Cov txheej txheem:

Puas yog lim thiab elongation tib yam?
Puas yog lim thiab elongation tib yam?
Anonim

Xav txog lub hnab roj hmab: koj rub nws, thiab nws tau ntev - nws ncab. Deformation yog ib qho kev ntsuas ntawm ntau npaum li cas ib yam khoom yog stretched, thiab strain yog qhov piv ntawm qhov deformation thiab qhov qub ntevXav txog strain li feem pua elongation - ntau npaum li cas loj (lossis me dua) yog qhov khoom thaum thauj nws.

Puas yog kev nyuaj rau kev ua tsis tiav ib yam li kev elongation?

Qhov elongation yog xam raws li tus txheeb ze nce nyob rau hauv ntev. Elongation ntawm Break yog ntsuas hauv % (% ntawm elongation vs. thawj qhov loj me thaum tawg tshwm sim). Lub siab tshaj plaws elongation i.e. thaum so, emax kuj hu ua "kev nyuaj siab rau kev ua tsis tiav ".

Kev sib raug zoo ntawm kev lim dej thiab qhov feem pua elongation yog dab tsi?

raws li koj tau hais, feem pua elongation=hloov qhov ntev100 / thawj qhov ntev. strain=hloov ntev / thawj qhov ntev.

Yuav ua li cas thiaj nrhiav tau txoj kev elongation?

Nws tau txais los ntawm kev faib cov khoom thauj los ntawm thaj chaw qub ntawm ntu ntu ntawm cov qauvCov kab mob siv rau engineering kev ntxhov siab-txoj kab nkhaus yog qhov nruab nrab kab tawm, uas yog tau los ntawm kev faib lub elongation ntawm lub gage ntev ntawm tus qauv, d, los ntawm nws thawj ntev.

Txoj kev elongation yog dab tsi?

2 Elongation ntawm so (%) Elongation ntawm kev tawg, tseem hu ua pob txha strain, yog qhov piv ntawm qhov hloov ntev thiab qhov ntev pib tom qab tawg ntawm qhov kuaj kuaj Nws qhia txog qhov muaj peev xwm ntawm cov nroj tsuag fiber ntau los tiv thaiv kev hloov ntawm cov duab yam tsis muaj kev tawg.

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