Stress:
Stress is the force per unit area that acts on a material when it is subjected to external forces. It is a measure of the amount of pressure being applied to a material.
Stress Formula:
Stress (σ) is defined as the force (F) applied to an object divided by the cross-sectional area (A) it is applied to:
σ = F / A
Strain:
Strain is the change in length or shape of a material in response to an applied stress. It is a measure of how much a material deforms under a given stress.
Strain Formula:
Strain (ε) is defined as the change in length (ΔL) divided by the original length (L) of an object:
ε = ΔL / L
