DEVELOPMENT OF A HYBRID III LOWER LEG COMPUTER MODEL
With the introduction of the lower leg injury criteria in the new European Frontal Impact Legislation, the leg kinematics and loading mechanisms must be considered at an early stage in vehicle development programmes. Finite Element codes such as LS-DYNA3D are used increasingly to model occupant.structure interactions for vehicle design, from concept to the final restraint system optimisation. A fully validated Hybrid III lower leg model is consequently an essential tool in the vehicle design process. However, due to the complex nature of the materials and geometry of the lower leg and footwell, development of such a model presents a number of problems. In the collaborative LLIMP project (Lower Leg Injuries and Methods of Prevention vehicle design project), MIRA, with the project sponsors, Jaguar, Ford and Rover, has developed a Finite Element computer model of the Hybrid III lower leg which can be attached to a full Hybrid III Finite Element dummy model. The model has been used to support vehicle design as well as evaluating the effects of footwell intrusion and occupant position on lower leg injury criteria. The paper presents the development of the lower leg model, which includes the use of lower leg component tests and HyGe sled tests to validate the material models, contact characteristics and load levels. HyGe sled tests have been simulated to which lower leg kinematics, loading mechanisms and injury criteria have been correlated. (A) For the covering abstract see IRRD E102514.
- Record URL:
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Corporate Authors:
National Highway Safety Advisory Committee
National Highway Traffic Safety Administration, 1200 New Jersey Avenue, SE
Washington, DC United States 20590 -
Authors:
- BUCHANAN, J A
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Conference:
- 16th International Technical Conference on the Enhanced Safety of Vehicles
- Location: Windsor Ontario, Canada
- Date: 1998-5-31 to 1998-6-4
- Publication Date: 1998-10
Language
- English
Media Info
- Features: References;
- Pagination: p. 1936-44
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Serial:
- Issue Number: DOT HS 808 759
Subject/Index Terms
- TRT Terms: Anthropometry; Development; Dummies; Finite element method; Leg; Mathematical analysis; Simulation; Test procedures
- ITRD Terms: 6471: Analysis (math); 1618: Anthropometric dummy; 9013: Development; 6490: Finite element method; 2023: Leg (human); 9103: Simulation; 6288: Test method
- Subject Areas: Research;
Filing Info
- Accession Number: 00788294
- Record Type: Publication
- Source Agency: Transport Research Laboratory
- Files: ITRD, USDOT
- Created Date: Mar 3 2000 12:00AM