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.

  • Supplemental Notes:
    • From the Meeting held 3-6 April 1979.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • HAYDUK, R J
    • Thompson, Russell G
    • Wittling, G
    • Kamat, M P
  • Publication Date: 1979

Media Info

Subject/Index Terms

Filing Info

  • 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