2024 Vol. 44, No. 3

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Cover
2024, 44(3)
Abstract:
2024, 44(3): 1-2.
Abstract:
Special: Fast Algorithm and Simulation Technology for Damage
2024, 44(3): 031400. doi: 10.11883/bzycj-2024-0057
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A study on dynamic mechanical properties of Al0.3CoCrFeNi high-entropy alloy considering crystal orientation
CHEN Jialin, LI Shutao, CHEN Yeqing
2024, 44(3): 031401. doi: 10.11883/bzycj-2023-0324
Abstract:
High-entropy alloy (HEA) materials exhibit different failure modes and mechanical properties under high strain rate dynamic response. Because its potential mechanism cannot be fully explained from a macro perspective, it is necessary to study the ato...
Special: Fast Algorithm and Simulation Technology for Damagem and Simulation Technology for Damage
A fast equivalent-isotropic-plate model for stiffened circular plates under pulse loading
JIAO Chongxi, ZHONG Wei, WANG Mu, MEI Xijie, QIU Xinming
2024, 44(3): 031402. doi: 10.11883/bzycj-2023-0308
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Stiffened panels are widely used in the explosion and impact protection, thus a fast and accurate method for solving their dynamic response is highly desired in engineering. Based on the idea of stiffness superposition, a novel equivalent-isotropic-p...
Power characteristics of drum-shaped warheads under multi-point detonations
LI Haokai, FENG Yuxiang, LI Yuan, SUO Tao
2024, 44(3): 031403. doi: 10.11883/bzycj-2023-0317
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To adjust the fragment lethality field of the anti-ground ammunition, the paper studies the power characteristics of a drum-shaped warhead under static and dynamic detonation. Aiming at the ground armored vehicles, the damage efficiency of the drum-s...
An assessment method for ammunition damage effectiveness based on multiple rectangular cookie cutter function
DAI Quan, LI Xiangdong, ZHOU Lanwei, JI Yangziyi
2024, 44(3): 031404. doi: 10.11883/bzycj-2023-0316
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When assessing the damage effectiveness of blast-fragmentation ammunitions against ground targets, the traditional approach involves calculating the overall target damage probability based on component damage criteria. Typically, the shooting line tr...
A calculation method for ship structure damage under cabin explosion
WU Xingxing, ZHANG Lunping, ZOU Haoyang, ZHANG Nu, WANG Haikun, LIU Jianhu
2024, 44(3): 031405. doi: 10.11883/bzycj-2023-0289
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The explosion of missiles penetrating the interior cabin could cause extensive damage to the warship structure. How to evaluate the damage range of the ship structure under the coupling of multiple loads in the inner explosion is a big challenge for ...
Outlier detection algorithms for penetration depth data of concrete targets combined with prior knowledge
QIN Shuai, LIU Hao, CHEN Li, ZHANG Lei
2024, 44(3): 031406. doi: 10.11883/bzycj-2023-0287
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Data quality is the basis for the validity and accuracy of data-driven models, and there may be a large number of anomalies in the raw concrete targets penetration depth data. Therefore, to ensure the accuracy of the subsequent data-driven model, it ...
A remote sensing imagery-based model for assessment of building damage induced by large-equivalent explosions
LI Heng, MA Guorui, LIU Yudi, ZHANG Haiming
2024, 44(3): 031407. doi: 10.11883/bzycj-2023-0331
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To address challenges in the field of large-scale explosive building damage assessment, where the explosion process is too complex for high-precision numerical simulation, and relying solely on change detection from remote sensing imagery cannot capt...
Explosion Physics
The law of gas explosion and gas-liquid coupling in urban underground drainage pipelines
ZHOU Gang, KONG Yang, CUI Yangyang, QIAN Xinming, FU Liye, ZHANG Qi
2024, 44(3): 032101. doi: 10.11883/bzycj-2023-0123
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There are frequent gas explosion accidents in urban rain and sewage drainage pipes, which pose a serious threat to people’s lives and property safety. To study the propagation characteristics of gas explosion and the law of gas-liquid two-phase coupl...
Influence of altitude on the propagation of explosion shock waves in a long straight tunnel
LI Yong, LUO Hongyu, FENG Xiaowei, HU Yupeng, ZHANG Jun, LI Haitao
2024, 44(3): 032201. doi: 10.11883/bzycj-2023-0230
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To effectively characterize the propagation characteristics of the explosion shock waves in tunnels at different altitudes, nonlinear explicit dynamics finite element software AUTODYN and dimensional analysis were used to study the influence of altit...
Explosion characteristics of thermobaric explosive (TBX) detonated inside a tunnel and the related influential factors
JI Yuguo, ZHANG Guokai, LI Gan, DENG Shuxin, YAO Jian, LI Jie, WANG Mingyang, HE Yong
2024, 44(3): 032301. doi: 10.11883/bzycj-2023-0011
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Multiple damage effects can be generated when thermobaric explosives (TBX) detonated inside a tunnel, posing serious threats to people and equipment. Based on the explosion tests with different explosive masses, the explosion characteristics of the T...
A numerical study of the impact mechanism of bottom gap on charge launch safety
WU Shibo, CHEN Weidong, LU Shengzhuo, WU Peiwen, SUN Mingwu, JIAO Ziteng
2024, 44(3): 032901. doi: 10.11883/bzycj-2023-0222
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The issue of charge launch safety under the environment of high rifling pressure, high overload and high initial velocity has been one of the research hot topics. To investigate the impact mechanism of bottom gap on charge launch safety, a thermo-mec...
Impact Dynamics
Peridynamic simulation of impact damage to 3D printedlattice sandwich structure
CHEN Yang, WANG Zhaoxi, ZHAI Shihui, SHENG Peng, WANG Zhelan, ZHU Mingliang
2024, 44(3): 033101. doi: 10.11883/bzycj-2023-0124
Abstract:
Lattice sandwich structures often exhibit discontinuous characteristics under impact, with damage behaviors involving multiple scales, from micro-scale cell fracture to macro-scale structural collapse. Traditional methods based on continuum mechanics...
Experimental Techniques & Numerical Methods
An improved Asay foil method for measuring areal density of ejecta under complex loading conditions
WANG Weirong, CHEN Shuyang, WANG Xuejun, ZHAO Xinwen, HUANG Shizhang, LI Xinzhu, WU Qiang
2024, 44(3): 034101. doi: 10.11883/bzycj-2023-0089
Abstract:
The Asay foil has been a widely applied diagnostic in ejecta measurement since its design was first reported in 1976. An Asay foil is a foil of a known mass (or areal density), whose velocity changed when it is impacted by ejecta. The Foil velocity i...
Applied Explosion Mechanics
A study on explosive load history of rock blasting considering rock failure zones
SUN Pengchang, YANG Guangdong, LU Wenbo, FAN Yong, MENG Haili, XUE Li
2024, 44(3): 035201. doi: 10.11883/bzycj-2023-0206
Abstract:
Due to the deficiency that dynamic processes of rock blasting and rock failure zones around a blasthole are not simultaneously considered, the explosion load history of rock blasting considering rock failure zones and its reliability were investigate...