DYNAMIC RESPONSE OF A ONE-DIMENSIONAL ELASTOPLASTIC TERRAIN SCOOPING MODEL

A realistic crashworthiness simulation should include the ability to account for terrain scooping and subsequent barrier impact. A simplified model, utilizing an elastic-plastic bar and an elastic-plastic spring-mass barrier, is employed to develop a terrain scooping analysis. Finite element analysis for a variable mass system is applied to determine the dynamic response for the various regimes of this problem, namely: the initial free flight of the bar, the terrain scooping phase, and the contact and subsequent separation of rod and barrier. Occupant response (accelerations) as well as structural response (stresses) are examined.

Media Info

  • Pagination: p. 92-100

Subject/Index Terms

Filing Info

  • Accession Number: 00196285
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Sep 15 1979 12:00AM