VARIATION OF DAMPING RATIO AND SHEAR MODULUS WITH PLASICITY INDEX AND CONFINING PRESSURE

INTRODUCTION
Behaviour of soil under cyclic loading is non-linear

Non-linear behaviour commonly characterised by:

Damping coefficient, D

Shear modulus, G


DEFINITION
Damping coefficient
Is defined as the measure of energy dissipation
Shear modulus
Is the ratio of shear stress to shear strain
Plasticity index
Is the difference between liquid limit and plastic
limit
Confining pressure
Is ....etc

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i want ppt on shaft and rigidity on behalf of our project so kindy reply early .. ....etc

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design review of shaft for strength and rigidity

Shaft is a common machine element which is used to transmit rotary motion or torque. It generally has circular cross-section and can be solid or hollow. Shafts are supported on the bearings and transmit torque with the help of gears, belts and pulleys etc. Shafts are generally subjected to bending moment, torsion and axial force or a combination of these three. So the shafts are designed depending upon the combination of loads it is subjected to. Spindle stub and axle are some important types of ....etc

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Physics Lab Viva Voce

(1) Torsional Pendulum :
(1) Define Rigidity of modulus ?
Ans : When tangential surface forces are applied on a body , the successive layers of the material are moved or sheared.This type of strain is called shearing strain. The ratio of tangential stress to shearing strain is called Rigidity of modulus
Rigidity of modulus= Tangential stress / shearing strain.
Tangential stress = Force/Area.
Shearing strain=
(2) Define Moment Of Inertia ?
Ans : It is the measure of the inertia of a body in rot ....etc

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A torsional pendulum, or torsional oscillator, consists of a disk-like mass suspended from a thin rod or wire. When the mass is twisted about the axis of the wire, the wire exerts a torque on the mass, tending to rotate it back to its original position.

1. Introduction
A torsional pendulum, or torsional oscillator, consists of a disk-like mass
suspended from a thin rod or wire. When the mass is twisted about the axis
of the wire, the wire exerts a torque on the mass, tending to rotate it back
to its original position. If twisted and rele ....etc

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