Video: Dab tsi yog qhov txawv ntawm proportional limit thiab yield point?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Cov yield point yog cov taw tes Tom qab deformation yuav tshwm sim thiab ib feem yog tias unloaded yuav tsis rov qab mus rau nws cov duab qub. Feem ntau cov proportional txwv tshwm sim rau ntawm kev ntxhov siab strain daim duab me ntsis ua ntej lub yield point . Qee lub sij hawm lawv nyob ze heev uas tib neeg siv lawv sib hloov.
Kuj kom paub yog, yog proportional txwv thiab yield zog tib yam?
Sib npaug txwv . Mus txog qhov nyiaj no kev ntxhov siab , kev nyuaj siab yog proportional mus strain (Hook'slaw), ces tus kev ntxhov siab -strain graph yog ib txoj kab ncaj nraim, thiab cov gradient yuav sib npaug rau elastic modulus ntawm thematerial. Elastic txwv ( yield zog ) Tshaj qhov elastic txwv , mus tas li deformation yuav tshwm sim.
Ib yam li ntawd, qhov proportional txwv yog dab tsi? 17.5.1 Nws Kev txwv tsawg Cov proportional txwv yog qhov siab tshaj plaws uas cov khoom siv kho hniav txhawb nqa yam tsis muaj kev sib txawv, lossis qhov loj ntawm elastic kev ntxhov siab saum cov yas deformation tshwm sim. Yog li, cov proportional txwv txhais tau tias yog qhov kev nyuaj siab tshaj plaws uas qhov kev ntxhov siab-txoj kev nkhaus yog qhov ncaj.
Tsis tas li lo lus nug yog, qhov txawv ntawm elastic txwv thiab qhov taw tes tawm los yog dab tsi?
Hauv Wikipedia, Yield Point hais tias: A yield zog los yog yield point yog materialproperty txhais raws li tus kev ntxhov siab ntawm qhov uas cov khoom pib todeform plastically. Kuv paub tias hauv qab no Elastic txwv , cov khoom siv tsuas yog qhia elastic tus cwj pwm. Tom qab YieldPoint , cov ntaub ntawv yuav qhia pom plasticity.
Dab tsi yog yielding point thiab breaking point?
Point Y yog yield point ntawm graphand kev ntxhov siab txuam nrog qhov no taw tes yog lub npe hu ua kev nyuaj siab . Qhov kawg point kev nyuaj siab yog lub siab tshaj plaws uas cov khoom yuav tsum tau dais kev ntxhov siab ua ntej tawg . Nws tseem tuaj yeem txhais tau tias yog qhov kawg kev ntxhov siab sib raug rau lub ncov taw tes ntawm kev ntxhov siab lim graph.
Pom zoo:
Dab tsi yog qhov txawv ntawm qhov ua tau zoo thiab cov khoom lag luam teb thiab cov ntsiab lus ntawm kev lag luam uas txhua qhov ua haujlwm zoo tshaj?
Lub tuam txhab muaj peev xwm ua kom tau raws li cov neeg siv khoom xav tau raws sijhawm yog hu ua Kev Ua Haujlwm Zoo, thaum ua haujlwm tau zoo yog lub tuam txhab muaj peev xwm xa khoom raws li tus neeg siv khoom xav tau nrog tsawg kawg ntawm cov khoom siv raw, kev ua haujlwm thiab tus nqi
Dab tsi yog qhov txawv ntawm qhov point thiab nonpoint qhov chaw ntawm dej paug?
Piv txwv li, cov dej tso tawm los ntawm cov chaw tsim khoom lag luam ntawm qee yam lossis cov chaw kho dej khib nyiab. Cov chaw uas tsis yog cov ntsiab lus suav nrog kev khiav tawm ntawm thaj av ua liaj ua teb uas tuaj yeem ntxuav cov chiv lossis lwm yam tshuaj rau hauv pas dej lossis dej ntws - qhov no yuav tshwm sim ntau txhiab square kilometers
Dab tsi yog qhov txawv ntawm qhov cuam tshuam qhov (socket) thiab lub qhov (socket) pa?
Rau kuv qhov kev paub qhov sib txawv yog nqes mus rau cov khoom siv Qhov saum npoo-hardening ua rau muaj kev cuam tshuam cov qhov (socket) kom nqus tau qhov hloov pauv tam sim ntawd (aka 'kev cuam tshuam') zoo dua. Nrog rau kev cuam tshuam txaus txaus, lub qhov (socket) tsis tu ncua tuaj yeem tawm ntawm cov duab vim tias cov hlau siv muaj softer
Dab tsi yog qhov sib txawv ntawm daim ntawv cog lus thiab yield?
Daim coupon tus nqi: Ib qho kev piav qhia. Daim ntawv cog lus tus nqi daim coupon yog tus nqi paj nws them txhua xyoo, thaum nws cov txiaj ntsig yog tus nqi xa rov qab nws tsim. Ib daim ntawv cog lus tus nqi daim coupon yog qhia raws li feem pua ntawm nws tus nqi par. Tus nqi par tsuas yog lub ntsej muag tus nqi ntawm daim ntawv cog lus lossis tus nqi ntawm daim ntawv cog lus raws li tau hais los ntawm lub chaw muab khoom
Dab tsi yog qhov txawv ntawm qhov kev thov thiab qhov xav tau ntawm cov khoom hais tias mis nyuj?
Dab tsi yog qhov txawv ntawm qhov kev thov thiab qhov xav tau ntawm cov khoom, hais mis nyuj? Kev xav tau yog kev sib raug zoo ntawm ntau tus nqi thiab qhov xav tau ntawm cov nqi ntawd. Kev xav tau ntawm cov mis nyuj yog qhov kev sib raug zoo ntawm tus nqi sib txawv ntawm cov mis nyuj thiab qhov xav tau ntawm cov nqi ntawd