Cov tsho tiv thaiv mos txwv feem ntau yog ua los ntawm cov qib siab -kev ua tau zoo fibers, ceramics, hlau, thiab cov khoom ntse. Cov ntaub ntawv no tau sib xyaw ua ke hauv ntau txoj hauv kev kom nqus tau zoo thiab tawg lub zog kinetic ntawm cov mos txwv.
Raws li cov qauv thiab daim ntawv thov, cov ntaub ntawv siv hauv cov tsho tiv thaiv phom sij tuaj yeem raug cais raws li hauv qab no:
High -cov ntaub ntawv fiber ntau: Cov no yog cov tseem ceeb ntawm cov mos mos mos mos tsho khuam. Cov piv txwv uas muaj xws li:
Kevlar: Tsim los ntawm DuPont, nws yog ntau tshaj 5 npaug zog dua hlau, tsis tau tsuas yog 1/5 qhov ceev. Nws muaj lub zog tensile zoo heev thiab yog siv dav hauv cov tsho tiv thaiv mos txwv thiab kaus mom hlau.
Ultra- siab molecular hnyav polyethylene (UHMWPE): Xws li Dyneema® thiab domestically tsim "Lilun," nws muaj ib tug tshwj xeeb lub zog mus txog rau 15 npaug ntawm cov hlau thiab yog 20% -30% sib dua aramid rau tib theem ntawm kev tiv thaiv. Nws tau dhau los ua cov khoom siv mos mos mos mos mos thoob ntiaj teb. Txawm li cas los xij, nws qhov kub-kub kuj tsis zoo; nws qhov kev ua tau zoo qis dua 70 degree.
Unwoven npuag (UD npuag): Ua los ntawm unidirectionally aligning fibers thiab kho nrog resin, nws boasts siab zog diffusion efficiency thiab yog ib tug ntawm cov muaj zog thiab lightest mos mos ntaub ntaub tam sim no muaj.
Cov ntaub ntawv nruj: Siv los txhim kho qib kev tiv thaiv thiab tiv taus cov mos txwv phom:
Cov ntaub ntawv ceramic: xws li alumina, silicon carbide, thiab boron carbide, cov no muaj zog heev. Thaum cov mos txwv cuam tshuam, lawv tawg thiab dissipate feem ntau ntawm cov mos txwv lub zog kinetic, feem ntau yog siv los ua qhov chaw txais cov mos txwv.
Cov khoom siv hlau: suav nrog cov hlau tshwj xeeb, aluminium alloys, thiab titanium alloys, cov no nqus lub zog los ntawm kev deformation thiab tawg, tab sis hnyav thiab feem ntau yog siv rau hauv cov tsho tiv thaiv thaum ntxov lossis cov neeg caij nyoob hoom qav taub.
Composite thiab ntse cov ntaub ntawv:
Tsis yog-Newtonian kua (shear-thickening fluids, STF): Feem ntau cov mos mos, lawv harden tam sim ntawd thaum muaj kev kub ceev -kev cuam tshuam, ua kom muaj kev cuam tshuam ntawm fiber ntau txheej. Lawv feem ntau siv ua ke nrog Kevlar los tsim ib lub cim tshiab ntawm "kua mos txwv vests."
Cov pa roj carbon fiber ntau: Siv rau hauv cov khaubncaws sab nraud povtseg, nws muab lub zog siab thiab lub teeb yuag, ntxiv absorbing residual zog thiab txo qhov kev pheej hmoo ntawm blunt quab yuam raug mob.
Niaj hnub nimno tseem ceeb cov tsho tiv thaiv mos txwv feem ntau txais yuav ib qho "mos- nyuaj sib xyaw" tsim. Piv txwv li, txheej txheej yog ib txheej mos ntawm Kevlar los yog UHMWPE kom nqus tau thawj lub zog kinetic, nruab nrab txheej yog cov khoom siv ceramic los rhuav tshem cov mos txwv, thiab cov txheej sab hauv yog cushioned nrog carbon fiber lossis STF cov khoom, ua tiav qhov sib npaug ntawm qhov hnyav thiab kev tiv thaiv siab.
