Section modulus, Mechanical Engineering

Section modulus:

Define the Section modulus. What do you mean by torsional section modulus or polar modulus? 

The moment of inertia of plane about the axis perpendicular to plane of area is called as polar moment of inertia of area with respect to point at which the axis intersects plane.

The polar moment of inertia of the solid body (J) = Ixx + Iyy  =   /32.D4

Section Modulus(Z)

Section modulus is ratio of MI about neutral axis divided by most distant point from neutral axis.

Z = I/ymax

The section modulus for the circular solid shaft (Z)    = ( ? /64.D4)/D/2 =   ?/32.D3

The section modulus for circular hollow shaft (Z) =[ ?/64.(Do - Di  )]/DO/2 =   ?/32.(D- Di )/DO

The section modulus for the rectangular section (Z)    = (bd3/12)/d/2 = bd2/6

 

Posted Date: 10/23/2012 2:23:10 AM | Location : United States







Related Discussions:- Section modulus, Assignment Help, Ask Question on Section modulus, Get Answer, Expert's Help, Section modulus Discussions

Write discussion on Section modulus
Your posts are moderated
Related Questions
Basic Concept: Like any fine machine a motorcycle can be split into various systems like lubrication system, transmission system, electrical system, etc. It is important that a

Define different types of properties: Sol: For defining any system certain parameters are needed. Properties are the observable characteristics of system, which can be emplo


what is the formula for measuring the safe speed to drive for a cyclist

Cell Covers: Each cell is covered from the top of the cell covers and the terminals projected from the cell covers. The terminals are arranged alternatively in a line.

The first successful numerical machine tool was developed at MIT in the year:

a) Answer the following equations by Gauss-Jordan method x 1 +2x 2 +x 3 =8 ; 2x 1 +3x 2 +4x 3 =20; 4x 1 +3x 2 +2x 3 = 16 b) Answer the following equations by Relaxation m

Force required to start the roller: A roller shown in the figure given below is of mass 150Kg. What force T is required to start the roller over block A ? Sol.: Let

High growth has been observed since 2001-02 in automobile production. Annual growth was 16.0 percent in April-December, 2004; the growth rate in 2003-04 was 15.1 percent (Table 1.

How does an Ignition system works ?