NONLINEAR STRUCTURAL CRASH DYNAMICS ANALYSES
Presented are the results of three nonlinear computer programs, KRASH, ACTION, and DYCAST used to analyze the dynamic response of a twin-engine, low-wing airplaine 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.
- From the Meeting held 3-6 April 1979.
Warrendale, PA United States 15096
- HAYDUK, R J
- Thompson, Russell G
- Wittling, G
- Kamat, M P
- Publication Date: 1979
- Features: References;
- Pagination: 13 p.
- Society of Automotive Engineers Preprint
- Publisher: Society of Automotive Engineers (SAE)
- TRT Terms: Air transportation crashes; Aircraft; Applications; Computer programming; Computer programs; Crash phase; Crashes; Dynamic loads; Impact; Impacts; Mathematical models; Nonlinear systems; Prevention; Safety; Simulation; Structural analysis; Vehicle dynamics
- Uncontrolled Terms: Dynamic response
- Old TRIS Terms: Crash computer program
- Subject Areas: Aviation; Research; Safety and Human Factors; Security and Emergencies; Vehicles and Equipment;
- Accession Number: 00303159
- Record Type: Publication
- Source Agency: Engineering Index
- Report/Paper Numbers: SAE 790588 Conf Paper
- Files: TRIS
- Created Date: Mar 20 1980 12:00AM