In this video, the fundamental terminology related to simple stress and strain such as Longitudinal Strain, Lateral Strain & Poisson's Ratio is explained in following timestamps:
0:00 – Mechanics of Solid Lecture series
0:18 – Outlines on the session
0:37 – Longitudinal Strain
3:04 – Lateral Strain
4:43 – Poission's Ratio
5:38 – Example on Stress and Strain

Following points are covered in this video:
1. Longitudinal Strain
2. Lateral Strain
3. Poission's Ratio
4. Example on Stress and Strain

Engineering Funda channel is all about Engineering and Technology. Here this video is a part of Mechanics of Solids and Engineering Mechanics.

#LongitudinalStress #LateralStrain #PoissionsRatio #EngineeringFunda #MechanicsOfSolids

Details of Longitudinal Strain, Lateral Strain & Poisson's Ratio:

Longitudinal Strain:

Longitudinal strain is the strain that occurs in the direction of the applied force or load. It is defined as the ratio of the change in length of an object to its original length, expressed as a decimal or percentage. Longitudinal strain is typically caused by tension or compression forces and is an important parameter in materials testing and design.

Lateral Strain:

Lateral strain, also known as transverse strain, is the strain that occurs perpendicular to the direction of the applied force or load. It is defined as the ratio of the change in width or thickness of an object to its original width or thickness, expressed as a decimal or percentage. Lateral strain is typically caused by bending or twisting forces and is an important parameter in materials testing and design.

Poisson's Ratio:

Poisson's ratio is a material property that relates longitudinal strain to lateral strain. It is defined as the negative ratio of the lateral strain to the longitudinal strain in a material under a given load. Poisson's ratio is a dimensionless quantity and ranges from -1 to 0.5 for most materials. A value of 0.5 indicates that the material is incompressible, while a value of -1 indicates that the material expands laterally when compressed longitudinally.

Poisson's ratio is an important parameter in materials testing and design, as it can be used to calculate the deformation of a material under load in all directions. It is also used in the design of composite materials and structures, where the different layers may have different values of Poisson's ratio.

In summary, longitudinal strain is the strain that occurs in the direction of the applied force, while lateral strain is the strain that occurs perpendicular to the direction of the applied force. Poisson's ratio is a material property that relates longitudinal strain to lateral strain and is used in materials testing and design to calculate the deformation of a material under load in all directions.