ANALYTICAL FINITE ELEMENT SIMULATION MODEL FOR STRUCTURAL CRASHWORTHINESS PREDICTION

The analytical development and appropriate derivations are presented for a simulation model of vehicle crashworthiness prediction. Incremental equations governing the nonlinear elasto-plastic dynamic response of three-dimensional frame structures are derived, where the associated stiffness and compatibility matrices also incorporate large geometry changes. A discussion of yield criteria is given, together with bound type estimates for thin walled cross section beams. The Newmark beta method is then used to solve the equations of motion, and is oriented toward the particular incremental equations typical of the present application.

• Corporate Authors:

  Transportation Systems Center

  55 Broadway, Kendall Square
  Cambridge, MA  United States  02142
• Authors:
  • Rossettos, J
  • Weinstock, H
  • Pasternack, S
• Publication Date: 1974-2

Media Info

• Features: Figures; References;
• Pagination: 66 p.

Subject/Index Terms

• TRT Terms: Crashworthiness; Cross sections; Dynamic loads; Elastoplasticity; Finite element method; Framed structures; Mathematical models; Nonlinear equations; Simulation; Stiffness
• Uncontrolled Terms: Dynamic response; Elastic plastic analysis
• Old TRIS Terms: Finite elements; Stiffness methods (Structural)
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00080607
• Record Type: Publication
• Source Agency: National Safety Council Safety Research Info Serv
• Report/Paper Numbers: DOT HS-801 018 Intrm Rpt.
• Files: TRIS
• Created Date: Mar 26 1975 12:00AM