Why is there no normal stress due to bending moment Mz at the Z-axis? The answer my professor gave was as element K is lying on the Z-axis, as such, normal stresses at the Z-axis is 0. I do not understand what he meant. Able to draw out and explain so that i am able to visualise?
Why is there no normal stress due to bending moment Mz at the Z-axis? The answer my professor gave was as element K is lying on the Z-axis, as such, normal stresses at the Z-axis is 0. I do not understand what he meant. Able to draw out and explain so that i am able to visualise?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Why is there no normal stress due to bending moment Mz at the Z-axis?
The answer my professor gave was as element K is lying on the Z-axis, as such, normal stresses at the Z-axis is 0.
I do not understand what he meant. Able to draw out and explain so that i am able to visualise?
Transcribed Image Text:M, = 750 Nm
• Normal stress
4c
37
No o from M.
T = 900 N-m
F M,(z=0.02)
F =15 kN
A
I,
= -11.9 +119.3
M,
V =18KN
= 1074 MPa
(a) o & t at K
A = ¤(0,02)² = 1.257×10 ³m²
= 107.4MPA
K
1, = 1,
7(0.02)*
g, = 0
= 125.7×10 °m
43
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