For plane bending the characteristics of deformation are ( ).
A: The cross section remains plane when bent;
B: The axis after deformation is a plane curve;
C: All external loads act on the same plane;
D: The axis after deformation is in the same plane with the loading plane.
A: The cross section remains plane when bent;
B: The axis after deformation is a plane curve;
C: All external loads act on the same plane;
D: The axis after deformation is in the same plane with the loading plane.
D
举一反三
- In the following cases, ( ) belongs to pure bending. A: The external loads act on the longitudinal symmetric plane of the member; B: The members are only bent without torsion and tension deformation; C: The load on the member is only concentrated couples; D: There is no shear force on each cross section of the member, and the bending moment is a constant.
- “Board the plane” means _________ A: go out of the plane B: leave the plane C: enter the plane D: run away from the plane. E: C
- Let's go to Paris _____________. A: by plane B: by a plane C: a plane D: by the plane
- “Board the plane” means _________. A: go out of the plane B: leave the plane C: enter the plane D: run away
- Bending in a main plane is called（）
内容
- 0
People listen to music on the following three planes: (1)the _____________ plane, (2) the ___________plane, (3) the___________ _____________ plane.
- 1
The statement that the average strain of the section conforms to the plane section assumption means that the strain of a section in the cracked section conforms to the plane section assumption.
- 2
When the plane ?
- 3
If you took a plane to a place, you went there ________. A: on plane B: through plane C: by air D: in sky
- 4
He’ll probably fly on the same plane as I ____ yesterday.