Journal of Jilin University(Engineering and Technology Edition) ›› 2021, Vol. 51 ›› Issue (3): 792-798.doi: 10.13229/j.cnki.jdxbgxb20200227

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Abdominal injury of vehicle occupant in underbody blast events

Bo WANG1,2(),Yang-yang HE3,Bing-bing NIE1,Shu-cai XU1,Jin-huan ZHANG1()   

  1. 1.State Key Laboratory Automotive Satety and Energy，Tsinghua University，Beijing 100084，China
    2.China North Vehicle Research Institute，Beijing 100072，China
    3.Unit 32184 of the PLA，Beijing 100093，China
  • Received:2020-04-10 Online:2021-05-01 Published:2021-05-07
  • Contact: Jin-huan ZHANG E-mail:wangbo_201@126.com;zhjh@tsinghua.edu.cn

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Abstract:

To better understand the mechanisms and risks of abdominal injuries that result from underbody blast events， a finite element model including the occupant， the vehicle structure and the flow field of explosion was established. The dynamic responses of the thoracic and abdominal organs under the explosion of 6 kg TNT charge were studied， and the effects of seat impact， floor impact and seat belt loading on abdominal pressure were compared. Injury risks of the abdomen during blast loading were evaluated based on two biomechanical predictors： strain energy density of parenchymatous organ and the peak rate of abdominal vascular pressure change. During the process of impact， the occupant was pushed upward by the seat impact， which made the abdomen expanded. When the occupant was separated from the seat， the seat belt restricted the occupant from moving upward， which compressed the abdomen. The simulation results show that the seat impact has the largest effect on the abdominal pressure， followed by the seat belt loading. In the model constructed in this paper， the peak rate of abdominal vascular pressure change was 2.1 kPa/ms which showed that the risk of abdominal injury during blast is low. The present results can be served as a reference for vehicle protection system design.

Key words: vehicle engineering, biomechanics, abdominal injury, underbody blast, finite element human body model

CLC Number: 

  • U461.91

Fig.1

Finite element model"

Fig.2

Chest and abdomen structures of GHBMC"

Fig.3

Deformation of the skeleton"

Fig.4

Abdomen band contours"

Fig.5

Deformation of internal organs"

Table 1

SED of abdominal organs"

部位

SED仿真结果/

(μJ·mm-3)

损伤阈值/

(μJ·mm-3)

阈值出处备注
肝脏2.0

24

15

17.1±4.4

文献[20]

文献[18]

文献[18]

恒河猴的肝脏

猪的肝脏

人体肾皮质组织

肾脏4.4

20

25

27

文献[20]

文献[18]

文献[21]

恒河猴的肾脏

猪的肾脏

人体有限元模型

脾脏2.535文献[21]人体有限元模型

Fig.6

Abdominal vasculature pressure curves withdifferent boundary conditions"

Fig.7

Von Mises Strain distribution ofabdominal and thoracic organs"

Fig.8

Belt force-time curve"

Fig.9

Velocity-time curve of pelvis"

1 Owens B D, Kragh J F, Wenke J C, et al. Combat wounds in operation iraqi freedom and operation enduring freedom[J]. Journal of Trauma-injury Infection and Critical Care, 2008, 64(2):295-299.
2 Mckay B J, Bir C A. Lower extremity injury criteria for evaluating military vehicle occupant injury in underbelly blast events[J]. Stapp Car Crash Journal, 2009, 53:229-249.
3 Yoganandan N, Moore J, Arun M W, et al. Dynamic responses of intact post mortem human surrogates from inferior-to-superior loading at the pelvis[J]. Stapp Car Crash Journal, 2014, 58:123-143.
4 Dong L, Zhu F, Jin X, et al. Blast effect on the lower extremities and its mitigation: a computational study[J]. Journal of the Mechanical Behavior of Biomedical Materials, 2013, 28:111-124.
5 Lei J Y, Zhu F, Jiang B H, et al. Underbody blast effect on the pelvis and lumbar spine: a computational study[J]. Journal of the Mechanical Behavior of Biomedical Materials, 2018, 79:9-19.
6 Elhagediab A M, Rouhana S W. Patterns of abdominal injury in frontal automotive crashes[C]∥Proceedings of the 16th International Technical Conference on the Enhanced Safety of Vehicles, Windsor Ontario, Canada, 1998:327-337.
7 Trollope M L, Stalnaker R L, Mcelhaney J H, et al. The mechanism of injury in blunt abdominal trauma[J]. The Journal of Trauma: Injury, Infection, and Critical Care, 1973, 13(11):962-970.
8 Hardy W N, Schneider L W, Rouhana S W. Abdominal impact response to rigid-bar, seatbelt, and airbag loading[C]∥SAE Paper, 2001-22-0001.
9 Ruan J S, Eljawahri R, Barbat S, et al. Biomechanical analysis of human abdominal impact responses and injuries through finite element simulations of a full human body model[C]∥SAE Paper, 2005-22-0016.
10 Champion H R, Holcomb J B, Young L A. Injuries from explosions: physics, biophysics, pathology, and required research focus[J]. Journal of Trauma, 2009, 66(5):1468-1477.
11 Ramasamy A, Hill A M, Masouros S, et al. Blast-related fracture patterns: a forensic biomechanical approach[J]. Journal of the Royal Society Interface, 2011, 8(58): 689-698.
12 AEP-55 VOL 2: 2011. Procedures for evaluating the protection level of armored vehicles—mine threat[S].
13 Dey S, Hopperstad O S, Borvik T, et al. Constitutive relation and failure criterion for three structural steels at high strain rates[J/OL]. [2020-03-25].
14 Saleh M, Edwards L. Evaluation of soil and fluid structure interaction in blast modelling of the flying plate test[J]. Computers and Structures, 2015, 151:96-114.
15 Rouhana S W, Lau I V, Ridella S A. Influence of velocity and forced compression on the severity of abdominal injury in blunt, nonpenetrating lateral impact[J]. The Journal of Trauma, 1985, 25(6):490-500.
16 Lamielle S, Vezin P, Verriest J P, et al. 3D deformation and dynamics of the human cadaver abdomen under seatbelt loading[C]∥SAE Paper, 2008-22-0011.
17 Miller M A. The biomechanical response of the lower abdomen to belt restraint loading[J]. The Journal of Trauma, 1989, 29(11): 1571-1584.
18 Snedeker J G, Barbezat M, Niederer P, et al. Strain energy density as a rupture criterion for the kidney: impact tests on porcine organs, finite element simulation, and a baseline comparison between human and porcine tissues[J]. Journal of Biomechanics, 2005, 38(5):993-1001.
19 Beillas P, Berthet F. Development of simulation based liver and spleen injury risk curves for the GHBMC detailed models[C]∥Proceedings of International Research Council on Biomechanics of Injury Conference, Athens, Greece, 2018:369-381.
20 Melvin J W, Stalnaker R L, Roberts V L, et al. Impact injury mechanisms in abdominal organs[C]∥Proceedings of the 17th Stapp Car Crash Conference, Oklahoma, USA, 1973:115-126.
21 Zhang N, Hiroo K, Zhao J. Development of injury criteria for spleen and kidney in side impacts with the full-body human model[J/OL]. [2020-03-25].
22 Sparks J L, Bolte J H, Dupaix R B, et al. Using pressure to predict liver injury risk from blunt impact[J]. Stapp Car Crash Journal, 2007, 51:402-432.
23 Kremer M A, Gustafson H M, Bolte J H, et al. Pressure-based abdominal injury criteria using isolated liver and full-body post-mortem human subject impact tests[C]∥SAE Paper, 2011-22-0012.
24 Ramachandra R, Kang Y S, Bolte J H, et al. Biomechanical responses of PMHS subjected to abdominal seatbelt loading[J]. Stapp Car Crash Journal, 2016, 60:59-87.
25 van der Horsr M J, Leerdam P J C. Experimental and numerical analysis of occupant safety in blast mine loading under vehicles[J/OL].[2020-03-26].
26 J211/1_201403. Instrumentation for impact test-part1-electronic instrumentation[S].
27 Foret-Bruno J Y, Trosseille X, Page Y, et al. Comparison of thoracic injury risk in frontal car crashes for occupant restrained without belt load limiters and those restrained with 6 kN and 4 kN belt load limiters[J]. Stapp Car Crash Journal, 2001, 45:205-224.
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