Biomechanical analysis of thorax-abdomen response of vehicle occupant under seat belt load considering different frontal crash pulses

作者全名："Qiu, Jinlong; Li, Kui; Xiang, Hongyi; Xie, Jingru; Fan, Zhuangqin; Qin, Mingxin"

作者地址："[Qiu, Jinlong; Li, Kui; Xiang, Hongyi; Xie, Jingru; Fan, Zhuangqin] Army Med Univ, Daping Hosp, Inst Traff Med, Chongqing Key Lab Vehicle Crash Bioimpact & Traff, Chongqing, Peoples R China; [Qin, Mingxin] Army Med Univ, Coll Biomed Engn, Chongqing, Peoples R China; [Qin, Mingxin] Army Med Univ, Chongqing, Peoples R China"

通信作者："Qin, MX (通讯作者)，Army Med Univ, Chongqing, Peoples R China."

来源：ACTA OF BIOENGINEERING AND BIOMECHANICS

ESI学科分类：MOLECULAR BIOLOGY & GENETICS

WOS号：WOS:001011501100005

JCR分区：Q4

影响因子：1

年份：2022

卷号：24

期号：4

开始页：31

结束页：38

文献类型：Article

关键词：thorax and abdomen; biomechanical response; injury risk; seat belt load; frontal crash

摘要："Purpose: The purpose of this work was to understand the biomechanical response and injury risk of thorax and abdomen of vehicle front seat occupants caused by seat belt load under different frontal crash pulses. Methods: A vehicle-seat-occupant subsystem finite element (FE) model was developed using the a assembly of vehicle front seat and seat belt together with the THUMS (Total Human body Model for Safety) AM50 (50th% Adult Male) occupant model. Then the typical vehicle frontal crash pulses from different impact sce-narios were applied to the vehicle-seat-occupant subsystem FE model, and the predictions from the occupant model were analyzed. Results: The modeling results indicate that the maximum sternal compression of the occupant caused by seat belt load is not sensitive to the peek of the crash pulse but sensitive to the energy contained by the crash pulse in the phrase before seat belt load reaching its limit. Injury risk analysis implies that seat belt load of the four crash scenarios considered in the current work could induce a high thorax AIS2+ injury risk (>80%) to the occupants older than 70 years, and a potential injury risk to the spleen. Conclusions: The findings sug-gest that control of the energy in the first 75 ms of the crash pulse is crucial for vehicle safety design, and thorax tolerance of the older population and spleen injury prevention are the key considerations in developing of seat belt system."

基金机构：National Social Science Foundation of China [2021-SKJJ-C-012]; Chongqing Postgraduate Research Innovation Project [CYB22286]

基金资助正文："This study was supported by National Social Science Foundation of China (Grants No. 2021-SKJJ-C-012), Chongqing Postgraduate Research Innovation Project (Grants No. CYB22286)."