文档介绍:CHAPTER 9
COMPOSITE DEFORMATIONS
1
1
材料力学
第九章组合变形
2
2
CHAPTER POSITE DEFORMATIONS
§9–1 SUMMARY
§9–2 SKEW BENDING
§9–BINATION OF BENDING AND TORSION
§9-4 BENDING AND TENSION PRESSION ECCENTRIC TENSION PRESSION KERNEL OF THE SECTION
3
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
4
4
§9–1 SUMMARY
M
P
R
z
x
y
P
P
COMBINED DEFORMATIONS
posite deformation:Structural members will produce several types of simple deformations when subjected plex 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 posite deformation .
5
5
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
组合变形
M
P
R
z
x
y
P
P
6
6
P
hg
7
COMBINED DEFORMATIONS
7
组合变形
P
hg
8
8
Dam
q
P
hg
9
COMBINED DEFORMATIONS
9
组合变形
水坝
q
P
hg
10
10