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Development of THOR-FLx: A Biofidelic Lower Extremity for Use with 5th Percentile Female Crash Test Dummies
Technical Paper
2002-22-0014
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English
Abstract
A new lower leg/ankle/foot system has been designed and fabricated to assess the potential for lower limb injuries to small females in the automotive crash environment. The new lower extremity can be retrofitted at present to the distal femur of the 5th percentile female Hybrid III dummy. Future plans are for integration of this design into the 5th percentile female THOR dummy now under development.
The anthropometry of the lower leg and foot is based mainly on data developed by Robbins for the 5th percentile female, while the biomechanical response requirements are based upon scaling of 50th percentile male THOR-Lx responses. The design consists of the knee, tibia, ankle joints, foot, a representation of the Achilles tendon, and associated flesh/skins. The new lower extremity, known as THOR-FLx, is designed to be biofidelic under dynamic axial loading of the tibia, static and dynamic dorsiflexion, static plantarflexion and inversion/eversion. Instrumentation includes accelerometers, load cells, and rotary potentiometers to capture relevant kinematic and dynamic information from the foot and tibia.
This paper will describe the performance requirements for THOR-FLx, the methodology used in its' development, results of component tests, and the biofidelity tests conducted on the full assembly.
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Authors
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Citation
Shams, T., Beach, D., Huang, T., Rangarajan, N. et al., "Development of THOR-FLx: A Biofidelic Lower Extremity for Use with 5th Percentile Female Crash Test Dummies," SAE Technical Paper 2002-22-0014, 2002, https://doi.org/10.4271/2002-22-0014.Also In
References
- Atkinson P. Atkinson T. Haut R. Eusebi C. Maripudi V. Hill T. Sambatur K. 1998 Development of injury criteria for human surrogates to address current trends in knee-to-instrument panel injuries Proc. 42nd Stapp Car Crash Conference 13 31 Society of Automotive Engineers Warrendale, PA
- Crandall J. Martin P. 1997 Lower Extremity Injuries Sustained in Crashes and Corresponding Biomechanical Research International Symposium on Real World Crash Injury Research Loughborough, Englan
- Crandall J. Portier L. Petit P. Hall G. Bass C. Klopp G. Hurwitz S. Pilkey W. Trosseille X. Tarriere C. Lassau J. 1996 Biomechanical response and physical properties of the leg, foot, and ankle Proc. 40th Stapp Car Crash Conference 173 192 Society of Automotive Engineers Warrendale, PA
- Dischinger P. 1995 The Epidemiology of Pelvic and Lower Extremity Fractures Among Hospitalized Drivers International Conference on Pelvic and Lower Extremity Injuries Proceedings Washington, DC.
- Dischinger P. Burgess A. Cushing B. et al. 1994 Lower extremity trauma in vehicular front-seat occupants: patients admitted to a Level 1 trauma center In-Depth Accident Investigation Trauma Team Findings in Late Model Vehicle Collisions Society of Automotive Engineers Warrendale, PA
- Dischinger P. Kerns T. Kufera J. 1995 Lower Extremity Fractures in Motor Vehicle Collisions: The Role of Gender and Height Accident Analysis and Prevention 27 4 601 606
- Hering W. Patrick L 1977 Response comparisons of the human cadaver knee and a Part 572 dummy knee to crushable materials Proc. 21st Stapp Car Crash Conference 1017 1053 Society of Automotive Engineers Warrendale, PA
- Ito M. Goto T. Ono K. Matsuoka F. Haffner M. 2001 Dynamic Response Analysis of the Thor-Lx Dummy Lower Extremity 17th International Conference on the Enhanced Safety of Vehicles
