Section Modulus calculation and optimization

Ans -

1. M / I = σ /y = E / R
2. The bending equation is M / I = σ /y = E / R. Pure bending is taken into consideration when the bending moment is constant and the rate of bending moment change is equal.

3. where I = Moment of Inertia,

   E = Modulus of Elasticity,

   σ = Stress at any fiber at a distance of y from the neutral axis,

   M = Bending moment and

   R = Radius of curvature.

4. 
5. Section modulus is I/Y 1.32939X10*4/440=30.2134
6. After optimized
7. 1.4888x10*4 /440= 33.83
8. Section modulus is increased strength will be increase.