DYNAMIC CRUSHING OF STRAIN RATE SENSITIVE BOX COLUMNS

An approximate analysis was presented from which dynamic strength and energy absorption of axially loaded thin-walled box columns can be determined. The dynamic compressive force is a product of a static crushing strength of the column and a strain rate correction factor. The static crushing strength was shown to be proportional to the static yield stress and the square of the wall thickness as well as being dependent on the ratios of a longer to shorter side of a rectangular section. A good correlation of the load-deflection relationship and mean static crushing strength with experiments was obtained provided the effect of strain-hardening is properly taken care of.

• Supplemental Notes:
  • Second International Conference on Vehicle Structural Mechanics, Southfield, Michigan, April 18-20, 1977.
• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • WIERZBICKI, T
  • Akerstrom, T
• Conference:
  • Second International Conference on Vehicle Structural Mechanics, Southfield, Michigan, April 18-20, 1977.
• Publication Date: 1977

Media Info

• Features: References;
• Pagination: p. 19-31

Subject/Index Terms

• TRT Terms: Automobiles; Axial loads; Beams; Box girders; Buckling; Compression; Crushing; Deformation; Dynamics; Energy absorption; Highway safety; Sheet metal; Strain (Mechanics); Strength of materials; Structural analysis; Thin walls; Traffic crashes; Yield stress
• Uncontrolled Terms: Dynamic characteristics; Strain rate
• Old TRIS Terms: Beams and girders; Sheet and strip metal
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00164976
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: SAE 770592
• Files: TRIS
• Created Date: Dec 27 1977 12:00AM