Kev siv cov phaj ceramic hnub rov qab mus rau xyoo 1918, tom qab kawg ntawm Kev Tsov Rog Thoob Ntiaj Teb thib 1, thaum Colonel Newell Monroe Hopkins pom tias txheej txheej steel armor nrog ceramic glaze yuav txhim khu kev tiv thaiv zoo heev.
Txawm hais tias cov khoom ntawm cov khoom siv ceramic tau pom thaum ntxov, nws tsis ntev ua ntej lawv tau siv rau kev ua tub rog.
Thawj lub teb chaws uas siv cov cuab yeej siv ceramic yog cov qub Soviet Union, thiab cov tub rog Asmeskas tau siv nws ntau heev thaum Nyab Laj Tsov Rog, tab sis cov cuab yeej ceramic tsuas yog tawm los ua cov cuab yeej tiv thaiv tus kheej hauv xyoo tas los no vim yog cov nqi ntxov thiab teeb meem kev lag luam.
Qhov tseeb, alumina ceramic tau siv rau hauv lub cev armor nyob rau hauv UK xyoo 1980, thiab US pab tub rog loj-tsim thawj tiag tiag "plug-in board" SAPI nyob rau hauv lub 1990s, uas yog ib tug revolutionary tiv thaiv khoom nyob rau hauv lub sij hawm ntawd.Nws tus qauv tiv thaiv NIJIII tuaj yeem cuam tshuam cov mos txwv feem ntau uas tuaj yeem hem cov tub rog, tab sis Asmeskas tub rog tseem tsis txaus siab rau qhov no.ESAPI yug.
ESAPI
Thaum lub sij hawm, ESAPI txoj kev tiv thaiv tsis yog ntau dhau ntawm hack, thiab NIJIV qib ntawm kev tiv thaiv ua rau nws sawv thiab cawm cov tub rog suav tsis txheeb.Yuav ua li cas nws yog tej zaum tsis yog ib tug ntau ntawm cov xim.
Yuav kom nkag siab tias ESAPI ua haujlwm li cas, peb yuav tsum nkag siab nws cov qauv ua ntej.Feem ntau cov khoom siv sib xyaw ua ke yog lub hom phiaj ceramic + hlau / tsis yog hlau rov qab lub hom phiaj, thiab US tub rog ESAPI kuj siv cov qauv no.
Hloov chaw ntawm kev siv silicon carbide ceramic uas ua haujlwm thiab yog "kev lag luam", US Army siv cov khoom kim heev boron carbide ceramic rau ESAPI.Ntawm lub dav hlau rov qab, Asmeskas tub rog siv UHMW-PE, uas tseem kim heev thaum lub sijhawm.Tus nqi ntawm UHMW-PE thaum ntxov txawm tshaj li ntawm BORON carbide.
Nco tseg: vim yog cov khoom sib txawv thiab cov txheej txheem, kevlar kuj tseem siv tau los ua cov phaj rov qab los ntawm Asmeskas cov tub rog.
Hom ntawm mos mos ceramics:
Bulletproof ceramics, tseem hu ua structural ceramics, muaj siab hardness, siab modulus yam ntxwv, feem ntau yog siv rau hlau abrasion, xws li sib tsoo ceramic pob, ceramic milling cuab yeej lub taub hau ......Hauv cov cuab yeej sib xyaw ua ke, ceramics feem ntau ua lub luag haujlwm ntawm "kev puas tsuaj ntawm lub taub hau".Muaj ntau ntau hom ceramics hauv lub cev armor, feem ntau siv yog alumina ceramics (AI²O³), silicon carbide ceramics (SiC), boron carbide ceramics (B4C).
Lawv cov yam ntxwv zoo sib xws yog:
Alumina ceramics muaj qhov ceev tshaj plaws, tab sis qhov hardness kuj tsawg, qhov pib ua haujlwm qis dua, tus nqi pheej yig dua.Kev lag luam muaj qhov sib txawv purity yog muab faib ua -85/90/95/99 alumina ceramics, nws daim ntawv lo yog siab dua purity, hardness thiab nqi siab dua.
Silicon carbide ceev yog nruab nrab, tib lub hardness kuj yog nruab nrab, belongs rau cov qauv ntawm cov nqi-zoo ceramics, yog li feem ntau lub cev armor inserts yuav siv silicon carbide ceramics.
Boron carbide ceramics nyob rau hauv cov hom ntawm ceramics nyob rau hauv qhov tsawg tshaj plaws ceev, lub siab tshaj plaws lub zog, thiab nws cov txheej txheem technology kuj tseem yuav tsum tau siab heev, kub thiab siab sintering, yog li nws cov nqi kuj yog kim tshaj ceramics.
Noj NIJ qib ⅲ phaj ua piv txwv, txawm hais tias qhov hnyav ntawm alumina ceramic insert phaj yog 200g ~ 300g ntau tshaj silicon carbide ceramic insert phaj, thiab 400g ~ 500g ntau tshaj boron carbide ceramic insert phaj.Tab sis tus nqi yog 1/2 ntawm silicon carbide ceramic insert phaj thiab 1/6 ntawm boron carbide ceramic insert phaj, yog li cov alumina ceramic insert phaj muaj tus nqi siab tshaj plaws thiab belongs rau cov khoom lag luam ua lag luam.
