Pob zeb ua kev yog ib qho khoom siv nyuaj thiab kav ntev, txawm li cas los xij, nws tseem muaj kev cuam tshuam rau deformation vim muaj qhov hnyav sab nraud. Yog li no, thaum txhim kho cov vaj tse pob zeb, nws yog qhov tsim nyog yuav tsum tau coj mus rau hauv tus yam dab tsi ntawm kev quab yuam lawv tuaj yeem tiv thaiv. Lub peev xwm deform ntawm ib ntus xwm, uas yog, elastic, yog qhia los ntawm xws li qhov ntsuas xws li qauv qauv ntawm elasticity ntawm pob zeb.
Yuav ua li cas pob zeb deforms
Txhawm rau txiav txim siab txog kev ywj pheej ntawm cov pob zeb ua, kev sim ua kom muaj zog thiab cov kev sib tw tensile feem ntau yog ua. Txawm li cas los xij, hauv kev tsim kho, qhov tseeb tshaj plaws yog pob zeb ua uas tsis muaj qhov cuab lub zog tsis muaj peev xwm ua kom tsis muaj zog. Ib qho ntawm cov cuab yeej ntawm cov qhob tau nkag, nws yog vim nws tias deformation nce hauv zog. Thawj theem ntawm kev ua haujlwm yog deformation ywj siab. Qhov no txhais tau tias tom qab lub siab ploj, cov khoom thauj khoom yuav rov qab mus rau nws qhov qub. Yog tias koj nce qhov kev quab yuam, qhov deformation yuav hloov tsis tau. Ib qho ntxiv nce ntxiv ntawm lub nrawm coj mus rau qhov khoom rhuav tshem. Nws yog qhov nyuaj los txiav txim siab rau lub sij hawm twg lub cev hloov kho tsis yooj yim, vim tias qhov hloov ntawm cov qauv pob zeb nyob ntawm tus nqi ntawm nce hauv lub nra. Tus nqi no yog thawj qhov qauv ntawm kev ua tiav ntawm cov pob zeb.
Yuav ua li cas cov qauv ntawm elasticity tau suav
Nws yog qhov nyuaj rau xam thawj qhov qauv ntawm elasticity, tab sis koj tuaj yeem tsim nws qhov kwv yees tus nqi. Hauv chav kawm ntawm kev sim ib cov qauv pob zeb ua kom muaj lub zog, daim duab ntawm qhov tsis txaus siab ntawm deformation ntawm qhov kev cuam tshuam lub zog yog kos. Feem ntau, nyob rau hauv cov kab li, qhov kev ruaj ntseg ntawm qhov txawv thiab qhov ntxhov siab teeb duab yog thaum uas tig mus rau lub tangent los ntawm keeb kwm. Indirectly, siv daim duab no, koj tuaj yeem txiav txim siab qhov qauv ntawm elasticity ntawm qhob.
Feem ntau, cov qauv modulus ntawm elasticity yog ncaj qha sib npaug rau lub hauv paus ntawm nws lub zog. Muaj tseeb, cov lus qhia no yog qhov tseeb tsis yog rau txhua daim duab, tab sis tsuas yog rau nws qhov tseem ceeb. Ntau kuj yog nyob ntawm cov mob uas qhov kev ntsuas tau coj tawm thiab ib puag ncig. Piv txwv li, dej ntxau-pob zeb ua kom yooj yim dua cov pob zeb qhuav, txawm hais tias lawv lub zog yuav luag zoo li qub. Qhov zoo tshaj ntawm cov ntxhib lim tau muaj qhov zoo nyob rau ntawm qhov elasticity index. Cov kev sib raug zoo yog qhov ncaj - cov qauv hnyav ntawm cov pob zeb ua ke muaj qhov qis dua ntawm elasticity dua qhov hnyav.
Qhov ntsuas no tseem nyob ntawm lub hnub nyoog ntawm cov khoom. Cov laus dua cov pob zeb ua ke, ntau dua nws cov qauv ntawm elasticity.
Hauv kev siv tswv yim, tus qauv ntawm kev ua kom yooj yim ntawm cov pob zeb ua ke yog qhov tseem ceeb hauv kev tsim kho. Thaum tso tawm, txhua cov ntaub ntawv sau npe, yog li qhov pib kwv yees pib tuaj yeem txiav txim siab raws li daim ntawv lo. Rau qhov no, lub rooj tshwj xeeb tau muab tso ua ke, raws li tus nqi ntau ntau ntawm cov qauv ntawm elasticity ntawm txhua qib ntawm cov qhob yog tau suav. Nws yog qhov tseem ceeb heev los xaiv cov khoom zoo kom cov qauv tsis vau thaum lub sijhawm kev tsim kho, tab sis tseem muaj zog rau ntau xyoo.
