Question: A 6 0 m m 1 2 m m rectangular cross section beam carries a bending load P that varie from 6 0 0 N

A 60mm12mm rectangular cross section beam carries a bending load P that varie from 600 N to 900 N as shown in below figure. In the figure a=800mm and b=400mm. Use a design factor of 4, and assume that the actual endurance strength is 50% of the ultimate strength. Stress concentration factor can be taken as 1.
22 marks
=112(mm)1-60(mm)-1
Find
a. Maximum bending moment
b. Minimum bending moment
c. Maximum bending stress
d. Minimum bending stress
e. Mean Stress
f. Alternating stress
g. Ultimate strength of material
A 6 0 m m 1 2 m m rectangular cross section beam

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