- Fasanella E. L. Alfaro-Bou E. “NASA Crash Dynamics Safety Seat Program.” SAE Paper 790591 1979 SAE Business Aircraft Meeting and Exposition April 3-6 1979
- Wittlin G. Gamon M. A. “Experimental Program for the Development of Improved Helicopter Structural Crashworthiness Analytical and Design Techniques.” USAAMRDL TR 72-72 May 1973
- Wittlin G. “Development, Experimental Verification and Application of Program KRASH for General Aviation Airplane Structural Crash Dynamics.” FAA - RD- 78- 119 December 1978
- Winter R. Pifko A. B. Cronkhite J. D. “Crash Simulation of Composite and Aluminum Helicopter Fuselages Using a Finite Element Program.” AIAA Paper 79 - 0781, AIAA/ASME/ASCE/AHS 20th Structures, Structural Dynamics, and Materials Conference April 4-6 1979
- Wittlin G. Bloedel A. W. Ahrens D. J. “Experimental Verification of Program KRASH - Mathmatical Model for General Aviation Structural Crash Dynamics.” SAE Paper 790589 1979 SAE Business Aircraft Meeting and Exposition April 3-6 1976
- Vaughan, V. L. Jr. Alfaro-Bou E. “Impact Dynamics Research Facility for Full-scale Aircraft Crash Testing.” NASA TN D - 8179 April 1976
- 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
- Winter R. Pifko A. B. Armen, H. Jr. “Crash Simulation of Skin-Frame Structures Using a Finite Element Code.” SAE Paper 770484 Business Aircraft Meeting March 29 April 1 1977
- Pifko A. B. Levine H. S. Armen, H. Jr. “PLANS - A Finite Element Program for Nonlinear Analysis of Structures; Volume I - Theoretical Manual.” NASA CR - 2568 November 1975
- Wittlin G. “Summary of Results for a Twin-Engine, Low-Wing Airplane Substructure Crash Impact Condition Analyzed with Program ‘KRASH.’” FAA - RD - 79 - 13 Feb. 1979
- Everstine G. C. “Reduction of Matrix Wavefront for NASTRAN.” Seventh NASTRAN User's Colloquium, NASA CP-2062 October 1978