EVALUATION OF THE HYBRID III DUMMY INTERACTIONS WITH AIR BAG IN FRONTAL CRASH BY FINITE ELEMENT SIMULATION

A deformable finite element (FE) dummy model was used to simulate air bag interaction with in-position passenger side occupants in frontal vehicle crash. This dummy model closely simulates the Hybrid III hardware with respect to geometry, mass, and material properties. Test data was used to evaluate the validity of the model. The calculated femur loads, chest acceleration and head acceleration were in good agreement with the test data. A semi-rigid dummy model with rigid chest was derived from the deformable dummy to improve turnaround time. Simulation results using the semi-rigid dummy model were in reasonable agreement with the test data. For comparison purpose, simulations were also performed using PAMCVS, a hybrid code which couples the FE PAMCRASH code with the rigid body occupant code. The deformable dummy model predicted better chest acceleration than the other two models. However, the semi-rigid dummy model and the PAMCVS model showed a dramatic reduction in CPU time. The results also indicated that skin compliance has a softening effect on the impact response of the dummy. The dummy chest deformation was found to have an effect on the overall dummy response. (A) For the covering abstract of the conference see IRRD 882980.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/1560917415
• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • LIN, T C
  • WAWA, C
  • KHALIL, T B
• Conference:
  • SAE PUBLICATION P-299. PROCEEDINGS OF THE 39TH STAPP CAR CRASH CONFERENCE, NOVEMBER 8-10, 1995, SAN DIEGO, CALIFORNIA, USA (SAE TECHNICAL PAPER 952705)
• Publication Date: 1995-11

Language

• English

Media Info

• Features: References;
• Pagination: p. 37-49

Subject/Index Terms

• TRT Terms: Acceleration (Mechanics); Air bags; Anthropometry; Biophysics; Conferences; Deformation; Dummies; Evaluation and assessment; Finite element method; Forecasting; Frontal crashes; Head; Leg; Simulation; Thorax
• ITRD Terms: 5405: Acceleration; 1465: Air bag (restraint system); 1618: Anthropometric dummy; 2060: Biomechanics; 8525: Conference; 5595: Deformation; 9020: Evaluation (assessment); 6490: Finite element method; 132: Forecast; 1640: Head on collision; 2023: Leg (human); 9103: Simulation; 2083: Thorax
• Subject Areas: Data and Information Technology; Planning and Forecasting; Research; Society;

Filing Info

• Accession Number: 00729421
• Record Type: Publication
• Source Agency: Institute for Road Safety Research, SWOV
• ISBN: 1-56091-741-5
• Files: ITRD
• Created Date: Dec 26 1996 12:00AM