Analysisonperforationofductilemetallicplates byarigidsharp-nosedprojectile
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摘要: 基于延性扩孔模式,分析了尖头弹穿甲韧性金属靶的Chen-and-Li模型和Forrestal-and-Warren模 型。结果表明,2种模型形式相同但适用范围不同,差异源于分别应用球形和柱形动态空腔膨胀理论。将2 种模型与相关尖头弹穿甲金属靶的实验数据做了比较,对应于尖头刚性弹对韧性金属靶的延性扩孔穿甲,理 论分析与实验结果吻合。Abstract: Basedonthemodeofductileholeexpansion,theChen-and-LimodelandForrestal-and-Warrenmodelwereanalyzedforarigidsharp- nosedprojectileperforatingductilemetallictargetplates.Analysisshowsthatthesetwomodelshavethesameformula, buttheirapplicablerangesaredifferent whichisduetotheiremployingthecylindricalcavityexpansiontheoryandsphericalcavityexpansion theory,respectively.Andthesetwomodelswerecomparedwiththeexperimentalresultsfromthe perforationofaluminumplatesbyrigidsharp-nosedprojectiles.Thetheoreticalresultsbythesetwo modelsareinagreementwiththeexperimentalresults.
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