破片与冲击波对舰船板架的耦合毁伤效应试验研究
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摘要
为研究舰船板架在破片与冲击波耦合作用下的变形及破损,开展了舰船板架在两种非标准圆柱形战斗部爆炸载荷作用下的毁伤效应试验。结果表明,光板在破片与冲击波耦合作用下的主要破坏模式有两种:花瓣弯曲破坏和拉伸断裂破坏。针对文中试验模型,当比例距离小于0.3时,光板出现了典型的花瓣弯曲破坏;比例距离处于0.3～0.6之间时,光板出现了典型的拉伸断裂破坏;比例距离大于0.6时,破片与冲击波耦合作用不明显。弹孔在冲击波作用下极易发生连接并形成花瓣大开口;加筋板上的筋在受到耦合载荷作用下容易出现一定程度的侧倾、弯曲和鼓起变形,但并没有断裂。
In order to study the deformation and damage of ship stiffened plates under the synergistic effects of fragments and shock wave, a series of damage tests of ship stiffened plates with two kinds of nonstandard cylindrical warheads were implemented. The results show that when subjected to the synergistic effects of fragments and shock wave, plane plates have two main damage modes: petals bending failure and tensile rupture failure. According to the experiment model in this paper, while the scaled distance below 0.3,the petals bending failure appears on the plane plates; while the scaled distance between 0.3 and 0.6, the tensile rupture failure appears on the planes plates; while the scaled distance above 0.6, the synergistic effects of fragments and shock wave is not obvious. Large petal holes are easily formed while penetrated holes connected under the shock wave. The ribs on the stiffened plates tend to side bias, bend and plumping deformation under the synergistic loadings, but do not break.
In order to study the deformation and damage of ship stiffened plates under the synergistic effects of fragments and shock wave, a series of damage tests of ship stiffened plates with two kinds of nonstandard cylindrical warheads were implemented. The results show that when subjected to the synergistic effects of fragments and shock wave, plane plates have two main damage modes: petals bending failure and tensile rupture failure. According to the experiment model in this paper, while the scaled distance below 0.3,the petals bending failure appears on the plane plates; while the scaled distance between 0.3 and 0.6, the tensile rupture failure appears on the planes plates; while the scaled distance above 0.6, the synergistic effects of fragments and shock wave is not obvious. Large petal holes are easily formed while penetrated holes connected under the shock wave. The ribs on the stiffened plates tend to side bias, bend and plumping deformation under the synergistic loadings, but do not break.
引文
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[2]Qian L,Qu M.Study on terminal effects of dense fragment cluster impact on armor plate.Part II:numerical simulations[J].International Journal of Impact Engineering,2005,31(6):769-780.
[3]Nurick G N,Olson M D,Fagnan J R,et al.Deformation and tearing of blast-loaded stiffened square plates[J].International Journal of Impact Engineering,1995,16(2):273-291.
[4]Nurick G N,Gelman M E,Marshall N S.Tearing of blast loaded plates with clamped boundary conditions[J].International Journal of Impact Engineering,1996,18(7):803-827.
[5]Nurick G N,Shave G C.The deformation and tearing of thin square plates subjected to impulsive loads-An experimental study[J].International Journal of Impact Engineering,1996,18(1):99-116.
[6]Hu W,Chen Z.Model-based simulation of the synergistic effects of blast and fragmentation on a concrete wall using the MPM[J].International Journal of Impact Engineering,2006,32(12):2066-2096.
[7]Lepp覿nen J.Experiments and numerical analyses of blast and fragment impacts on concrete[J].International Journal of Impact Engineering,2005,31(7):843-860.
[8]Nystr觟m U,Gylltoft K.Numerical studies of the combined effects of blast and fragment loading[J].International Journal of Impact Engineering,2009,36(8):995-1005.
[9]姚志敏,雷灏,尉广军,等.破片和冲击波复合作用下靶板毁伤仿真[J].火力与指挥控制,2014,39(7):152-154.Yao Zhimin,Lei Hao,Yu Guangjun,et al.Damage simulation of target metal plate by fragments and shock waves[J].Fire Control&Command Control,2014,39(7):152-154.
[10]Kong X S,Wu W G,Li J,et al.Experimental and numerical investigation on a multi-layer protective structure under the synergistic effect of blast and fragment loadings[J].International Journal of Impact Engineering,2014,65(2):146-162.
[11]张成亮,朱锡,侯海量,等.爆炸冲击波与高速破片对夹层结构的联合毁伤效应试验研究[J].振动与冲击,2014,33(15):184-188.Zhang Chengliang,Zhu Xi,Hou Hailiang,et al.Tests for combined damage effect of blast waves and high velocity fragments on composite sandwich plates[J].Journal of Vibration and Shock,2014,33(15):184-188.
[12]侯海量,张成亮,李茂,等.冲击波和高速破片联合作用下夹芯复合舱壁结构的毁伤特性[J].爆炸与冲击,2015,35(1):116-123.Hou Hailiang,Zhang Chengliang,Li Mao,et al.Damage characteristics of sandwich bulkhead under the impact of shock and high-velocity fragments[J].Explosion and Shock Waves,2015,35(1):116-123.
[13]杜志鹏,吴震,柴勤芳,等.破片与冲击波对固支方板的耦合毁伤效应数值研究[J].船舶力学,2017,21(5):595-602.Du Zhipeng,Wu Zhen,Chai Qinfang,et al.Numerical studies of clamped square plate under the synergistic effects of fragments and shock wave[J].Journal of Ship Mechanics,2017,21(5):595-602.
[14]陈长海,侯海量,朱锡,等.破片式战斗部空中爆炸下冲击波与破片的耦合作用[J].高压物理学报,2018,32(1):1-9.Chen Changhai,Hou Hailiang,Zhu Xi,et al.Coupling action spans for air-blast waves and fragments by fragmentation warheads exploding in air[J].Journal of Heavy Pressure Physics,2018,32(1):1-9.
[15]赵玲清.冲击波与破片联合作用下钢筋混凝土梁板构件的损伤效应[D].天津:天津大学,2017.Zhao Lingqing.Damage effects of reinforced concrete beam&slab under the combined impact of blast and fragments[D].Tianjin:Tianjin University,2017.