Muaj ntau txoj hauv kev ua rau cov pa roj carbon fiber ntau. Piv nrog rau pultrusion, cov pa roj carbon fiber ntau ua los ntawm yob txoj kev muaj ib tug me me Poisson' s piv, thiab cov txheeb ze kev ua tau zoo yog ruaj khov. Txawm li cas los xij, ua ntej cov pa roj carbon fiber ntau yog dov, lub layup yuav tsum tau ua kom zoo, txwv tsis pub qhov kev ua tau zoo ntawm carbon fiber tube yuav raug cuam tshuam.
Dab tsi yog qhov tsim nyog layup ntawm carbon fiber prepreg?
Raws li peb cov kev paub dhau los, yog tias koj xav dov thiab ua cov pa roj carbon fiber ntau nrog kev ua haujlwm ruaj khov thiab muaj txiaj ntsig ntau dua, koj yuav tsum siv sijhawm ntau dua rau ntawm txheej prepreg. Tsim nyog tsim ntawm lub kaum sab xis thiab kom muaj nuj nqis ntawm prepreg txheej yog qhov tseem ceeb heev. Kab lus no tsom mus rau qhov nam ntawm lub kaum sab xis.
Feem ntau siv prepreg layup kaum sab xis yog 0 °, ± 45 ° thiab 90 °. Kev tsim tsis raug ntawm lub kaum sab xis layup thiab kom muaj nuj nqis yuav tsis tsuas yog ua rau kev ua haujlwm ntawm cov pa roj carbon fiber ntau tsis ruaj khov, tab sis kuj tuaj yeem ua rau cov khoom siv raw thiab cov nqi. Nce, yog li txo tus nqi-zoo ntawm carbon fiber yeeb nkab nws tus kheej.
Vim li cas lub kaum sab xis ntawm carbon fiber prepreg cuam tshuam nrog kev ua haujlwm?
Lub layup tsim ntawm lub prepreg them nyiaj rau qhov sib npaug, thiab qhov sib npaug ntawm lub kaum sab xis tuaj yeem txo qhov kev ntxhov siab ntawm cov khoom siv fiber ntau thaum lub sijhawm kho, thiab zam kom tsis txhob muaj qhov cuam tshuam ntawm cov khoom deformation. Txoj kev hla ntawm cov pa roj carbon fiber ntau lub raj dov txheej txheem yog sib npaug thiab sib npaug, thiab nws yog ib qho tsim nyog los tswj qhov sib npaug ntawm cov txheej txheem prepreg txheej thaum lub sij hawm txheej txheej txheej.
Txhawm rau kom txo qis qhov cuam tshuam ntawm interlayer shear, qhov sib txawv ntawm lub kaum sab xis ntawm ob txheej uas nyob ib sab yuav tsum raug txo kom tsawg; kom txo tau cov nyhuv coupling, txheej yuav tsum muab tso kom deb li deb tau ± 45 ° thaum lub sij hawm paving txheej txheem.
Tsis tas li ntawd, nyob rau hauv lub ply txoj kev hloov chaw, tag nrho cov symmetry thiab tshuav nyiaj li cas yuav tsum tau khaws cia, thiab tshem tawm cov txheej txheem yuav tsum alternated rau qhov chaw nyob ze los yog deb ntawm nruab nrab kab ntawm lub ply; tus naj npawb ntawm plies ntawm tib lub kaum sab xis thiab tus naj npawb ntawm plies nyob rau hauv tag nrho nce thiab txo ib txhij; Cov txheej sab nraud yuav tsum tsis tu ncua npog tag nrho saum npoo yam tsis muaj qhov yuam kev; sim kom tsis txhob tshem tawm cov txheej txheem los ntawm sab nraud, tsis txhob tshem tawm ob lossis ntau cov khaubncaws sab nraud povtseg ntawm tib lub ntsiab lus, thiab tshem tawm cov txheej txheem ntawm cov txheej txheem ua tiav ntau li ntau tau; Hauv kev siv tswv yim, yuav tsum muaj tsawg kawg yog ib qho txuas txuas ntxiv ntawm txhua ob qhov txhaum.
