核壳式复合活性破片对间隔靶的毁伤效应

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中图分类号：O385;TJ04 国标学科代码：13035 文献标志码：A

Abstract：To enhance the damageeficiencyoffluoropolymer-based reactivefragments andbroaden their applicationrange，a novelcore-shellompositestructureactivefragmenthaseenproposed.Toimprovethestrengthofthematrixmaterial，arbon fiber was introduced via a wet mixing method. Under specific sintering conditions，two types of samples were prepared： PTFE/AI/CF tungsten powder and PTFE/A/CF tungsten ballThe basic mechanical properties of these samples were tested. The addition of tungsten powder was found to increase the dynamic compresive strength of the composite.Penetration tests were conducted on 3mm+3mm+2mm+2m m multi-layer interval aluminum targets using both types of fragments. The experimentaldata wereautomaticallprocessedusingaPython-based program，yieldingtheperforationareadeforation volume，andreactionlightintensityforeachlayerofthetargetplate.Thedamagecharacteristicsofthemulti-intervaltarget under diffrent velocityand constraint conditions were compared and analyzed.Theresults show thatthe core-shelltype fragment exhibits superiorpenetrationability.Itcanpenetrate allfourlayersofthetarget plates atlowspeeds，although the perforationareaiselativelysall，withaperforationdiameterapproximatelyO.95timesthefragmentdameter.Iotrast，te homogeneous fragment has alargerperforation area but weaker penetrationability.Its perforation diameter is about1.2l times thefragment diameter，and itcanonly penetrate threelayersof target plates at high speeds.Thesteel shellconstraint significantlyenhances thepunchingandpenetrationcapabilitiesof thefragments.Theprimaryactivereactionofthefragment occurs during impact withthesecond layer ofthetarget.Theenergyreleasereaction hasalimited efect on improving the punching effect.The differences indamage characteristicsare mainlyatributedtothemechanical propertiesofthe fragments. Thesefindings provide valuable insights for the structural design and damage effect evaluation ofreactive fragments.

Keywords： mechanics of explosion; core-shellcomposite reactive fragment; spaced target; damage effect

先进材料与新型结构的应用可大幅提升武器弹药装备的综合毁伤效应。（剩余16633字）