Wemfihlo Young futhi wonke umqondo walo main ngokomzimba

I wemfihlo okunwebeka longitudinal of indaba ukwakhiwa, noma wemfihlo uYoung, ngokuthi eliningi ngokomzimba okuyinto ephawula impahla impahla, ukuhlinzeka ukumelana kwabo ukusonteka, ojamele isiqondiso longitudinal.

Umngcele we-ephawula nobulukhuni the tintfo mbamba.

igama module oluhambisana igama Thomas Young - physics esidumile British kanye nososayensi oye wacwaninga izinqubo zlib kanye ukunwetshwa izinto eziqinile. Lokhu kuboniswa ukubaluleka ngokomzimba yencwadi Latin wemfihlo E. Young ulinganiswa Pascals.

wemfihlo sepharamitha Young noma wemfihlo okunwebeka longitudinal isetshenziselwa izibalo ahlukahlukene ngesikhathi izinto test on degree ukusonteka, compressive eqine futhi flexural.

Mangisho ukuthi iningi esetshenziswa zokwakha sibalo engavamile wemfihlo Young ngokwanele ezinkulu, okuvamise komyalelo wokungabi 10 ⁹ Pa. Ngakho-ke, "Giga" (GPA) zisebenzisa okunamathiselwe amaningi ukuze kube lula ukucabanga kanye ukurekhoda.

Lokhu okulandelayo izinkomba wemfihlo Young kwabanye zokwakha, okuyinto evame ukusetshenziswa ukuze kuhambisane netinhloso esisebenzayo. Kuyinto ekuqineni izakhiwo zabo kuxhomeke UKUQINA wokwakha izakhiwo kanye nezinye izinto.

Ngokusho etafuleni, izinga esiphezulu module kungokwalabo steel, kanye ubuncane - isihlahla.

ukuzimisela sokuqhafaza wemfihlo Young kungenzeka usebenzisa ukucindezeleka umdwebo ekhethekile elibonisa ijika etholwe eyodwa futhi ukwaziswa okufanayo ngokuba ukuqina kuhlolo okuphindaphindiwe.

Kulokhu, incazelo ebonakalayo ye wemfihlo Kwentsha sika ukuthola ubuhlobo zezibalo yokucindezeleka evamile ukuba elihambisana uhlobo nemingcele at ingxenye ethile ye ishadi ethile predetermined ezilinganiselwe umkhawulo σ _mi.

Ku-zezibalo Inkulumo wemfihlo Young kanje: E = σ / ε = tgα

Kufanele ukuthi wemfihlo we-Young futhi Isici proportionality encazelweni zezibalo komthetho kaHooke, okuyinto kanje: σ = Eε

Ngakho-ke, i-kuxhumana ngqo namatheminali longitudinal kuyaqina wemfihlo izici kulinganiswa nge cross-izigaba zezinto abathintekayo esivivinyweni ukuqina, uzwakalise usebenzisa nemingcele ezifana EA futhi E1.
EA - ngezinga elithile ukuqina eqine, impahla compressive e cross-section yayo, lapho A - ukubaluleka induku endaweni cross-Sectional.

E1 - yisikali sokuthi rigidity flexural kwezingxenye kwesigaba yayo cross, lapho 1 - ukubaluleka kwengosi kuba Axial mzuzu inertia, okuyinto kuphakama Sectional ipytyvaemogo impahla.

Ngakho, wemfihlo we Young - kuyinto inkomba jikelele, okuyinto eyenza amaqembu amaningana elichaza izakhiwo isakhi impahla.