Yas deformation yog qhov txawv txav mus tas li uas tshwm sim thaum cov khoom raug rau tensile, compressive, dabtsi yog khoov, lossis torsion stresses uas tshaj nws lub zog tawm los thiab ua rau nws elongate, compress, buckle, khoov, los yog twist.
Dab tsi yog qhov ua rau deformation?
Definition of Deformation
Nws feem ntau tshwm sim vim kev ntxhov siab uas tuaj yeem hais tias lub zog siv rau thaj chaw tshwj xeeb. Tsis tas li ntawd, muaj ntau yam laj thawj rau cov txheej txheem no tshwm sim. Piv txwv li, kev hloov ntawm qhov kub thiab txias, hloov ntawm lub ntiaj teb lub phaj sediment build-up thiab ntau yuav ua rau nws yooj yim.
Vim li cas cov yas deformation tshwm sim hauv cov hlau?
Plastic deformation ntawm cov hlau tshwm sim feem ntau los ntawm shearing: lattice dav hlau hauv cov khoom swb dhau ib leeg, tso cai rau macroscopic cov duab hloov yam tsis muaj kev cuam tshuam rau kev txiav txim thiab kev npaj ntawm atoms nyob rau hauv lub structure.
Plastic deformation tshwm sim qhov twg?
Plastic deformation nyob rau hauv daim ntawv ntawm plam tshwm sim nrog rau cov dav hlau uas kaw ntom nti, qhov twg lub zog xav tau rau kev txav txav txav tsawg. Slip hauv ib lub pob zeb siv lead ua mus txog thaum cov kab dislocation mus txog qhov kawg ntawm cov siv lead ua, qhov uas nws ua rau pom cov kauj ruam - yog li hu ua swb band.
Dab tsi ua rau plasticity?
Plasticity hauv cov hlau feem ntau yog tshwm sim los ntawm dislocations Hauv cov ntaub ntawv nkig xws li pob zeb lossis pob zeb, plasticity yog tshwm sim feem ntau los ntawm slippage ntawm microcracks. Cov ntaub ntawv yas nrog hardening yuav tsum tau nce siab kom ua rau cov yas deformation ntxiv.
