Hauv txheej txheem kev kos duab, qhov kev nyuab siab ntawm kev kos duab tau siv rau thaj chaw kos duab ntawm chav tsev hla ntu ntawm cov xaim kos ntawm lub qhov ncauj teeb duab yog rub rau rub 1. Txhawm rau cov hlau txhawm rau hloov pauv yas yas hauv qhov pwm , lub zog tensile ntawm lim 1 yuav tsum muaj ntau dua li qhov ua kom tsis muaj zog ntawm cov hlau hauv qhov chaw deformation ntawm cov pwm qhov. Txhawm rau tiv thaiv cov txheej txheem teeb duab uas deformation ntawm cov hlau tom qab nws tau rub tawm ntawm lub qhov tuag txuas mus txuas ntxiv los yog tawg, thiab yog li ua rau cov txheej txheem teeb tsa tsis ruaj khov, teeb duab kev nyuaj siab tus nqi ntawm 1 yuav tsum tsawg dua li qhov txwv tawm los ntawm cov hlau xaim tom qab lub qhov tuag raug kos. Yog li, qhov xwm txheej rau kev ua tiav cov txheej txheem kev kos duab feem ntau tau hais raws li hauv qab no: v T< vv="">< vv="" s="" os.="" qhov="" piv="" k="" yog="" hu="" ua="" kev="" nyab="" xeeb="" ntawm="" cov="" txheej="" txheem="" kos="">
Tom qab ntsib qhov txias txias xaim hlau, nws ua rau pom kev deformation thiab tawv. Nws cov txiaj ntsig txwv, s tus nqi, ze rau nws lub zog txwv, v, uas feem ntau siv hauv kev tsim khoom los hloov v, yog li cov xwm txheej ntawm cov txheej txheem teeb duab kuj tseem tuaj yeem hais ua unv T< v="">< v="" tus="" s.="" qhov="" kev="" nyab="" xeeb="" zoo="" k="" ntawm="" cov="" txheej="" txheem="" teeb="" duab="" kuj="" tseem="" tuaj="" yeem="" hais="" qhia="" los="" ntawm="" qhov="" sib="" piv="" ntawm="" net="" b="" rau="" net="">
K tus nqi ntawm kev nyab xeeb hauv txheej txheem kos duab feem ntau yog nruab nrab ntawm 1.40 thiab 2.0. K< 1.40="" txhais="" tau="" hais="" tias="" qhov="" kev="" nyuab="" siab="" ntawm="" kev="" kos="" duab="" siab="" dhau="" lawm.="" cov="" hlau="" xaim="" tuaj="" yeem="" txuas="" ntxiv="" mus="" tom="" qab="" lub="" qhov="" tuag,="" thiab="" cov="" txheej="" txheem="" kos="" duab="" tsis="" ruaj="" khov.=""> 2.0 qhia tias kev nruj nruj 1 yog qhov me me, kev hloov pauv me me dhau hauv daim duab thib ob, thiab daim duab thib ob tau nce. Nyob rau hauv cov ntaub ntawv ntawm ultra-nplua hlau xaim uas nws txoj kab uas hla yog tsawg dua 0.05mm, nws yog qhov nyuaj rau hnav cov tuag. Txhawm rau txhawm rau txhim kho kev ruaj ntseg ntawm cov txheej txheem kos duab, txo Lub Sijhawm rub thiab rhuav tshem, thiab txhim kho kev teeb duab kev tsim khoom, kev nyab xeeb zoo K tus nqi tuaj yeem siv tau ntau dua 2.0.