Yuav ua li cas tiv thaiv Deformation ntawm koj lub thawv ntim khoom zoo li

Cov dej noo ntawm lub thawv ntoo yog nyob rau hauv lub fiber ntau saturation point ntawm ntoo. Txoj kev khoov ntawm cov ntoo nce nrog qhov nce ntawm cov dej noo ntawm cov ntoo. Thaum qhov ntom ntawm cov ntoo me me, cov ntsiab lus noo noo tuaj yeem tsim nyog ntxiv. Qhov no yog vim qhov tsawg ntom ntawm cov ntoo thiab cov ya raws yooj yim txiav tawm.

Cov ntaub ntawv kub Kev khoov ntawm cov ntoo nce nrog qhov nce ntawm cov ntoo kub, tab sis thaum qhov kub ntawm cov ntoo siab dhau lawm, cov yas ntawm cov ntoo nce thiab cov hemicellulose hauv cov ntoo degrades, txo lub zog ntawm cov ntoo.

Tom qab khoov ceev yog softened, cov khoom ncaj square yuav tsum tau khoov tam sim ntawd. Yog tias qhov kev sib tw ceev dhau qeeb, qhov kub ntawm cov ntoo yuav poob thiab cov yas yuav tsis muaj zog, uas yuav cuam tshuam rau kev ua haujlwm ntawm cov ntoo. Yog hais tias lub bending ceev ntawm cov ntoo yog ceev heev, lub internal qauv ntawm cov ntoo yuav lig dhau lawm Qhov yuav tsum tau hloov mus rau deformation ua rau kev puas tsuaj.

Kev sib raug zoo ntawm cov nplhaib txhua xyoo thiab cov npoo nkhaus Thaum lub nplhaib txhua xyoo ntawm cov ntoo yog sib npaug rau ntawm qhov nkhaus, cov ntoo yuav tsis raug puas tsuaj nyob rau hauv siab dua; tab sis thaum lub nplhaib txhua xyoo yog perpendicular mus rau qhov chaw nkhaus, nyob rau hauv kev khoov siab, lub nplhaib txhua xyoo txheej yuav tsis puas. Lub log txheej yog yooj yim rau slippage thiab txo qhov kev ua tau zoo ntawm cov ntoo.

Thaum lub thickness thiab dav ntawm linear square ntoo kuj loj, ntoo yog ib qho yooj yim kom poob stability thaum nws yog khoov. Yog li ntawd, hauv kev tsim khoom tiag tiag, qhov dav ntawm cov ntoo square tuaj yeem siv los ua ntau yam ntaub plaub. Thaum cov linear square ntoo wool Tom qab khoov, splitting yog ua.