Question

Differentiate between stress and strain.

Answer 1

Answer:

Stress Strain

Stress is the restoring or deforming force per unit area. Strain is the change in shape per original shape.

Its formula is σ = F/A Its formula is ∈ = ΔL/L

Its unit is N/m² It has no unit

Answer 2

Answer:

Stress :-

• It is known as force applied on unit area to produce change in shape, volume or length of a body.
• The SI unit of stress (σ) is newton per square meter (Nm-2),which is given the name pascal (pa).
• It's unit is N/m².
• Stress is of three types :-

1. Tensile Stress.
2. Compressional Stress.
3. Shear Stress.

Strain :-

• It is a measure of the deformation of a solid when stress is applied to it.
• Its formula is ∈ = ΔL/L.
• It has no unit.
• Strain is of four types :-

1. Tensile Strain.
2. Compressional Strain.
3. Volumetric Strain.
4. Shear Strain.

Explanation:

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