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首页> 外文期刊>Multidiscipline modeling in materials and structures >A computational analysis of survivability of a pick-up truck subjected to mine detonation loads
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A computational analysis of survivability of a pick-up truck subjected to mine detonation loads

机译：矿用爆轰载荷下皮卡车生存能力的计算分析

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Purpose - The purpose of this paper is to analyze, computationally, the kinematic response (including large-scale rotation and deformation, buckling, plastic yielding, failure initiation, fracture and fragmentation) of a pick-up truck to the detonation of a landmine (shallow-buried in one of six different soils, i.e. either sand, clay-laden sand or sandy gravel, each in either dry or water-saturated conditions, and detonated underneath the vehicle) using ANSYS/Autodyn, a general-purpose transient non-linear dynamics analysis software. Design/methodology/approach - The computational analysis, using ANSYS/Autodyn, a general-purpose transient non-linear dynamics analysis software, included the interactions of the . gaseeus detonation products and the sand ejecta with the vehicle and the transient non-linear dynamics response of the vehicle. Findings - The results obtained clearly show the differences in the blast loads resulting from the landmine detonation in dry and saturated sand, as well as the associated kinematic response of the vehicle. It was also found that the low frequency content of the blast loads which can match the whole-vehicle eigen modes is quite small so that resonance plays a minor role in the kinematic/ballistic response of the vehicle. Furthermore, it was demonstrated that mine blast analytical loading functions which are often used in transient non-linear dynamic analyses have limited value when used in the analyses of a complete vehicle. Originality/value - This is the first time that the kinematic response of a pick-up truck to the detonation of a shallow-buried landmine (using a full-scale/complete model) has been analyzed computationally.
机译：目的-本文的目的是通过计算分析轻型货车对地雷爆炸的运动响应（包括大范围的旋转和变形，屈曲，塑性屈服，破坏起始，破裂和破碎）。使用ANSYS / Autodyn，一种通用的瞬态非爆轰炸药，将其浅埋在六种不同的土壤之一中，即沙子，含粘土的沙子或砂砾，分别处于干燥或水饱和条件下，并在车辆下方引爆。线性动力学分析软件。设计/方法/方法-使用ANSYS / Autodyn（一种通用的瞬态非线性动力学分析软件）进行的计算分析包括的相互作用。车辆的气体爆炸，气体爆炸以及车辆的瞬态非线性动力学响应。发现-获得的结果清楚地表明了在干燥和饱和的沙子中，地雷爆炸引起的爆炸载荷的差异，以及相关的车辆运动学响应。还发现可以与整车本征模式相匹配的爆炸载荷的低频成分非常小，因此共振在车辆的运动/弹道响应中起着较小的作用。此外，证明了在用于整车分析时，经常用于瞬态非线性动态分析中的地雷爆炸分析加载函数具有有限的价值。原创性/价值-这是首次对卡车对浅埋地雷爆炸的运动学响应（使用全尺寸/完整模型）进行了计算分析。

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