October 2022 ~ MECHTECH GURU

Resilience, strain energy, proof resilience, modulus of resilience

Resilience When a body is loaded within elastic limit, it changes its dimensions and on the removal of the load, it regains its original dim...

Impact Stress Sometimes, machine members are subjected to the load with impact. The stress produced in the member due to the falling load is...

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 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 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 Hooke's law states that when a material is loaded within elastic limit, the stress is direc...

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

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

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

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

Selection of Materials for Engineering Purposes The selection of a proper material, for engineering purposes, is one of the most difficult p...

Engineering materials and Physical Properties of Metals The physical properties of the metals include luster, colour, size and shape, densi...