5.3 PLANE BENDING STRESSES Ntxiv rau qhov kev ntxhov siab vim torsion, ntu yuav raug khoov kev ntxhov siab (Tb thiab shear stresses Tb vim lub dav hlau khoov twb muaj nyob rau hauv lub tus tswv cuab.
Puas torsion ua rau khoov lub sijhawm?
Hais lus yooj yim, bending lub sijhawm ua rau khoov ntawm ntu thiab lub zog(Torsional moment) ua rau kev sib tw ntawm ntu.
Dab tsi yog qhov txawv ntawm dabtsi yog khoov thiab torsion?
Bending: Kev ntxhov siab uas tsim los ntawm kev khoov lub sijhawm (S. F xoom) hu ua khoov. Torsion: - Hauv kev ua haujlwm ntawm cov khoom siv kho tshuab, torsion yog qhov sib tw ntawm ib qho khoom vim yog siv torque.
Dab tsi yog torsion dabtsi yog khoov?
Torsion yog qhov twisting ntawm lub nqaj nyob rau hauv qhov kev txiav txim ntawm lub zog torque (twisting moment). … Lub zog torque, T, muaj tib lub zog (N m) raws li lub sijhawm khoov, M. Ob leeg yog cov khoom ntawm lub zog thiab qhov deb.
Dab tsi ua rau kab teeb khoov?
Cov qauv siv feem ntau uas yuav raug khoov lub sijhawm yog cov nqaj, uas yuav khoov thaum thauj khoom ntawm txhua qhov chaw raws nws qhov ntev. Kev ua tsis tiav tuaj yeem tshwm sim vim yog khoov thaum lub tensile stress exerted by a force yog sib npaug los yog ntau tshaj qhov kawg lub zog (los yog yield stress) ntawm lub caij.
