《材料力学》课程PPT教学课件（双语版）第九章 组合变形

Mechanics of materials CHAPTERO COMPOSIEDEFORMATONS

Mechanics of Materials 1

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CHAPTER 9 COMPOSITE DEFORMATIONS §9-1 SUMMARY §92 SKEW BENDING D$9-3 COMBINATION OF BENDING AND TORSION □§9-4 BENDING AND TENSION OR COMPRESSION ECCENTRIC TENSION OR COMPRESSION KERNEL OF THE SECTION

CHAPTER 9 COMPOSITE DEFORMATIONS §9–1 SUMMARY §9–2 SKEW BENDING §9–3 COMBINATION OF BENDING AND TORSION §9-4 BENDING AND TENSION OR COMPRESSION  ECCENTRIC TENSION OR COMPRESSION  KERNEL OF THE SECTION 3

第九章组合变形 §9-1概述 §9-2斜弯曲 §9-3弯曲与扭转的组合 §9-4拉(压)弯组合·偏心拉(压)·截面核心

第九章 组合变形 §9–1 概述 §9–2 斜弯曲 §9–3 弯曲与扭转的组合 §9-4 拉(压)弯组合  偏心拉（压） 截面核心 4

COMBINED DEFORMATIONS §9-1 SUMMARY 1 Composite deformation: Structural members will produce several types of simple deformations when subjected to complex external loads. The stress corresponding to each simple deformation can not be neglected when the magnitude of each stress has the same order. This kind of deformation is called the composite deformation P O R M

§9–1 SUMMARY M P R z x y P P 1、Composite deformation：Structural members will produce several types of simple deformations when subjected to complex external loads .The stress corresponding to each simple deformation can not be neglected when the magnitude of each stress has the same order .This kind of deformation is called the composite deformation . 5

组合变影 §9-1概述 一、组合变形:在复杂外载作用下,构件的变形会包含几种简 单变形,当几种变形所对应的应力属同一量级时,不能忽略 之,这类构件的变形称为组合变形 P O R M

一、组合变形 ：在复杂外载作用下，构件的变形会包含几种简 单变形，当几种变形所对应的应力属同一量级时，不能忽略 之，这类构件的变形称为组合变形。 §9–1 概 述 M P R z x y P P 6

COMBINED DEFORMATIONS 南昆铁路重点工程之一板其2号大桥依地形、质山势,是中国第一座弯梁桥 P hy

P hg 7

组合变影 南昆铁路重点工程之一板其2号大桥依地形、质山势,是中国第一座弯梁桥 P hy

P hg 8

COMBINED DEFORMATIONS P hy At 业金 Dam 9

Dam q P hg 9

组合变影 P hy At 业金 水坝 10

水坝 q P hg 10