碳纤维增强聚合物复合材料方形蜂窝夹层结构水下爆炸动态响应数值模拟
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摘要
基于ABAQUS有限元仿真软件,建立了不同夹芯相对密度的碳纤维增强聚合物(Carbon Fiber Reinforced Polymer,CFRP)复合材料方形蜂窝夹层结构在水中爆炸冲击波载荷作用下的仿真模型,分析了结构的变形过程、夹芯的压缩特性及结构的失效及破坏情况。数值模拟结果表明,CFRP复合材料蜂窝夹芯压缩量在前面板速度降至与后面板相同时达到最大;CFRP复合材料蜂窝夹芯的最大压缩量随着初始压力的增大呈先缓慢增大后快速增大的趋势,其增大趋势在夹芯接近完全压缩时又趋于缓慢;CFRP复合材料夹层结构失效随夹芯相对密度和初始压力的变化呈现不同的模式,且其防护性能优于等重的层合结构。研究结果可以为复合材料夹层结构在水中冲击波载荷防护中的应用提供参考。
The numerical model of carbon fiber reinforced polymer(CFRP)composite sandwich plates with square honeycomb cores of different relative densities subjected to water blast is established based on finite element software ABAQUS.The deformation process,core compression characteristics and structure damage and failure modes were analyzed.The numerical results show that the core compression reaches to its peak value when the velocity of the back face sheet drops to the same as the front face sheet.The maximum core compression increases slowly with the peak pressure when the peak pressure is small and then the increasing rate switches to a higher level until the core is nearly completely compressed.The failure modes of the sandwich structures vary with the core relative density and the value of the peak pressure.The carbon fiber reinforced composite sandwich plates outperform the mass-equal laminate plates when subjected to water blast.The research can provide reference to the application of the composite sandwich structure in the protection shields against underwater shock wave loads.
The numerical model of carbon fiber reinforced polymer(CFRP)composite sandwich plates with square honeycomb cores of different relative densities subjected to water blast is established based on finite element software ABAQUS.The deformation process,core compression characteristics and structure damage and failure modes were analyzed.The numerical results show that the core compression reaches to its peak value when the velocity of the back face sheet drops to the same as the front face sheet.The maximum core compression increases slowly with the peak pressure when the peak pressure is small and then the increasing rate switches to a higher level until the core is nearly completely compressed.The failure modes of the sandwich structures vary with the core relative density and the value of the peak pressure.The carbon fiber reinforced composite sandwich plates outperform the mass-equal laminate plates when subjected to water blast.The research can provide reference to the application of the composite sandwich structure in the protection shields against underwater shock wave loads.
引文
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[20]RUSSELL B,DESHPANDE V,WADLEY H.Quasistatic deformation and failure modes of composite square honeycombs[J].Journal of Mechanics of Materials and Structures,2008,3(7):1315-1340.
[2]QIU X,DESHPANDE V S,FLECK N A.Finite element analysis of the dynamic response of clamped sandwich beams subject to shock loading[J].European Journal of Mechanics A:Solids,2003,22(6):801-814.
[3]YU J,WANG E,LI J,et al.Static and low-velocity impact behavior of sandwich beams with closed-cell aluminum-foam core in three-point bending[J].International Journal of Impact Engineering,2008,35(8):885-894.
[4]HAN B,ZHANG Z J,ZHANG Q C,et al.Recent advances in hybrid lattice-cored sandwiches for enhanced multifunctional performance[J].Extreme Mechanics Letters,2017,10:58-69.
[5]HAN B,QIN K,YU B,et al.Honeycomb-corrugation hybrid as a novel sandwich core for significantly enhanced compressive performance[J].Materials&Design,2016,93:271-282.
[6]FLECK N A,DESHPANDE V S.The resistance of clamped sandwich beams to shock loading[J].Journal of Applied Mechanics,2004,71(3):1-16.
[7]MCSHANE G J,DESHPANDE V S,FLECK N A.The underwater blast resistance of metallic sandwich beams with prismatic lattice cores[J].Journal of Applied Mechanics,2007,74(2):352-364.
[8]TILBROOK M T,DESHPANDE V S,FLECK N A.Underwater blast loading of sandwich beams:Regimes of behaviour[J].International Journal of Solids and Structures,2009,46(17):3209-3221.
[9]MORI L F,LEE S,XUE Z Y,et al.Deformation and fracture modes of sandwich structures subjected to underwater impulsive loads[J].Journal of Mechanics of Materials and Structures,2007,2(10):1981-2006.
[10]张振华,牛闯,钱海峰,等.六层金字塔点阵夹芯板结构在水下近距爆炸载荷下的冲击实验[J].中国舰船研究,2016,11(4):51-58.ZHANG Z H,NIU C,QIAN H F,et al.Impact experiment of six-layer pyramidal lattice sandwich panels subjected to near field underwater explosion[J].Chinese Journal of Ship Research,2016,11(4):51-58(in Chinese).
[11]HU Y,LI W,AN X,et al.Fabrication and mechanical behaviors of corrugated lattice truss composite sandwich panels[J].Composites Science and Technology,2016,125:114-122.
[12]XU G D,YANG F,ZENG T,et al.Bending behavior of graded corrugated truss core composite sandwich beams[J].Composite Structures,2016,138:342-351.
[13]XIONG J,MA L,STOCCHI A,et al.Bending response of carbon fiber composite sandwich beams with three dimensional honeycomb cores[J].Composite Structures,2014,108:234-242.
[14]SUN Y,GUO L C,WANG T S,et al.Bending behavior of composite sandwich structures with graded corrugated truss cores[J].Composite Structures,2018,185:446-54.
[15]RUSSELL B P,LIU T,FLECK N A,et al.Quasi-static three-point bending of carbon fiber sandwich beams with square honeycomb cores[J].Journal of Applied Mechanics,2011,78(3):2388-2399.
[16]RUSSELL B P,LIU T,FLECK N A,et al.The soft impact of composite sandwich beams with a square-honeycomb core[J].International Journal of Impact Engineering,2012,48:65-81.
[17]CHEN,J,ZHANG,W,YAO,M,et al.Vibration reduction in truss core sandwich plate with internal nonlinear energy sink[J].Composite Structures,2018,193:180-188.
[18]TAYLOR G I.The pressure and impulse of submarine explosion waves on plates[C]//The Scientific Papers of G I Taylor.Cambridge:Cambridge University Press,1963.
[19]HASHIN Z.Failure criteria for unidirectional fiber composites[J].Journal of Applied Mechanics,1980,47(2):329-334.
[20]RUSSELL B,DESHPANDE V,WADLEY H.Quasistatic deformation and failure modes of composite square honeycombs[J].Journal of Mechanics of Materials and Structures,2008,3(7):1315-1340.