October 2022 ~ MECHTECH GURU

## Linear and Lateral Strain: Poisson's Ratio, Volumetric Strain, Bulk Modulus and Relation Between Bulk Modulus, Young’s Modulus and Modulus of Rigidity

Linear and Lateral Strain Consider a circular bar of diameter d and length l, subjected to a tensile force P as shown in Fig. (a). Linear an...

## Factor of Safety: Factor of Safety of ductile and brittle materials

Factor of Safety It is defined, in general, as the ratio of the maximum stress to the working stress. Mathematically, Factor of safety = Max...

## Shear Stress and Strain: Shear Modulus or Modulus of Rigidity

Shear Stress and Strain When a body is subjected to two equal and opposite forces acting tangentially across the resisting section, as a res...

## Young's Modulus or Modulus of Elasticity and Hooke's law

Young's Modulus or Modulus of Elasticity Hooke's law states that when a material is loaded within elastic limit, the stress is direc...

## Stress, Strain, Tensile Stress and Strain

Stress When some external system of forces or loads acts on a body, the internal forces (equal and opposite) are set up at various sections ...

## CLASSIFICATION OF RAILWAY LINES:

CLASSIFICATION OF RAILWAY LINES In the foregoing paragraphs, the factors contributing in deciding the track structure have been brought out....

## Manufacturing considerations in Machine design

Manufacturing considerations in Machine design  Manufacturing Processes The knowledge of manufacturing processes is of great importance for ...

## Effect of Impurities on Steel

Effect of Impurities on Steel The following are the effects of impurities like silicon, sulphur, manganese and phosphorus on steel. 1. Silic...

## Steel: Classification of steel depending upon the carbon content

Steel It is an alloy of iron and carbon, with carbon content up to a maximum of 1.5%. The carbon occurs in the form of iron carbide, because...

## Mechanical Properties of Metals

Mechanical Properties of Metals The mechanical properties of the metals are those which are associated with the ability of the material to r...