26/09/2025
Hooke's Law
Hooke's Law states that the strain in a material is directly proportional to the applied stress, as long as the material remains within its elastic limit. This means that the material will return to its original shape once the applied force is removed. The mathematical representation is:
σ=E⋅ε
Where:
σ = Stress
E = Young’s Modulus (material constant)
ε = Strain
➤Types of Stress
1.Tensile Stress:
This stress occurs when forces are applied to pull a material apart, causing it to elongate.
2. Compressive Stress:
This stress occurs when forces are applied to compress or push the material together, leading to a reduction in size.
3.Shear Stress:
This stress occurs when forces act parallel or tangential to a material's surface, causing one layer to slide over another.
4. Bending Stress:
This stress occurs when a material is subjected to bending forces, creating compression on one side and tension on the other.
5. Torsional Stress:
This stress occurs when a material is twisted along its axis.
➤Types of Strain
1. Tensile Strain:
The deformation (elongation) that occurs due to tensile stress.
2. Compressive Strain:
The deformation (shortening) that occurs due to compressive stress.
3. Shear Strain:
The deformation that occurs due to shear stress, where layers of the material slide past each other.
4. Volumetric Strain:
The change in volume of a material when subjected to stress.
5. Bending Strain:
The strain that occurs when a material is bent due to bending stress.
6. Torsional Strain:
The strain caused by twisting a material, resulting in angular deformation.
Related Hashtag: