In the process of military missions, special vehicles often encounter shallow buried charge threats that will greatly affect the safety of the occupants. To study the integrated effects of shallow buried charge detonation point, height-to-diameter ratio, burial inclination, weight, and other key parameters on the lower limb injuries of occupant, this study was based on the special body of a shallow buried explosive test and numerical calculation methods. The reliability of the numerical model and the load effect mechanism of the shallow burial charge were studied. Based on this, the lower limb injuries response law of occupant was analyzed with respect to each parameter. The results showed that the bottom charge load mainly came from two-stage ejection loading, in which the first stage was a strong load with short-duration local impact loading and the second stage was a weak load with long-duration extended range loading. By comparing the lower limb injury response of occupant under different charge parameters, we found that the weight of charge had the greatest effect on the extent of occupant injury, followed by the height-to-diameter ratio and burial inclination, while the detonation position had a relatively small effect on the injury magnitude. Finally, a comprehensive prediction model of the lower limb injuries of occupant was obtained by using the Latin hypercube sampling method and the least-squares method, and it was verified that the model had a good matching accuracy.
BarnatWNiezgodaTPanowiczR. Analysis of a light caterpillar vehicle loaded with blast wave from detonated IED. J KONES Powertrain Transp2010; 17(4): 27–34.
2.
GrujicicMArakereGNallagatlaH, et al. Computational investigation of blast survivability and off-road performance of an up-armoured high-mobility multi-purpose wheeled vehicle. Proc IMechE Part D: J Automobile Engineering2009; 223(3): 301–325.
3.
RamasamyAHillAMMasourosSD, et al. Evaluating the effect of vehicle modification in reducing injuries from landmine blasts. An analysis of 2212 incidents and its application for humanitarian purposes. Accid Anal Prev2011; 43: 1878–1886.
4.
GrujicicMArakereGBellWC, et al. Computational investigation of the effect of up-armouring on the reduction in occupant injury or fatality in a prototypical high-mobility multi-purpose wheeled vehicle subjected to mine blast. Proc IMechE Part D: J Automobile Engineering2009; 223(7): 903–920.
5.
RitenourAEBlackbourneLHKellyJF, et al. Incidence of primary blast injury in US military overseas contingency operations: a retrospective study. Ann Surg2010; 251(6): 1140–1144.
6.
Penn-BarwellJGBennettPMKayA, et al. Acute bilateral leg amputation following combat injury in UK servicemen. Injury2014; 45(7): 1105–1110.
7.
BergeronDWalkerRCoffeyC. Detonation of 100-gram anti-personnel mine surrogate charges in sand-A test case for computer code validation. Technical report 668, Defence Research Establishment Suffield, Ralston, AB, Canada, 1998.
8.
BørvikTOlovssonLHanssenAG, et al. A discrete particle approach to simulate the combined effect of blast and sand impact loading of steel plates. J Mech Phys Solids2011; 59(5): 940–958.
9.
RigbySEFaySDClarkeSD, et al. Measuring spatial pressure distribution from explosives buried in dry Leighton Buzzard sand. Int J Impact Eng2016; 96: 89–104.
10.
LaineLRanestadOSadnvikA, et al. Numerical simulations of anti-tank mine detonations. AIP Conf Proc2002; 620(1): 431–434.
11.
NeubergerAPelesSRittelD. Scaling the response of circular plates subjected to large and close-range spherical explosions. Part I: air-blast loading. Int J Impact Eng2007; 34(5): 859–873.
12.
JacobNChungSKYNurickGN, et al. Scaling aspects of quadrangular plates subjected to localised blast loads-experiments and predictions. Int J Impact Eng2004; 30(8–9): 1179–1208.
13.
MarkoseARaoCL. Mechanical response of V shaped plates under blast loading. Thin-Walled Struct2017; 115: 12–20.
14.
JohnsonTEBasudharA. A metamodel-based shape optimization approach for shallow-buried blast-loaded flexible underbody targets. Int J Impact Eng2015; 75: 229–240.
15.
