结构间隙对芳纶纤维增强复合装甲结构抗侵彻性能的影响
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摘要
采用由5 mm厚的前置钢板、60 kg/m~2面密度的芳纶纤维增强复合材料层合板抗弹芯层、10 mm厚的后置钢板构成的夹芯式复合装甲结构,模拟舰船舷侧复合夹芯舱壁结构。根据面板与芯层间有无50 mm的间隙,将复合装甲结构分为无间隙式、后间隙式、前后间隙式3种结构型式。开展了复合装甲结构在质量40 g、最高初速约为1 630 m/s的高速圆柱体弹丸冲击下的抗侵彻性能实验,提出了钢质面板和芳纶纤维增强复合材料层合板芯层的破坏模式,研究了复合装甲结构的抗侵彻机理,对比分析了同一穿甲载荷冲击下3种复合装甲结构的抗弹性能。结果表明:前置面板的破坏模式主要为剪切冲塞;面板与芯层之间的间隙对芳纶纤维增强复合材料板的破坏模式及钢质背板的变形量影响较大、对前置面板影响较小;同一穿甲载荷冲击下,间距的存在有利于复合装甲结构综合抗侵彻性能的提高。
Three different composite armor systems with 50 mm width or no interspace between different parts were designed to simulate sandwich bulkhead,in which 5 mm-thick steel plate and 10 mm-thick steel plate are used as front and back plates,respectively,and the para-aramid fiber-reinforced plate( AFRP) with areal density of about 60 kg/m~2 is used as sandwich core. Ballistic experiments are carried out to study the anti-penetration performance of the three para-aramid fiber-reinforced composite armor systems subjected to normal impact by 40 g cylindrical fragments at about 1 630 m/s. The failure modes of surface plate and sandwich core of the composite armor system are presented,the anti-penetration mechanisms of the composite armor systems are analyzed,and the anti-penetration performances of the three composite armor systems are compared. The experimental results show that interspace between differentparts has significant effect on the failure modes of AFRP and anti-penetration performance of composite armor system.
Three different composite armor systems with 50 mm width or no interspace between different parts were designed to simulate sandwich bulkhead,in which 5 mm-thick steel plate and 10 mm-thick steel plate are used as front and back plates,respectively,and the para-aramid fiber-reinforced plate( AFRP) with areal density of about 60 kg/m~2 is used as sandwich core. Ballistic experiments are carried out to study the anti-penetration performance of the three para-aramid fiber-reinforced composite armor systems subjected to normal impact by 40 g cylindrical fragments at about 1 630 m/s. The failure modes of surface plate and sandwich core of the composite armor system are presented,the anti-penetration mechanisms of the composite armor systems are analyzed,and the anti-penetration performances of the three composite armor systems are compared. The experimental results show that interspace between differentparts has significant effect on the failure modes of AFRP and anti-penetration performance of composite armor system.
引文
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[20]谢恒,吕振华.破片侵彻纤维复合材料板的有限元数值模拟[J].清华大学学报:自然科学版,2012,52(1):96-101.XIE Heng,LYU Zhen-hua.Finite element simulation of FRP plates impacted by fragments[J].Journal of Tsinghua University:Science&Technology,2012,52(1):96-101.(in Chinese)
[2]Goldsmith W.Non-ideal projectile impact on targets[J].International Journal of Impact Engineering,1999,22(2/3):95-395.
[3]Wen H M.Predicting the penetration and perforation of FRP laminates struck normally by projectiles with different nose shapes[J].Composite Structures,2000,49(3):321-329.
[4]Gellert E P,Cimpoeru S J,Woodward R L.A study of the effect of target thickness on the ballistic perforation of glass-reinforced plastic composites[J].International Journal of Impact Engineering,2004,24(5):445-456.
