战斗部压力下链环网的力学行为:准静态实验与模拟

IF 0.8 Q3 ENGINEERING, MULTIDISCIPLINARY Modelling and Simulation in Engineering Pub Date : 2023-06-21 DOI:10.1155/2023/9655548
Min Wang, Shuai Zhou, Qilin Huang
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引用次数: 0

摘要

由高强度钢丝编织而成的钢丝网被用作贴花盔甲,以抵御近程武器的攻击。采用准静态实验和仿真方法,研究了战斗部压力作用下链式钢丝网的力学行为。首先,对新钻机、战斗部装置和钢丝网进行了设计;进行了压力测试;得到并分析了钢丝网的变形、断裂和压力-位移曲线。在此基础上,考虑内连接处钢丝之间的接触、战斗部与钢丝网的接触以及钢丝材料的断裂等因素,建立了数值计算方法和有限元模型。通过与试验数据的比较,表明数值方法和有限元模型能够较好地预测钢丝网在战斗部压力作用下的性能。最后,利用验证的数值方法和有限元模型对钢丝网尺寸和啮合角度参数进行了进一步研究,并对钢丝网的初始设计提出了建议。
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Mechanical Behavior of Chain-Link Wire Nets under Pressure from a Warhead: Quasistatic Experiments and Simulations
Wire nets woven from high-strength steel wires have been used as applique armor against attack by short-range weapons. In this study, the mechanical behavior of chain-link wire nets under pressure from a warhead was investigated by quasistatic experiments and simulations. First, the new rig, the warhead device, and the wire nets were designed; pressure tests were conducted; and the deformation, fracture of the wire nets, and pressure force vs. displacement curves were obtained and analyzed. Then, the numerical approach and Finite element (FE) model were developed, considering the contacts between the steel wires in the inner connections, the contacts between the warhead and the mesh of the wire nets, and the fracture of the steel wire material. By comparison with the experimental data, the numerical approach and FE model are shown to be reliable in predicting the behavior of the wire nets under pressure from a warhead. Finally, the parameters of the wire net size and the mesh angles were further investigated by using the validated numerical approach and FE model, and suggestions for the initial design of the wire nets are discussed.
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来源期刊
Modelling and Simulation in Engineering
Modelling and Simulation in Engineering ENGINEERING, MULTIDISCIPLINARY-
CiteScore
2.70
自引率
3.10%
发文量
42
审稿时长
18 weeks
期刊介绍: Modelling and Simulation in Engineering aims at providing a forum for the discussion of formalisms, methodologies and simulation tools that are intended to support the new, broader interpretation of Engineering. Competitive pressures of Global Economy have had a profound effect on the manufacturing in Europe, Japan and the USA with much of the production being outsourced. In this context the traditional interpretation of engineering profession linked to the actual manufacturing needs to be broadened to include the integration of outsourced components and the consideration of logistic, economical and human factors in the design of engineering products and services.
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