球形弹丸作用下钢/铝爆炸复合靶的抗侵彻性能

周楠; 王金相; 王小绪; 杭逸夫; 钱吉胜; 荣光

doi:10.11883/1001-1455(2011)05-0497-07

球形弹丸作用下钢/铝爆炸复合靶的抗侵彻性能

doi: 10.11883/1001-1455(2011)05-0497-07

1.
南京理工大学瞬态物理重点实验室,江苏南京210094;
2.
南京宝泰特种材料有限公司,江苏南京211100

基金项目:

国家自然科学基金项目(10902054)

江苏省博士后科研资助计划项目(1101003B)瞬态物理重点实验室基金项目(9140C300205110C3001)

新教师基金项目(200802881013)

详细信息

通讯作者:
王金相

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出版历程
- 刊出日期: 2011-09-25

Anti-penetrationperformancesofexplosivelyweldedsteel/aluminium platesimpactedbysphericalprojectiles

1.
ScienceandTechnologyonTransientPhysicsLaboratary,NanjingUniversityof
2.
ScienceandTechnology,Nanjing 210094,Jiangsu,China;

Funds:

NationalNaturalScienceFoundationofChina(10902054)

More Information

Corresponding author: WANG Jin-xiang

摘要

摘要: 采用14.5mm 滑膛枪发射直径6mm 的钢质球形弹丸对双层钢/铝、3层钢/铝/钢爆炸复合靶进行侵彻实验,借助LS-DYNA3D非线性有限元程序进行数值模拟,应用固连-失效模型反映层间结合,分析了不同组合形式对靶板抗侵彻性能的影响,并对毁伤机理进行初步分析。结果表明:靶板总厚度一定时,3层靶的抗侵彻性能优于双层靶;双层靶的钢面板与铝背板厚度比为约2∶1时抗侵彻性能最好。面板的毁伤机理为剪切冲塞耗能,铝背板的毁伤机理为延性扩孔,钢背板为开瓣扩孔;数值模拟同实验结果吻合良好,表明固连-失效模型可以较好地反映出层间结合对抗侵彻性能的影响。
- 爆炸力学 /
- 抗侵彻性能 /
- 固连-失效模型 /
- 爆炸复合板 /
- 毁伤机理 /
- 钢/铝复合板
Abstract: A14.5-mmslipchambergunwasusedtoshootthesphericalsteelprojectilewiththediameterof6mmtopenetrateintosteel- aluminumorsteel-aluminum-steelexplosively-weldedplates.The LS-DYNA3Dsoftwarewasappliedtosimulatethesepenetrationprocesses,andthetie-breakmodel wasusedtodescribetheinterfacesbetweentheexplosively-weldedlayers.Theeffectsofthedifferent combinationsoftheexplosively-weldedplatesontheanti-penetrationperformancesandthedamage mechanism wereanalyzed.Theresultsshowthatwhenthetotalthicknessoftheplateisconstant,the anti-penetrationperformanceofthethree-layerplateisbetterthanthatofthetwo-layerplate.Forthe two-layerplate,theoptimizedthicknessratioofthetwolayersisabout2∶1.Atthisratio,thetwolayerplate, ofwhichthefrontlayerissteel,therearlayerisaluminum,hasthebestanti-penetration performance.Thedamagemechanismofthefrontlayerisshearingandtucking.Thedamagemechanismoftherearlayerisprolongingdeformation( whenitisaluminum)andpetaldeformation(when itissteel).Andthesimulatedresultsareingoodagreementwiththeexperimentalones,sothetiebreakmodelcanreflecttheeffectoftheinterlayercombinationonanti- penetrationperformances.
- mechanicsofexplosion /
- performanceofanti-penetration /
- tie-break model /
- explosively weldedplates /
- damagemechanism /
- steel/aluminium weldedplates