第二章 拉伸压缩、剪切.ppt

Chapter2 Axial Tension pression Axial Tension pression 2 (Axial tension & Compression, Shear) (Axial tension & Compression, Shear) § § 2-1 2-1 轴向拉压的概念及实例轴向拉压的概念及实例(Concepts and examples of axial tension & (Concepts and examples of axial tension & compression) compression) 第二章轴向拉伸和压缩 Chapter2 Axial Tension pression 第二章第二章轴向拉伸和压缩轴向拉伸和压缩 Chapter2 Axial Tension pression Axial Tension pression § § 2-2 2-2 内力计算内力计算(Calculation of internal force) (Calculation of internal force) § § 2-3 2-3 应力及强度条件应力及强度条件(Stress and strength condition) (Stress and strength condition) 3 (Axial tension & Compression, Shear) (Axial tension & Compression, Shear) § § 2-4 2-4 材料在拉伸和压缩时的力学性能材料在拉伸和压缩时的力学性能(Material properties in axial tension and (Material properties in axial tension and compression) compression) § § 2-5 2-5 拉压杆的变形计算拉压杆的变形计算(Calculation of axial deformation) (Calculation of axial deformation) § § 2-6 2-6 拉压超静定问题拉压超静定问题(Statically indeterminate problem of (Statically indeterminate problem of axially loaded members) axially loaded members) § § 2-7 2-7 剪切变形剪切变形(Shear deformation) (Shear deformation) 4 (Axial tension & Compression, Shear) (Axial tension & Compression, Shear) § § 2-1 2-1 轴向拉压的概念及实例轴向拉压的概念及实例(Concepts and example problems of axial (Concepts and example problems of axial tension & compression) tension & compression) 一、工程实例一、工程实例(Engineering examples) (Engineering examples) 5 (Axial tension & Compression, Shear) (Axial tension & Compression, Shear) 6 (Axial tension & Compression, Shear) (Axial tension & Compression, Shear) 三、变形特点三、变形特点(Character of deformation) (Character of deformation) 沿轴向伸长或缩短沿轴向伸长或缩短二、受力特点二、受力特点(Character of external force) (Character of external force) 外力的合力作用线与杆的轴线重合外力的合力作用线与杆的轴线重合四、计算简图四、计算简图(Simple diagram for calculating) (Simple diagram for calculating) FFF F轴向压缩轴向压缩(pression) (pression) 轴向拉伸轴向拉伸(axial tension) (axial tension) 7 (Axial tension & Compression, Shear) (Axial tension & Compression, Shear