Injury thresholds and a measurement technique for the thigh and leg of a pedestrian

Takahashi, Yukou; Okamoto, Masayoshi; Kikuchi, Yuji; Akiyama, Akihiko

The new design of a modified lower limb of the Polar-II pedestrian dummy for enhanced biofidelity requires establishment of an alternative instrumentation to load cells. The objective of this study was to determine injury thresholds for the thigh and leg of the modified dummy, and to establish an alternative measurement technique. FE pedestrian impact simulations were run using full-body dummy and human models to determine injury thresholds for the dummy. Quasi-static mid-shaft 3-point bending tests of the modified femur and tibia were performed to compare bending moments calculated from strains with those from support forces to validate the measurement technique.

Keywords: pedestrians; dummies; finite element method; injury criteria; measurements

Year

Entry

2001

Akiyama A, Okamoto M, Rangarajan N. Development and application of the new pedestrian dummy. In: Proceedings of the 17th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 4-7, 2001; Amsterdam, The Netherlands.

2002

Rhule HH, Maltese MR, Donnelly BR, Eppinger RH, Brunner JK, Bolte JH IV. Development of a new biofidelity ranking system for anthropomorphic test devices. Stapp Car Crash J. 2002;46:477-512. SAE 2002-22-0024.

2006

Kikuchi Y, Takahashi Y, Mori F. Development of a finite element model for a pedestrian pelvis and lower limb. In: Proceedings of the SAE World Congress & Exhibition. April 3-6, 2006; Detroit, MI. Warrendale, PA: Society of Automotive Engineers. SAE 2006-01-0683.

2005

Kerrigan J, Kam C, Drinkwater C, Murphy D, Bose D, Ivarsson J, Crandall J. Kinematic comparison of the Polar-II and PMHS in pedestrian impact tests with a sport-utility vehicle. In: Proceedings of the 2005 International IRCOBI Conference on the Biomechanics of Impact. September 21-23, 2005; Prague, Czech Republic.159-174.

2003