Section Modulus calculation and optimization

Report writing

1)Section Modulus

The section modulus (S) is geometry property of the cross section used for designing beams and flexural members.

2)Formula for section modulus

defined as the ratio of total moment resisted by the section to the stress in the extreme fibre which is equal to yield stress.

Therefore

S=I/y, Where

3)Calculations of section modulus

Caes 1

MOI (MIN) CASE 1 1.104x10^5mm^4

Y value=489.983mm

Case 2

MOI (min) 1.13x10^5mm^4

4) Conclusion-

a) The section modulus value of case 2 is higher than the case 1

b) As we offset the inner panel by 0.15mm, the moment of inertia & section modulus increase which means strength and load material also increase and the moment of inertia directly proportional to the strength of the material.