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1、材料力學簡介(英文)1.TheresearchobjectofMechanicsofMaterialsStructuremembersClassificationofstructuremembers:plateorshellclumpbodybarorrod2.ThetaskofMechanicsofMaterialsanditsrelationwithengineeringStrength,Rigidity,StabilityStrength:Capacitytoresistfailureofacomponentoranelement.Rigidity
2、:Capacitytoresistdeformationsofacomponentoranelement.Stability:Capacitytoremaintheoriginalstateinequilibriumofacomponentoranelement.ThetasksofmechanicsofmaterialsUndertherequestthatthestrength,rigidity,stabilityaresatisfied,offerthenecessarytheoreticalfoundationandcalculationmeth
3、odfordeterminingreasonableshapesanddimensions,choosingpropermaterialsforthecomponentsatthemosteconomicprice.3.Thepropertiesandthefundmentalassumptionsofthesoliddeformablebodies1.Continuity:Thematerialofasoliddeformablebodyiscontinuouslydistributedoveritsvolumesothattherearenotany
4、cracks,defectsorholesetc.2.Homogeneity:Thematerialofthesoliddeformablebodyishomogeneouslydistributedoveritsvolume.3.Isotropy:Themechanicalpropertiesarethesameinalldirectionsatapoint.4.Smalldeformations:Thedeformationsforasoliddeformablecausedbyexternalforcesareverysmallcomparedwi
5、ththedimensionsofthebody.Thuswhenwestudytheequilibriumandmotionofthesoliddeformablebody,thedeformationofthebodymaybeneglected.4.Basictypesofthedeformationofrods1.Axialtension2.Shear3.Torsion4.BendingThankYou!此課件下載可自行編輯修改，僅供參考！ 感謝您的支持，我們努力做得更好！謝謝
