材料力学双语教学学习资料

《材料力学双语教学学习资料》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、材料力学双语教学学习资料1第一章绪论Chapter1Introduction§1-1材料力学的任务TheTasksofMechanicsofMaterials1•材料力学：MechanicsofMaterials2.构件：StructuralMembers3.变形：Deformation4*.强度：Strength5*.刚度：Rigidity6*.稳定性:Stability§1-2变形固体的基本假设FundamentalAssumptionsofSolidDeformationBodies1.连续性假设:Continuity2.均性假设:Homog

2、eneity3.各向同性假设:Isotropy§1.3外力及其分类ExternalForcesandClassification1.分布力:DistributedForce2.集中力：PointForce3.静载荷：StaticLoad4.动载衙：DynamicLoad§1.4内力、截面法和应力的概念ConceptsofInternalForces,MethodofSectionandStress1*.内力：InternalForce2*.截而法：MethodofSection3.截面法的三个步骤：截开，代替，平衡Threestepsofmetho

3、dofsection:cutoff,substitute，andequilibrium.4应力:Stress5.平均应力:Averagestress6.应力（全应力）:Wholestress（sumstress）7*.正应力：NormalStress8剪应力（切应力）:ShearingStress§1.5变形与应变DeformationandStrain1.线应变：Strain2.剪应变：ShearingStrain§1.6杆件变形的基本形式BasicTypesofDeformationsofRods1拉伸或压缩：TensionorCompr

4、ession2*.剪切:Shear3*.扭转：Torsion4*.弯曲：Bending第二章拉伸、压缩与剪切Chapter2Tension，CompressionandShear§2.1轴向拉伸与压缩的概念和实例TheConceptandExamplesofAxialTensionandCompression1.拉杆:TensileRod2.压杆：CompressiveRod3.受力特点:外力合力的作用线与杆轴线重合CharacteristicoftheExternalForces:Theactinglineoftheresultantofexte

5、rnalforcesiscoincidedwiththeaxisoftherod.4.变形特点：杆沿轴向伸长或缩短CharacteristicofDeformation:Rodwillelongateorcontractalongtheaxisoftherod.§2.2轴向拉伸或压缩时横截面上的内力和应力InternalForceandStressofAxialTensionorCompressionontheCrossSection1*.横截面:CrossSection2*.轴力：NormalForce3轴力图：DiagramofNormalF

6、orce§2.3直杆轴向拉伸或压缩时斜截面上的应力StressofAxialTensionorCompressionontheSkewSection1.斜截而:SkewSection2.=(7COS2a§2.4材料在拉伸时的力学性能MechanicalPropertiesofMaterialswithTensileLoad1.标淮试件:Specimen2.低碳钢(C<0.3%):LowCarbonSteel3.弹性阶段:ElasticRegion4.屈服阶段:YieldingStage5.强化阶段:HardeningStage6.颈缩阶段:Neck

7、ingStage7*.―比例极限：ProportionalLimit8*.oe----弹性极限:ElasticLimit9*.os——屈服极限：YieldingStress10*.oh——强度极限：UltimateStress11.延伸率：PercentElongation12.断面收缩率:PercentReductionofArea13.塑性材料：DuctileMaterials14.脆性材料:BrittleMaterials15.铸铁:Castiron§2.7失效、安全系数和强度计算Failure,SafetyfactorandStrength

8、calculation1*.许用应力:AllowableStress2.安全系数：SafetyFactor3*.强度条件：