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ar202
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Homework Statement
A steel strip of breadth 50 mm and depth 3 mm needs to be bent around a drum of diameter 4 m. What bending moment is required and what will be the maximum stress produced? The modulus of elasticity of the steel is 210 GPa
Homework Equations
[tex]
\frac{M}{I} = \frac{\sigma _b}{y} = \frac{E}{R}
[/tex]
The Attempt at a Solution
I'm able to find the bending moment by finding the second moment of area...
1.05 x1011 x 1.125 x10-10 = 11.8 Nm
however I'm stuck on how to then go on and find the maximum stress