Piv nrog cov hlau tsis muaj phom phom phaj, cov khoom sib xyaw / ceramic phom phom phaj muaj qhov zoo dua tsis tuaj yeem!
Ua ntej ntawm tag nrho cov, cov hlau armor hits homogeneous hlau armor los ntawm lub projectile.Nyob ze ntawm qhov txwv nkag mus tshaj tawm, hom tsis ua haujlwm ntawm lub hom phiaj phaj feem ntau yog compression craters thiab shear slugs, thiab kinetic zog noj feem ntau yog nyob ntawm kev ua haujlwm shear los ntawm cov yas deformation thiab slugs.
Lub zog noj efficiency ntawm ceramic composite armor yog pom tseeb siab dua li homogeneous hlau armor.
Cov tshuaj tiv thaiv ntawm ceramic phiaj yog muab faib ua tsib txheej txheem
1: lub ru tsev mos txwv yog tawg mus rau hauv me me pieces, thiab crushing ntawm lub warhead ua rau kom lub hom phiaj ua hauj lwm cheeb tsam, thiaj li mus disperse lub load ntawm lub ceramic phaj.
2: Cov kab nrib pleb tshwm nyob rau saum npoo ntawm cov ceramics hauv thaj tsam cuam tshuam, thiab nthuav tawm sab nraud ntawm thaj tsam cuam tshuam.
3: Lub zog teb nrog rau qhov cuam tshuam cheeb tsam compression yoj pem hauv ntej mus rau sab hauv ntawm cov ceramic, kom cov ceramic tawg, cov hmoov generated los ntawm qhov cuam tshuam cheeb tsam nyob ib ncig ntawm lub projectile ya tawm.
4: Cov kab nrib pleb nyob rau sab nraum qab ntawm cov ceramic, ntxiv rau qee cov kab nrib pleb, cov kab nrib pleb faib rau hauv lub khob hliav qab, kev puas tsuaj yuav tshwm sim hauv lub khob hliav qab.
5: ceramic nyob rau hauv lub khob hliav qab yog tawg mus rau hauv tej qhov chaw nyob rau hauv complex kev nyuaj siab tej yam kev mob, thaum lub projectile cuam tshuam tej hub nto, feem ntau ntawm cov kinetic zog yog noj nyob rau hauv kev puas tsuaj ntawm lub khob hliav qab cheeb tsam, nws txoj kab uas hla nyob rau hauv lub mechanical zog thiab geometric qhov ntev. ntawm qhov projectile thiab ceramic khoom.
Cov saum toj no tsuas yog cov lus teb cov yam ntxwv ntawm cov cuab yeej ceramic ntawm qis / nruab nrab ceev projectiles.Namely, cov yam ntxwv teb ntawm qhov projectile tshaj tawm ≤V50.Thaum lub projectile tshaj tawm yog siab tshaj V50, lub projectile thiab ceramic erode ib leeg, tsim ib tug mescall crush cheeb tsam uas ob leeg armor thiab projectile lub cev tshwm li kua.
Qhov cuam tshuam tau txais los ntawm lub nraub qaum yog qhov nyuaj heev, thiab cov txheej txheem yog peb sab hauv qhov xwm txheej, nrog kev sib cuam tshuam ntawm ib txheej thiab hla cov txheej txheem fiber ntau uas nyob ib sab.
Hauv cov ntsiab lus yooj yim, kev ntxhov siab nthwv dej los ntawm cov ntaub yoj mus rau cov resin matrix thiab tom qab ntawd mus rau txheej uas nyob ib sab, lub zog nthwv dej cov tshuaj tiv thaiv rau kev sib tshuam fiber ntau, uas ua rau muaj kev cuam tshuam ntawm kev cuam tshuam lub zog, yoj propagation nyob rau hauv cov resin matrix, kev sib cais ntawm cov fibers. ntaub txheej thiab kev tsiv teb tsaws ntawm cov ntaub txheej ua rau kom muaj peev xwm ntawm cov khoom sib xyaw kom nqus tau lub zog kinetic.Kev tsiv teb tsaws chaw tshwm sim los ntawm kev tawg mus ncig thiab kev nthuav tawm thiab kev sib cais ntawm tus kheej cov khaubncaws sab nraud povtseg tuaj yeem nqus tau ntau qhov cuam tshuam lub zog.
Rau kev nkag mus rau hauv kev simulation simulation ntawm cov khoom sib xyaw ceramic armor, kev simulation simulation feem ntau yog siv hauv chav kuaj, uas yog, rab phom roj siv los ua qhov kev sim nkag mus.
Vim li cas Linry Armor muaj tus nqi kom zoo dua li cov chaw tsim khoom ntawm cov khoom siv phom sij hauv xyoo tas los no?Muaj ob yam tseem ceeb:
(1) Vim yog kev xav tau ntawm engineering, muaj qhov xav tau zoo rau cov qauv ceramics, yog li tus nqi ntawm cov khoom siv ceramics tsawg heev [tus nqi sib koom].
(2) Raws li cov chaw tsim khoom raw cov ntaub ntawv thiab cov khoom tiav tau ua tiav hauv peb lub hoobkas, kom peb tuaj yeem muab cov khoom zoo tshaj plaws thiab tus nqi zoo tshaj plaws rau cov khw muag khoom thiab cov neeg.
Post lub sij hawm: Nov-18-2021