[5]王晓强,朱锡,梅志远.纤维增强复合材料抗侵彻研究综述[J].玻璃钢/复合材料,2008(5):47-55.WANG Xiao-qiang,ZHU Xi,MEI Zhi-yuan.The development of fiber-reinforced composites under ballistic impact[J].Fiber Reinforced Plastics/Composites,2008(5):47-55.(in Chinese)
[6]王元博,王肖钧,胡秀章,等.Kevlar层合材料抗弹性能研究[J].工程力学,2005,22(3):76-81.WANG Yuan-bo,WANG Xiao-jun,HU Xiu-zhang,et al.Experimental study of ballistic resistance of Kevlar laminates[J].Engineering Mechanics,2005,22(3):76-81.(in Chinese)
[7]梅志远,朱锡,张立军.FRC层合板抗高速冲击机理研究[J].复合材料学报,2006,23(2):143-149.MEI Zhi-yuan,ZHU Xi,ZHANG Li-jun.Ballistic protective mechanism of FRC laminates[J].Acta Materiae Compositae Sinica,2006,23(2):143-149.(in Chinese)
[8]虢忠仁,杜文泽,钟蔚华,等.芳纶复合材料对球形弹丸的抗贯穿性能研究[J].兵工学报,2010,31(4):458-463.GUO Zhong-ren,DU Wen-ze,ZHONG Wei-hua,et al.Anti-perforation performance of aramid composite against spheric projectile[J].Acta Armamentarii,2010,31(4):458-463.(in Chinese)
[9]彭刚,王绪财,刘原栋,等.复合材料层板的抗贯穿机理与模拟研究[J].爆炸与冲击,2012,32(4):337-345.PENG Gang,WANG Xu-cai,LIU Yuan-dong,et al.Research on anti-perforating mechanism and simulation of composite laminates[J].Explosion and Shock Waves,2012,32(4):337-345.(in Chinese)
[10]覃悦,文鹤鸣,何涛.卵形弹丸撞击下FRP层合板的侵彻和穿透[J].复合材料学报,2007,24(2):131-136.QIN Yue,WEN He-ming,HE Tao.Penetration and perforation of FRP laminates under normal impact by ogival-nosed projectiles[J].Acta Materiae Compositae Sinica,2007,24(2):131-136.(in Chinese)
[11]王晓强,朱锡,梅志远,等.超高分子量聚乙烯纤维增强层合厚板抗弹性能实验研究[J].爆炸与冲击,2009,29(1):29-34.WANG Xiao-qiang,ZHU Xi,MEI Zhi-yuan,et al.Ballistic performances of ultra-high molecular weight polyethylene fiber-reinforced thick laminated plates[J].Explosion and Shock Waves,2009,29(1):29-34.(in Chinese)
[12]朱锡,梅志远,刘润泉,等.舰用轻型复合装甲结构及其抗弹实验研究[J].爆炸与冲击,2003,23(1):61-66.ZHU Xi,MEI Zhi-yuan,LIU Run-quan,et al.Warship's light composite armor structure resistibility for ballistic impact[J].Explosion and Shock Waves,2003,23(1):61-66.(in Chinese)
[13]陈长海,朱锡,侯海量,等.结构形式对舰船舷侧复合装甲结构抗穿甲性能的影响研究[J].振动与冲击,2013,32(14):59-63.CHEN Chang-hai,ZHU Xi,HOU Hai-liang,et al.Influence of structural configuration on perforation-resistance of a warship topside composite armor system[J].Journal of Vibration and Shock,2013,32(14):59-63.
[14]徐豫新,王树山,严文康,等.纤维增强复合材料三明治板的破片穿甲实验[J].复合材料学报,2012,29(3):72-78.XU Yu-xin,WANG Shu-shan,YAN Wen-kang,et al.Armorpiercing experiment on fragment against sandwich plate with fiber reinforced composite cores[J].Acta Materiae Compositae Sinica,2012,29(3):72-78.(in Chinese)
[15]O'Masta M R,Deshpande V S,Wadley H N G.Mechanisms of projectile penetration in dyneema encapsulated aluminum structures[J].International Journal of Impact Engineering,2014,74:16-35.
[16]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毁伤特性实验研究[J].爆炸与冲击,2015,35(1):116-123.HOU Hai-liang,ZHANG Cheng-liang,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.(in Chinese)
[17]李典,朱锡,侯海量,等.近距爆炸破片作用下芳纶纤维夹芯复合舱壁结构毁伤特性实验研究[J].兵工学报,2016,37(8):1436-1442.LI Dian,ZHU Xi,HOU Hai-liang,et al.Experimental research on damage of aramid fiber sandwich bulkhead under close range explosion and fragment loadings[J].Acta Armamentarii,2016,37(8):1436-1442.(in Chinese)
[18]Qian L X,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.
[19]王礼立.应力波基础[M].第2版.北京:国防工业出版社,2010.WANG Li-li.Foundation of stress wave[M].2nd ed.Beijing:National Defense Industry Press,2010.(in Chinese)
[20]谢恒,吕振华.破片侵彻纤维复合材料板的有限元数值模拟[J].清华大学学报:自然科学版,2012,52(1):96-101.XIE Heng,LYU Zhen-hua.Finite element simulation of FRP plates impacted by fragments[J].Journal of Tsinghua University:Science&Technology,2012,52(1):96-101.(in Chinese)