Moment of resistance, Mechanical Engineering

Explain the Moment of resistance?

Sol.: The two equal and unlike parallel forces, the lines of action of which are not same, form couple. The resultant compressive force (PC) because of compressive stresses on one side of neutral layer (or neutral axis) is equal to the resultant tensile force (Pt) because of tensile stresses on the other side of it. So these 2 resultant forces form a couple, and moment of couple is equal and opposite of the bending moment at section where the couple acts. This moment is called as moment of resistance (M.R.).

1691_movement of resistence.png

So, the moment of resistance (M.R.) at any section of beam can be defined as moment of the couple, formed by longitudinal internal forces of opposite nature and of equal magnitude, set up at the section on either side of neutral axis because of bending.

In the magnitude moment of resistance of any section of beam is equal to bending moment at that section of it.

Posted Date: 10/20/2012 7:55:02 AM | Location : United States







Related Discussions:- Moment of resistance, Assignment Help, Ask Question on Moment of resistance, Get Answer, Expert's Help, Moment of resistance Discussions

Write discussion on Moment of resistance
Your posts are moderated
Related Questions

Illustrate the assumptions made in Euler's theory. Determine the expression for crippling load for a long column when one end of the column is fixed and other end is hinged.

Compute the angular velocity of the wheel: A wheel of 0.5 m radius rolls over a horizontal surface without slipping as illustrated in Figure (a). The velocity of its centre is

Free body diagrams of cylindrical rollers: The t wo cylindrical rollers A and B which are identical, each having weight W are supported by an inclined plane and vertic

CAPP for Casting and Welding In this , we have studied the CAPP systems for Casting and Welding processes. Compared to the traditional (manual) process planning methods, CAPP

Consider some publications of the Bureau of Standards. The following publications of the Bureau of Standards shall be read along with this section of footings. a. IS 456 in

(a) Derive an expression for the otto cycle to determine the Mean Effective Pressure and efficiency. (b)The two engines are to perform on diesel and otto cycle with the followin

Compute the angular velocity of bar: A bar AB as shown in slides so that its bottom point A has a velocity of 4 m/sec to the left along the horizontal plane. Compute the veloc

Lubrication System: This is an arrangement that consists of oil pump, oil sump, oil lines and lubricant. The lubricant is meant to lubricate the engine moving parts and it also cl

A rectangular channel of width 12ft has an upstream slope of 0.02ft/ft and a downstream slope of 0.0005 ft/ft. Both reaches have lengths of 500 ft. The upstream reach has a Manning