Section Modulus calculation and optimization

Section Modulus Calculation and Optimization

OBJECTIVE:

To use the section of the Hood Design & calc the section modulus and also to come up with a new section of improved section modulus of the previous section.

SECTION MODULUS:

is a geometric property for a given cross-section used in the design of beams or flexural members.In simple words it is the study which infers how much bending a body can resist.The higher our section modulus value the more it will resist bending.

S = I/y

S = Section Modulus

I = Moment of Inertia

y = distance between the neutral axis and the extreme end of the object.

CASE 1:

Here we calculate the section modulus for the currently designed hood,

Here I= 5.69×10³ mm4.

The distance between both extreme ends of the object.

To obtain Y we divide the total length by 2.

So we get,

Y=485.7/2=242.85 mm

Section Modulus,S=I/Y

5.69×10³/242.85

S=23.43 mm³

CASE 2:

To improvise the moment of inertia,the bottom section is offsetted by 0.5 mm.

Here I=5.91×10³ mm4

Y=242.85 mm

Section Modulus,S=I/Y

5.91×10³/242.85

S=24.34 mm³

CONCLUSION:

We can clearly notice that when the section of an object increases the section modulus increases relatively.This shows that when a section of an object increases it's ability to resist bending increases.