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Yuav ua li cas fiber orientation cuam tshuam rau lub raj thiab daim ntawv lub zog?

Views:57 Author: Linda Tshaj Tawm Sijhawm: 2023-05-31 keeb kwm:

       Qhov cuam tshuam ntawm Fiber Orientation ntawm Cov Khoom

       Txoj kev ntawm cov fibers yog taw qhia nyob rau hauv ib tug carbon fiber los yog fiberglass layup cuam tshuam cov khoom ntawm nws cov carbon fiber los yog fiberglass khoom, thiab cov khoom no yuav tsum tau txiav txim siab thaum lub sij hawm tsim thiab ntau lawm.

       Hauv qab no peb piav qhia yuav ua li cas txhua qhov kev taw qhia fiber ntau cuam tshuam rau kev ua haujlwm:

1 ° kev taw qhia

       Yog hais tias ib feem tsuas yog loaded nyob rau hauv ib qho kev taw qhia, nws yog qhov zoo tshaj kom muaj tag nrho cov fibers oriented nyob rau hauv tib txoj kev. Pultruded rods thiab raj yog cov piv txwv ntawm qhov chaw uas tsuas muaj 0 ° fibers. Txij li feem ntau qhov chaw tsis tau thauj khoom hauv ib qho kev taw qhia, cov ces kaum ntxiv yuav tsum tau ntxiv kom muaj zog tshaj plaws. Ntxiv 90 ° txheej pab lub raj zoo khaws nws cov duab kom nws tsis khoov ntxov.

2 ° kev taw qhia

            Raws li tau hais ua ntej, 90 ° plies feem ntau ntxiv rau cov raj kom lawv tiv taus ntau dua rau buckling thiab crushing. Cov txheej txheem siab ntawm 90 ° lossis "ntiv nplhaib" tuaj yeem pom hauv cov hlab ntsha siab. Txij li thaum lub zog sim nthuav lub raj hauv lub nkoj siab, 90 ° txheej yog qhov tiv taus tshaj plaws. Thaum 90 ° txheej yog siv ua ke nrog 0 ° txheej hauv lub rooj tsavxwm, nws yog hu ua bidirectional. Kev siv cov ntaub npuag yog ib txoj hauv kev yooj yim los tsim cov fiber ntau hauv ob qho tib si 0 ° thiab 90 ° kev taw qhia.

3. ± 45 ° kev taw qhia

           Cov khoom siv carbon fiber ntau 45 ° ply muaj kev siv sib txawv nyob ntawm daim ntawv thov. Nws yog qhov tsis tshua muaj tshwm sim rau +45 ° nyob ib sab ntawm -45 ° ply, qhov no yog ua kom lub laminate "sib npaug" thiab tsis sib tw nrog quab yuam thaum thauj khoom. Thaum lub 45 ° ply yog siv nyob rau hauv ib tug slab uas twb muaj ib tug sib npaug zos sib tov ntawm 0 ° thiab 90 ° plies, lub slab yuav quasi-isotropic. Bidirectional slabs muaj vaj huam sib luag nyob rau hauv ob qho tib si cov lus qhia, thaum quasi-isotropic slabs muaj quasi-sib npaug zog nyob rau hauv txhua txoj kev. Nyob rau hauv lub raj, lub 45 ° plies ua hauj lwm ntawm ntxiv torsional zog thiab nruj. Tias yog vim li cas thaum lub raj yog twisted, lub zog ntawm lub laminate yog plaub caug-tsib degrees. Qee lub laminates yuav siv lub kaum sab xis dua li 45 ° raws li kev cuam tshuam ntawm kev khoov, tsoo thiab torsion kev ua tau zoo.

Xaiv cov kev taw qhia fiber ntau raws li koj xav tau

            Yog hais tias koj xav tau ib lub raj uas yuav ua tau nyob rau hauv tag nrho cov mob, bi-directional layups yog zoo tagnrho; Yog tias koj xav tau lub raj nrog kev ua tau zoo torsion, xaiv cov khoom uas muaj ntau tshaj 45 ° txheej; Yog tias koj xav tau kom nce thickness sai, cov khoom siv braided Tej zaum yuav yog qhov kev xaiv zoo.


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