The Effect of Breast Anthropometry on the Hybrid III 5th Female Chest Response

The Hybrid III 5th percentile female dummy is produced by two manufacturers, Denton ATD and FTSS. The industry has raised concerns about differences in the anthropometry of the molded breasts between the two manufacturers. A comparative testing program was conducted by Transport Canada. Thorax biofidelity tests were conducted to compare force-deflection characteristics; full frontal rigid-barrier tests were conducted at 40, 48 and 56 km/h to compare chest responses, and out-of-position chest on module static airbag deployment tests were conducted to compare peak chest deflections of the two different dummy jackets and of a prototype jacket without breasts. Differences in force-deflection characteristics were observed during biofidelity pendulum impacts of the two dummies, with much of the differences attributed to the different chest jackets. Differences of up to 11 mm in the peak sternum deflection and of the order of 15 g for the 3-ms chest acceleration clips were noted in rigid-barrier vehicle tests. In the out-of-position airbag-deployment tests, differences in the magnitude of peak chest deflections were observed. The prototype chest jacket without breasts was found to improve repeatability in the belted crash tests and in out-of-position airbag testing. It was found that the Denton dummy more closely met the drawing specifications and had less manufacturing variability. The results demonstrate the importance of detailed chest flesh assembly specifications, provide evidence that a fully molded jacket design would eliminate manufacturing variability and suggest that removal of the breasts may further improve test repeatability.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/139780768018295
• Authors:
  • Tylko, Suzanne
  • Charlebois, Dominique
• Conference:
  • 50th Stapp Car Crash Conference
  • Location: Dearborn Michigan, United States
  • Date: 2006-11-6 to 2006-11-8
• Publication Date: 2006-11

Language

• English

Media Info

• Media Type: Print
• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: pp 389-414
• Serial:
  • Stapp Car Crash Journal
  • Volume: 50
  • Publisher: Society of Automotive Engineers (SAE)
  • ISSN: 1532-8546
  • Serial URL: http://www.stapp.org/pubs.shtml

Subject/Index Terms

• TRT Terms: Air bags; Anthropometry; Deflection; Dummies; Females; Force; Frontal crashes; Pendulum tests; Speed; Thorax
• Uncontrolled Terms: Biofidelity; Comparative analysis; Repeatability
• Subject Areas: Highways; Safety and Human Factors; I84: Personal Injuries;

Filing Info

• Accession Number: 01046259
• Record Type: Publication
• ISBN: 139780768018295
• Files: TRIS
• Created Date: Apr 19 2007 3:57PM