ChungKYSLangdonGSNurickGN, et al. Response of V-shape plates to localised blast load: experiments and numerical simulation. Int J Impact Eng2012; 46: 97–109.
16.
KangHGuoXHZhangQM, et al. Predicting the behavior of armored plates under shallow-buried landmine explosion using incomplete scaling models. Int J Impact Eng2021; 156: 103970.
17.
XiaoWAndraeMGebbekenN. Influence of charge shape and point of detonation of high explosive cylinders detonated on ground surface on blast-resistant design. Int J Mech Sci2020; 181: 105697.
18.
GanLZongZHGaoC, et al. Influence of shape of cuboid explosives on response of plates subjected to blast loads. Thin-Walled Struct2022; 174: 109077.
19.
WuCFattoriGWhittakerA, et al. Investigation of air-blast effects from spherical-and cylindrical-shaped charges. Int J Protect Struct2010; 1: 345–362.
20.
Procedures for evaluating the protection level of logistic and light armored vehicles – mine threat. Allied Engineering Publication AEP-55, Vol. 2, NATO, Brussels, Belgium, 2011.
21.
XiaoWAndraeMGebbekenN. Development of a new empirical formula for prediction of triple point path. Shock Wave2020; 30: 677–686.
22.
PengQZhouDYWuH, et al. Experimental and numerical studies on dynamic behaviors of RC slabs under long-duration near-planar explosion loadings. Int J Impact Eng2022; 160: 104085.
23.
GuoQZhouYWangX, et al. Numerical simulations and experimental analysis of a vehicle cabin and its occupants subjected to a mine blast. Proc IMechE Part D: J Automobile Engineering2016; 230(5): 623–631.
24.
SunXWTaoXXWangXH, et al. Study on the anti-explosion characteristics and optimized design of negative Poisson’s ratio honeycomb materials. Explos Shock2020; 40(9): 66–76.
25.
YangXTZhouYBLiP, et al. Analysis of the effect of matrix material on the explosive impact resistance of honeycomb structures. Sci Technol Eng2019; 19(29): 16–20.
26.
SirigiriVKGudigaVYGattuUS, et al. A review on Johnson Cook material model. Mater Today Proc2022; 62(6): 3450–3456.
27.
CongMZhouYBZhangM, et al. Design and optimization of multi-V hulls of light armoured vehicles under blast loads. Thin-Walled Struct2021; 168: 108311.
28.
WangZZhouYWangX, et al. Multi-objective optimization design of a multi-layer honeycomb sandwich structure under blast loading. Proc IMechE Part D: J Automobile Engineering2017; 231(10): 1449–1458.
29.
YangGDFanYGaoHW, et al. Blast resistance of air-backed RC slab against underwater contact explosion. Def Technol2022; 28: 236–250.
30.
ZhangXZhouYWangX, et al. Modelling and analysis of the vehicle underbody and the occupants subjected to a shallow-buried-mine blast impulse. Proc IMechE, Part D: J Automobile Engineering2017; 231(2): 214–224.
31.
WangJ. Simulation of landmine explosion using LS-Dyna 3D Software: benchmark work of simulation of explosion in soil and air, 2001.
32.
LiuXRXiaoSSunXX, et al. Research on lower extremity injury characteristics of elderly pedestrians under different impact loads. Int J Crashworthiness2022; 27(5): 1287–1297.
33.
MoisesJM. Artificial neural networks for passive safety assessment. Eng Lett2022; 30(1): 289–297.
34.
ChenSYThompsonAJDodwellTJ, et al. Fast optimisation of the formability of dry fabric preforms: a Bayesian approach. Mater Des2023; 230: 111986.
35.
HaoWQTanLYangXG, et al. A physics-informed machine learning approach for notch fatigue evaluation of alloys used in aerospace. Int J Fatigue2023; 170: 107536.
36.
SaundersLJRussellRACrabbDP. The coefficient of determination: what determines a useful R2 statistic. Invest Ophthalmol Vis Sci2012; 53(11): 6830–6832.
