Investigation of lower limb injury under different contact stiffness for drivers during frontal crash

• Autorzy: Xiao Sen , You Siqi , Tian Tengfei , Wu Jindong , Zhang Hao

Identyfikatory

DOI

10.37190/ABB-02057-2022-02

• Języki publikacji: EN

Abstrakty

EN

Lower extremity injuries in AIS2+ were the most costly injuries through the statistical analysis of traffic accidents. This study aimed to investigate the response characteristics of the lower limb with different contact stiffness, in which knee cushion and foot cushion were applied. First, a model with a human body and a car was established, and the muscle function was activated in lower extremity of human model. Second, the deceleration pulse with a peak of 186 m/s2 was applied to the car to simulate the frontal crash. Then, four sets of simulations with different contact stiffness are conducted to obtain the lower limb responses. Results indicate that the maximum loading of the left and right legs during the impact was 1.29 and 1.22 kN, respectively. Meanwhile, the maximum moment were 28.82 and 52.17 Nm, respectively. The maximum stress of lower extremity was 87.35 MPa, and the maximum tibia index was 0.230. It was demonstrated that the injury risk of the femur in the groups with equipment of knee cushion and foot cushion was low, but the injury risk of the tibia increased at the same time. This study could provide a reference to the study of lower limb injury in a frontal impact.

Słowa kluczowe

EN

frontal impact; knee bolster; lower extremities injury; contact stiffness; injury outcomes

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2022
• Tom: Vol. 24, no. 2
• Strony: 83--93
• Opis fizyczny: Bibliogr. 31 poz., rys., tab., wykr.

Twórcy

autor

Xiao Sen

• School of Mechanical Engineering, Hebei University of Technology, Tianjin, China.
• Tianjin Key Laboratory of Power Transmission and Safety Technology for New Energy Vehicles, Hebei University of Technology, Tianjin, China.

autor

You Siqi

• School of Mechanical Engineering, Hebei University of Technology, Tianjin, China.

autor

Tian Tengfei

• School of Mechanical Engineering, Hebei University of Technology, Tianjin, China.

autor

Wu Jindong

• School of Mechanical Engineering, Hebei University of Technology, Tianjin, China.

autor

Zhang Hao

• School of Mechanical Engineering, Hebei University of Technology, Tianjin, China.

Bibliografia

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