What is the applicable range of bending normal stress formula?
A. Pure bending or transverse bending of slender beams
B. Cross section inertia product Iyz > 0
C. Plastic deformation stage
查看答案
The maximum normal stress of transverse bending will not occur in?
A. On the section with the maximum bending moment of the constant section beam.
B. On the neutral axis
C. Farthest from the neutral axis.
Which of the following cases must consider bending shear stress?
A. The span of the beam is large（l / h > 5）
B. A large load is applied near the support
C. When the bending moment is negative
The shear stress coefficient circle K is (?).
A. 2
B. 3/2
C. 1.2
D. 4/3
The shear stress coefficient thin wall tube K is (?).
A. 3/2
B. 2
C. 4/3
D. 1
微信支付 
支付宝支付