Study on damage of thin-walled long rod of guardrail penetrating chest

doi:10.16265/j.cnki.issn1003-3033.2019.04.005

Abstract

Abstract: This paper aims to reconstruct the damage mechanism and penetration process of the thin-walled long rod penetrating the driver's chest when the rectangular road barrier collides with the car. By combining medical software Mimics with engineering software Hypermesh, an accurate geometric model of human thoracic skeletal tissue and a finite element chest biomechanical model were established, and the simulation and calculation experiments were carried out by using LS-DYNA. The results of simulation experiments were verified by accident cases and medical cases. The damage mechanism of thin-walled long rod penetrating human chest was analyzed by analogy with that of bullet penetration injury effect. The results show that the fracture of ribs and other fractures occurred in the chest before and after the long wall of the barrier penetrate the driver's chest are in good agreement with medical cases and accident cases, that the degree of chest penetration injury is related to the speed, stability and quality factors of thin-walled long rod, and that this experiment can meet the needs of medical thoracic penetrating injury research.

Key words: thin-walled long rod of guardrail, chest biological model, penetrating injury, finite element analysis, analogy method, damage mechanism

CLC Number:

X910

ZHI Zhi, GUO Shiyong. Study on damage of thin-walled long rod of guardrail penetrating chest[J]. China Safety Science Journal, 2019, 29(4): 25-30.

References

[1] 陈伟程,吉喆,肖寒,等. 全国机动车保有量分析:《中国机动车环境管理年报(2017)》第Ⅰ部分[J].环境保护,2017,45(12): 33-34.
CHEN Weicheng, JI Zhe, XIAO Han, et al. National motor vehicle ownership analysis:《China motor vehicle environmental management annual report(2017)》Part Ⅰ [J]. Environmental Protection,2017,45(12): 33-34.
[2] 孙丽璐,吴奇,赵娟,等.我国2004—2015年交通事故影响因素实证研究[J]. 西南大学学报:自然科学版,2018,40(11): 112-118.
SUN Lilu, WU Qi, ZHAO Juan, et al. An empirical study on the influencing factors of traffic accidents in China in the 2004-2015 [J]. Journal of Southwest University: Natural Science Edition, 2018,40 (11): 112-118.
[3] 李蕊,赵丽华.交通事故人员伤亡的影响因素研究[J].中国安全科学学报,2015,25(4): 123-127.
LI Rui, ZHAO Lihua. Study on the influencing factors of casualties in traffic accidents [J]. China Safety Science Journal, 2015,25 (4): 123-127.
[4] SHIN J,UNTAROIU C,LESSLEY D, et al. Thoracic response to shoulder belt loading: investigation of chest stiffness and longitudinal strain pattern of ribs[C]. SAE World Congress, 2009:paper2009-01-0384.
[5] 公安部交通管理局. 2013 中华人民共和国道路交通事故统计年报[R],2014.
[6] 中华人民共和国公安部交通管理局.道路交通事故统计年报(2008—2012)[R],2013.
[7] 蔡志华,兰凤崇,谌玉红.人体生物力学模型建立及在汽车安全中的应用[J].中国科学:技术科学,2014,44(8): 870-882.
CAI Zhihua, LAN Fengchong, SHEN Yuhong. Establishment of human biomechanical model and its application in automobile safety [J]. Science in China: Technical Sciences,2014,44 (8): 870-882.
[8] 蔡志华,兰凤崇,陈洁青,等.基于汽车碰撞损伤的人体胸部有限元模型构建与验证[J].医用生物力学,2013,28(1): 36-43.
CAI Zhihua, LAN Fengchong, CHEN Jieqing, et al. Construction of the finite element model of human chest ased on vehicle collision damage jade verification [J]. Medical Biomechanics,2013,28 (1): 36-43.
[9] 翁剑波,胡辉莹.有限元法在人体胸部建模研究中的应用[J].安徽医学,2015,36(5): 633-635.
WENG Jianbo, HU Huiying. Application of finite element method in the study of human chest modeling [J]. Anhui Medicine, 2015,36 (5): 633-635.
[10] 张治纲,李曙光,范立冬,等.人体胸部有限元模型研究[J].第三军医大学学报,2009,31(6): 535-537.
ZHANG Zhigang, LI Shuguang, FAN Lidong et al. Study on finite element model of human chest [J]. Journal of the Third Military Medical University, 2009,31 (6): 535-537.
[11] 王页平,林小英,周慧峰.Mimics和Geomagic辅助下建立固定义齿的有限元模型[J].医用生物力学,2010,25(6): 433-438.
WANG Yeping, LIN Xiaoying, ZHOU Huifeng. Finite element model of fixed denture based on Mimics and Geomagic [J].Medical Biomechanics, 2010,25 (6): 433-438.
[12] 肖森,杨济匡,肖志.基于正面碰撞实验的胸部损伤有限元分析[J].力学学报,2017,49(1): 191-201.
XIAO Sen, YANG Jikuang, XIAO Zhi. Finite element analysis of chest injury based on frontal collision experiment [J]. Journal of Mechanics, 2017,49 (1): 191-201.
[13] MORDAKA J, MEIJER R, ROOIJ L V, et al. Validation of a finite element human model for prediction of rib fractures[C]. SAE World Congress, 2007:paper2007-01-1161.
[14] IWAMOTO M,KISANUKI Y,WATANABE I,et al.Development of a finite element model of the total human model for safety (THUMS) and application to injury reconstruction[C].Proceedings of the International Research Council on the Biomechanics of Impacts (IRCOBI) Conference, 2002:31-42.
[15] KLEINMAN P K, SCHLESINGER A E. Mechanical factors associated with posterior rib fractures: laboratory and case studies[J]. Pediatric Radiology, 1997, 27(1): 87-91.
[16] RUAN J, EL-JAWAHRI R, CHAI L, et al. Prediction and analysis of human thoracic impact responses and injuries in cadaver impacts using a full human body finite element model[J]. Stapp Car Crash Journal, 2003,47: 299-321.
[17] KIMPARA H, LEE J B, YANG K H, et al. Development of a three-dimensional finite element chest model for the 5^th percentile female[J]. Stapp Car Crash Journal, 2005, 49: 251-269.
[18] 王秦凤, 洪小玉.1例杉木胸部贯穿伤患者的护理[J].护理学报,2008,15(9): 55-56.
WANG Qinfeng, HONG Xiaoyu. Nursing care of 1 cases of FIR chest penetrating injury [J]. Journal of Nursing,2008,15(9): 55-56.