Shear thiab dabtsi yog khoov daim duab kos yog ntsuas cov cuab yeej siv nrog kev txheeb xyuas cov qauv los pab ua cov qauv tsim los ntawm kev txiav txim siab tus nqi ntawm lub zog shear thiab dabtsi yog khoov lub sijhawm ntawm qhov taw tes ntawm cov qauv tsimxws li beam.
Dab tsi yog qhov tseem ceeb shear force daim duab thiab khoov lub sijhawm daim duab?
Daim duab lub zog shear qhia tias lub zog shear tiv thaiv los ntawm kab teeb raws li qhov ntev ntawm lub nqaj. Daim duab khoov lub sijhawm qhia tias lub sijhawm khoov tau tawm tsam los ntawm ntu ntu ntu raws qhov ntev ntawm lub nqaj.
Vim li cas shearing force tseem ceeb?
Shear yam ntxwv kuj tseem ceeb thaum ua tus yam ntxwv ntawm kev ncaj ncees ntawm kev sib raug zoo ntawm ob qhov chaw. … Txawm hais tias cov kev taw qhia ntawm lub zog sib txawv ntawm tensile (axial) thiab shear stresses, muaj kev sib raug zoo ntawm ob.
Qhov tseem ceeb ntawm shear force thiab dabtsi yog khoov lub sijhawm?
Ib lub zog quab yuam (SF) yog txhais tau tias yog cov lej ntawm cov lej ntawm txhua lub zog ntsug, sab laug lossis sab xis ntawm ntu. Lub sijhawm dabtsi yog khoov (BM) txhais tau tias yog algebraic sums ntawm lub sijhawm ntawm tag nrho cov rog nyob rau sab laug lossis sab xis ntawm ib ntu.
daim duab shear cuam tshuam li cas rau daim duab tam sim no?
Cov shear load yog nqes hav ntawm lub sijhawm thiab taw tes lub sijhawm ua rau dhiahauv daim duab tam sim no. Lub cheeb tsam nyob rau hauv daim duab shear sib npaug rauhloov nyob rau hauv lub sij hawm hla ntu txiav txim siab (txog ib qho kev dhia vim lub sijhawm taw tes). Sau tus nqi ntawm lub sijhawm ntawm txhua lub ntsiab lus tseem ceeb ntawm daim duab tam sim no.
