Rockwell Hardness Test is the most commonly used hardness tests after Brinell Hardness Test, named after the metallurgists Stanley P. Rockwell and Hugh M. Rockwell ..
A key is a machine element fitted in an axial direction into the mating member, such as pulleys, gears. The primary function of the key is to prevent the relative ..
Structural failure can be avoided if the loads that a structure is capable of supporting are greater than the loads it will be subjected to when in service. Since ..
Knoop hardness test method (Microhardness test method) is applicable to extremely thin metals, plated surfaces, very hard and brittle materials, carburized and nitrided ..
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 ..
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 ..
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 ..
Beams are generally horizontal structural members which transfer loads horizontally along their length to the supports where the loads are usually resolved into ..
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 ..
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 ..
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 ..
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 ..
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 ∝ ..
Engineering mechanics is the study of forces that act on bodies and the resultant motion that those bodies experience. Engineering mechanics subject involves ..