Numerical Investigation of Knee-Thigh-Hip Injuries in Frontal Vehicle Collisions

作者：Heath Douglas R^*; Silvestri Chiara; Ray Malcolm H

来源：Transportation Research Record, 2012, (2281): 69-75.

DOI：10.3141/2281-09

Recent improvements to occupant restraint systems, such as seat belts and airbags, have caused a shift in the injury profile that results from vehicle collisions from primarily upper body to primarily lower extremity injuries. Injuries of the knee thigh hip (KTH) region have been shown to be some of the most debilitating. This project used a finite element model of the KTH region to study injury. A parametric investigation was conducted; the finite element KTH was simulated as a vehicle occupant positioned to a range of precrash driving postures. Results indicated that timing between a significant rise in foot floor and knee bolster contact force affected knee kinematics and axial force absorbed by the KTH region. Findings also suggest that introducing a lag time between the respective contacts may decrease the likelihood of KTH bone injury.

• 出版日期2012
• 单位AECOM