Section modulus and value of bending moment, Mechanical Engineering

Assignment Help:

Q. What do you mean by section modulus (Z)? What is value of bending moment in the terms of section modulus?


Sol.: Section modulus is ratio of M.I. about neutral axis which is divided by the outer most point from the neutral axis.

Z = I/ymax  .

For the Circular Shaft (Z) = I/y = ( ? D4/64)/D/2   =(  D3/32)

For the Hollow Shaft (Z) = I/y = {?  (D4 - d4)/64}/D/2   =( ? /32)( D4  - d4)/D
For the Rectangular section (Z) = I/y = (bd3/12)/d/2 =bd2/6

Section modulus represents strength of the section of the beam.

As; M =  σ .I/y =   .Z

Stress at outer fiber will be highest. That is,

M =   max.(I/ymax) =   max.Z


Related Discussions:- Section modulus and value of bending moment

BEEE, What is alternating quantity?

What is alternating quantity?

Molding process, why compression molding process is impractable for thermop...

why compression molding process is impractable for thermoplastics?

Hot And Cold Working, What Are Difference Between Hot And Cold Working

What Are Difference Between Hot And Cold Working

The same magnitude as it did at the bottom, For the normal force in Figure ...

For the normal force in Figure to have the same magnitude at all points on the vertical track, the stunt driver must adjust the speed to be different at different points. Suppose,

Calculate the internal pressure, A pressure vessel is to be treated to ge...

A pressure vessel is to be treated to generate compressive residual stresses on it inner surface. This involves increasing the pressure until taking 75% of the wall thickness goe

Som, Strain energy stored in a body due to impact load

Strain energy stored in a body due to impact load

Boiler, boiler water hammering

boiler water hammering

Space mass and weight - mechanics, Space mass and weight: The geometri...

Space mass and weight: The geometric region occupied by bodies called as space. When body changes its position w. r.t. the other bodies, then body is known to be in motion.

Objectives of the motercycle, Objectives After studying this unit, you...

Objectives After studying this unit, you should be able to describe how a motorcycle works, identify the transmission system and its various part, explain abo

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd