Hooke’s Law
Hooke’s Law states that the strain of the material is proportional to the applied stress within the elastic limit of that material. When the elastic materials are stretched, the atoms and molecules…
LONGITUDINAL STRAIN AND LATERAL STRAIN
STRAIN When a body is subjected to an axial load, there is increase in length in one direction at the same time the dimensions decrease in perpendicular directions. Hence, the…
Elongation of a bar due to its Own weight
Analysis of a hanging beam: A BAR HANGING Let AB is the rod hanging from a ceiling from the end A. Then let, W= Unit weight of the bar, L=…
Poisson’s Ratio
Poisson's ratio is defined as the negative of the ratio of the lateral strain to the axial strain for a uniaxial stress state. If a tensile load is applied to…
Elastic Modulii
Types of Elastic Modulii There are two types of elastic modulus based on the nature of the stresses: 1)Modulus of Elasticity ( compressive or tensile stress ) 2)Modulus of Rigidity ( Shear stress )…
Bulk Modulus
Bulk modulus is defined as the proportion of volumetric stress related to the volumetric strain for any material. In much simpler words, the bulk modulus is nothing but a numerical…
Expression for Young’s Modulus in terms of Bulk Modulus.
Young’s Modulus is the ability of any material to resist the change along its length. Bulk Modulus is the ability of any material to resist the change in its volume.…
THERMAL STRESSES
Stress which is induced in a body due to change in the temperature is known as thermal stress and the corresponding strain is called thermal strain. Thermal stress induces in…
Relationship between Modulus of Elasticity and Modulus of Rigidity
Modulus of elasticity () and the modulus of rigidity () are related by the following equation: Here, represents a number called Poisson’s ratio given to the particular material. When the material is being…
The Importance of P&I club in shipping
Protection is required for the safe working of seafarers and ships, and indemnity is necessary to compensate for any loss of life, environment and property. P & I club is an…
