REVERSE ENGINEERING METHOD FOR DEVELOPING PASSENGER VEHICLE FINITE ELEMENT MODELS

A methodology for full-vehicle representation in the form of a finite element model for crashworthiness studies has been developed. Detailed finite element models of two passenger vehicles--the 1995 Chevrolet Lumina and the 1994 Dodge Intrepid--have been created. The models are intended for studying the vehicle's behavior in full frontal, frontal offset, and side impact collisions. These models are suitable for evaluating vehicle performance and occupant safety in a wide variety of impact situations and are also suitable for part and material substitution studies to support Partnership for New Generation of Vehicles research. The geometry for these models was created by careful scanning and digitizing of the entire vehicle. High degree of detail is captured in the body in white (BIW), the frontend components, and other areas involved in frontal, frontal offset, and side impact on the driver's side. Mass, center of gravity, and moment of inertia were matched at the component level and at the full vehicle level. The models represent the vehicle in mass, moments of inertia, and crashworthiness performance. Vehicle responses in the different crash modes--56 kph (35 mph) frontal (New Car Assessment Program), 64 kph (40 mph) offset (Insurance Institute of Highway Safety), and 53.6 kph (33.5 mph) side impact (Federal Motor Vehicle Safety Standard 214)--were validated by comparing them with actual vehicle test responses. Good agreement between the test results and finite element simulation was found.

  • Availability:
  • Supplemental Notes:
    • This paper was presented in the Safety Technology session of the 1999 SAE International Congress and Exposition and is included in the SAE Special Publication, "Advances in Safety Technology 1999" (SP-1433).
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Gupta, V
    • GUNASEKAR, T J
    • Rao, A
    • Kamarajan, J
    • SUMMERS, S
  • Conference:
  • Publication Date: 1999-3

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 53-68
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00768955
  • Record Type: Publication
  • ISBN: 0768003652
  • Report/Paper Numbers: 1999-01-0083
  • Files: TRIS
  • Created Date: Sep 28 1999 12:00AM