3 weeks ago

## Knoop Hardness Test

Knoop hardness test method (Microhardness test method) is applicable to extremely thin metals, plated surfaces, very hard and brittle materials, carburized and nitrided ..

• 3 weeks ago

## Material Groups

There are 31 types of crystals. Bodies and things made up of these crystals can be grouped into classes, based on the independent material constants in the linear ..

2 months ago

## Free Body Diagram (FBD)

In many problems in engineering mechanics, it is essential to isolate the body under consideration from the other bodies in contact and draw all the forces acting ..

• 2 months ago

## System of Forces

When several forces of different magnitude and different direction act upon a certain body, they constitute a system of forces. If all the forces in a system lie in a single ..

6 months ago

## Different Types of Beams

Beams are generally horizontal structural members which transfer loads horizontally along their length to the supports where the loads are usually resolved into ..

• 6 months ago

## Principle of Superposition

According to the principle of superposition of forces, when a Hookean body (An elastic body or material for which Hooke’s law equation can be assumed is said ..

8 months ago

## Varignon’s Theorem

According to Varignon’s theorem, the algebraic sum of several concurrent forces about any point is equal to the moments of the moments of their resultant about ..

11 months ago

## Laws of Friction

The sliding of a solid body in contact with another solid body is always opposed by force of friction. Friction acts in the direction opposite to that of relative ..

1 year ago

Coefficient of Friction The coefficient of friction (μ), is a measure of the amount of friction existing between two surfaces. A low value of the coefficient ..

1 year ago

## Hooke’s Law and Modulus of Elasticity

Hooke’s Law According to Hooke’s law for a small deformation, the stress in a body is proportional to the corresponding strain.” i.e., stress ∝ ..

2 years ago

## Engineering Mechanics

Engineering mechanics is the study of forces that act on bodies and the resultant motion that those bodies experience. Engineering mechanics subject involves ..

2 years ago

## Types of Mechanical Forces

A force exerted on a body can cause a change in either the shape or the motion of the body. The unit of force in SI system is the newton (N) and CGS system is dyne. ..

2 years ago