A MATHEMATICAL MADYMO-3D MODEL OF FRACTURABLE LEG
In this study, a mathematical model which represents a breakable leg was developed and implemented into a previous developed model of the pedestrian lower extremity model. The leg model consists of two rigid-body elements connected by a "fracturable joint". The moment-deformation characteristics of the "fracturable joint" are described by the user subroutines, which were prepared and added to the MADYMO 3D program system. The input data for the "fracturable joint" model originate from available biological specimen tests. Computer simulations of car-pedestrian impact with this modified pedestrian model were conducted at a speed of 31 km/h in four different configurations, and compared with previously performed human leg specimen tests. Different types of bumper compliance and bumper levels were simulated. The bumper force, the accelerations, the condyle contact forces and the ligament strains were calculated during simulations. The calculated parameters such as bumper forces and accelerations corresponded with the measured parameters in tests. The impact response of the lower extremity could be well predicted by the model. (A)
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/11031530
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Corporate Authors:
Chalmers Tekniska Hoegskola
Institutionen foer Personskadeprevention, Fack
Goeteborg, Sweden -
Authors:
- Yang, Jinglin
- RZYMBOWSKI, C
- KAJZER, J
- Publication Date: 1993
Language
- English
Media Info
- Features: References;
- Pagination: 23P+A p.
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Serial:
- RAPPORT
- Issue Number: 25
- Publisher: TRAFIKKONTORET I GOETEBORG
- ISSN: 1103-1530
Subject/Index Terms
- TRT Terms: Automobiles; Bumpers; Computer programs; Crashes; Fractures (Anatomy); Injuries; Leg; Mathematical models; Pedestrians; Simulation
- ITRD Terms: 1352: Bumper; 1243: Car; 1631: Collision; 2161: Fracture (bone); 2163: Injury; 2023: Leg (human); 6473: Mathematical model; 1733: Pedestrian; 9103: Simulation; 8645: Software
- Subject Areas: Pedestrians and Bicyclists; Safety and Human Factors;
Filing Info
- Accession Number: 00725261
- Record Type: Publication
- Source Agency: Swedish National Road and Transport Research Institute (VTI)
- Files: ITRD
- Created Date: Sep 26 1996 12:00AM