蜂窝管表层约束混凝土抗高速侵彻性能研究

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中图分类号:0383 国标学科代码:13035 文献标志码:A

Study on the high-speed penetration resistance of honeycomb tube surface constrained concrete

LI Xiaochen, JI Yuguo,LI Chao,LI Jie, JIANG Haiming,WANGMingyang,LIGan (StateKey Laboratory ofDisasterPrevention&Mitigationof Explosion& Impact, ArmyEngineeringUniversityofPLA,Nanjing2looo7,Jiangsu, China)

Abstract:Toinvestigatethepenetrationresistanceofmetalhoneycombtube-confinedconcrete structures underhypervelocity impact, penetration experiments were conducted using a two-stage light gas gun with projectile velocities near 1500m/s .The material point method (MPM) was employed to simulate the penetration processand validate the parameters of target and projectile.Thismethod wasfurtherusedtoanalyze theeffectsofhoneycombtubeparameters,including wall tickness,height, diameter,and material,on the penetrationresistanceofthe target structure.Numerical simulations showedthatMPMcan accuratelysimulate high-velocitypenetrationprocesses,with simulation results deviating fromexperimental data bylessthan 10% .Through orthogonalanalysis,thefactors influencingpenetration depth wereranked indescending orderas follows: characteristicbeepthaactestcerameteraracteristicallcknsdmateal.Foeatengte primaryinfluencing factors were identifiedas characteristicwall thickness,characteristictube depth,material,and characteristicinnerdiameter.Fortheprojectiles testedinthisstudy,optimizationresults indicatedthatacombinationof 4mm wall thickness, 150mm height, 30mm incircle diameter,and tungsten alloy demonstrated the best penetration resistance, reducing penetration depth by 25.1% compared to plain concrete. A combination of 4 mm wall thickness, 150mm height, 90mm (204号 incircle diameter,andaluminum exhibited superiorresistance to the cratering efect,decreasing crater radius by 28.7% compared to plain concrete.Multi-objective optimization analysis determined the optimal overallconfiguration to be: 4mm (204 wall thickness, 150mm height, 30mmmm incircle diameter,and aluminum.

Keywords:honeycomb tube-confinedconcrete;anti-penetrationcapability; material point method; orthogonal analysis

随着现代战争形态的演变,超高速武器技术的发展对军事防御工程提出了更高的要求[1]。(剩余16475字)

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