- Jaffredo A. Portier P. Robin S. Le Coz J. Lassau J. 2000 Cadaver lower limb dynamic response in inversion-eversion 2000 IRCOBI 183 194 Montpelier
- Kuppa S. Klopp G. Crandall J. Hall G. Yoganandan N. Pintar F. Eppinger R. Sun E. Khaewpong N. Kleinberger M. 1998 Axial impact characteristics of dummy and cadaver lower limbs 16th International Technical Conference on the Enhanced Safety of Vehicles 2 1608 1617
- Kuppa S. Wang J. Haffner M. Eppinger R. 2001 Lower extremity injuries and associated injury criteria 17th International Technical Conference on the Enhanced Safety of Vehicles
- Longhitano D. Turley J. 2001 Lower extremity response of the Thor-Lx compared to the Hybrid III lower leg in frontal barrier crash tests 17th International Technical Conference on the Enhanced Safety of Vehicles
- Manning P. Wallace A. Owen C. Roberts A. Oakley C. Lowne R. 1998 Dynamic response and injury mechanism in the human foot and ankle and an analysis of dummy biofidelity 16th International Technical Conference on the Enhanced Safety of Vehicles 2
- Mertz H. Irwin A. Melvin J. Stalnaker R. Beebe M. 1989 Size, Weight and Biomechanical Impact Response Requirements for Adult Size Small Female and Large Male Dummies SAE Paper No. 890756 Society of Automotive Engineers Warrendale, PA
- Morgan R.M. Eppinger R.H. Hennessey B. 1991 Ankle joint injury mechanism for adult in frontal automotive impact Proc. 35th Stapp Car Crash Conference 189 198 Society of Automotive Engineers Warrendale, PA
- Morris A. Thomas P. Taylor A. Wallace A 1997 Mechanisms of fractures in ankle and hind-foot injuries to front seat car occupants - an in-depth accident data analysis Proc. 41st Stapp Car Crash Conference 181 194 Society of Automotive Engineers Warrendale, PA
- Portier L. Petit P. Domont A. Trosseille X. Le Coz J. Tarriere C. Lassau J. 1997 Dynamic biomechanical dorsiflexion responses and tolerances of the ankle joint complex Proc. 41st Stapp Car Crash Conference 207 224 Society of Automotive Engineers Warrendale, PA
- Petit P. Portier L. Foret-Bruno J. Trosseille X. Parenteau C. Coltat J. Tarriere C. Lasseau J. 1996 Quasistatic characterization of the human foot-ankle joints in a simulated tensed state and updated accidentological data 1996 IRCOBI 363 376 Dublin
- Petit P. Trosseille X. 1999 Comparison of the Thor, Hybrid III and cadaver lower leg dynamic responses in dorsiflexion Proc. 43rd Stapp Car Crash Conference 161 170 Society of Automotive Engineers Warrendale, PA
- Rudd R. Crandall J. Butcher J. 1999 Biofidelity Evaluation of Dynamic and Static Response Characteristics of the Thor-Lx Dummy Lower Extremity 1999 IRCOBI 485 497 Barcelona
- Robbins D. 1985 Anthropometry of Motor Vehicle Occupants 2 3 U.S. Dept. of Transportation DOT HS 806 716, DOT HS 806 717
- Shams T. Beach D. White R. Rangarajan N. Haffner M. Eppinger R. Pritz H. Kuppa S. Beebe M. 1999 Development and design of Thor-Lx: The Thor lower extremity Proc. 43rd Stapp Car Crash Conference 141 160 Society of Automotive Engineers Warrendale, PA
- Siegler S. Chen J. Schenk C. 1988 The three-dimensional kinematics and flexibility characteristics of the human ankle and subtalar joints - Part I: Kinematics Transactions of the ASME 110
- U.S.DOT/NHTSA 2002 Instrumented Denton and Thor-Lx lower legs for the Hybrid III 50th percentile male & 5th percentile female crash test dummies Technical Report, NHTSA Docket Number 11838
- Vehicle Research and Test Center 2001a Certification procedures for the Thor-Lx/Hybrid III retrofit Version 3.2. NHTSA
- Vehicle Research and Test Center 2001b Certification procedures for the Thor-FLx/Hybrid III retrofit Version 1.0. NHTSA
- Wheeler L. Owen C. Roberts A. Lowne R. Manning P. Wallace W. 2000 Biofidelity of dummy legs for use in legislative crash testing IMechE Vehicle Safety 2000 Conference Transactions