Anti-penetrationcharacteristicsofRPCshelterplates

withirregularbarriersonsurfaces

CHEN Wan-xiang; GUO Zhi-kun

doi:10.11883/1001-1455(2010)01-0051-07

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CHEN Wan-xiang, GUO Zhi-kun. Anti-penetrationcharacteristicsofRPCshelterplateswithirregularbarriersonsurfaces[J]. Explosion And Shock Waves, 2010, 30(1): 51-57. doi: 10.11883/1001-1455(2010)01-0051-07

Citation:

CHEN Wan-xiang, GUO Zhi-kun. Anti-penetrationcharacteristicsofRPCshelterplates withirregularbarriersonsurfaces[J]. Explosion And Shock Waves, 2010, 30(1): 51-57. doi: 10.11883/1001-1455(2010)01-0051-07

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Anti-penetrationcharacteristicsofRPCshelterplates withirregularbarriersonsurfaces

doi: 10.11883/1001-1455(2010)01-0051-07

CHEN Wan-xiang^,,
GUO Zhi-kun

1.
EngineeringInstituteofCorpsofEngineers,PLAUniversityofScienceandTechnology,

Funds:

NationalNaturalScienceFoundationofChina(50908228)

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Corresponding author: CHEN Wan-xiang
Publish Date: 2010-01-25

Abstract

Abstract

Areactivepowerconcrete(RPC)shelterplatewasproposedtodevelopanewprotective technologyforresistingpenetrationweapons.Ballisticexperimentswiththeimpactvelocitiesof320~ 705m/swerecarriedoutbyusingsemi-armour-piercingprojectileswiththediameterof57mmtoinvestigatetheanti- penetrationcapacitiesofRPCshelterplateswithirregularbarriersontheirsurfaces comprisingyaw-inducinglayersandbasalplates.Someexperimentalresultswereobtainedsuchas failurecharacteristics,deflexionanglesand maximalpenetrationdepthsofprojectiles,andfailure modesoftargets.Andthesimplifiedcalculationalformulaforpenetrationdepthwasgiven.ThepenetrationpowersoftheprojectileswereweakenedobviouslybyirregularbarriersconsistingofRPCwith highstrengthandexcellenttoughness.Differentbucklingdeformationsandfracturesoccurredwhen projectilesimpactedonirregularbarriers.Thetrajectoriesweredeflexedandpenetrationdepthswere reducedgreatly.Thedeflexionanglesofprojectilesincreasedfirstlyanddecreasedsubsequentlywith theincreaseoftheimpactvelocity,themaximaldeflexionanglewas61.4inthecaseof505m/simpactvelocity. Therewerenotanyimpactcraterswithlargesizeoranyscabbingafterballisticexperiments, andtheintegralitiesoftargetsweregoodforasmallquantityofcracks.Thecalculationalresultsareingoodagreementwiththeexperimentaldata, andthesimplifiedformulaisfeasible.
- mechanicsofexplosion,
- anti-penetration,
- ballisticexperiment,
- reactivepowderconcrete,
- yaw