Influencesoflayerorderonballisticresistanceof double-layeredthinA3steelplates
-
摘要: 在轻气炮上进行了卵形头、平头及半球形头杆弹正撞击等厚接触式双层靶的实验,得到了这几种 结构的剩余速度-初始速度曲线及弹道极限速度,研究了叠层顺序对靶体抗侵彻性能的影响。实验表明:叠层 顺序对双层靶体抗侵彻性能的影响与弹体头部形状密切相关。对于平头和半球形头弹,厚板在前、薄板在后 的靶体的弹道极限速度高于相反叠层顺序的靶体的弹道极限速度;但是对于卵形头弹,薄板在前、厚板在后的 靶体的弹道极限速度高于相反叠层顺序的靶体的弹道极限速度。叠层顺序对靶体弹道极限速度的影响主要 通过改变靶板的失效形式和靶板间的作用力实现。Abstract: Thedouble-layeredthinA3steelplateswerenormallyimpactedbytheogival-,blunt-and hemispherical-nosedprojectileswiththehelpofagasguntoinvestigatetheinfluencesoflayerorder ontheballisticresistanceandfailuremodeofthetargets.Andtheresidualandinitialvelocitiesofthe projectilesweremeasuredandthecorrespondingballisticlimitvelocitieswereobtainedbyleastsquare fittingtheRecht-Ipsonformulatothemeasuredresidualandinitialvelocities.Theexperimentaldata revealthattheeffectsoflayerorderontheballisticresistancearedependentontheprojectilenose shapes.Fortheblunt-andhemispherical-nosedprojectiles,thedouble-layeredplateswithathick frontplateandathinbackplatecangivegreaterresistancethantheoneswiththeoppositelayering order.However,fortheogival-nosedprojectiles,thedouble-layeredplateswithathinfrontplateand athickbackplateexhibitgreaterresistancethantheoneswiththeoppositelayerorder.Theinfluencesoflayerorderontheballisticresistanceresultfromthetransitionofthefailuremodesandthe interferenceforcebetweendifferentconfigurationtargets.
-
Key words:
- DengYun-fei /
- ZhangWei /
- CaoZong-sheng /
- YeNan /
- WangYang /
-
计量
- 文章访问数: 2578
- HTML全文浏览量: 166
- PDF下载量: 225
- 被引次数: 0
下载: