What is stress , strain in strength of the matrial ?

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Stress and strain are key concepts in the strength of materials, representing the internal forces and deformations experienced by a material under load.

Stress is the force applied per unit area on a material, causing it to deform.
Strain is the measure of deformation experienced by a material in response to stress.
The relationship between stress and strain is described by the material's modulus of elasticity.
Stress-strain curves are used to analyze the behavior of materials under different loading conditions.
Examples include tensile stress causing a material to elongate, and compressive stress causing it to shorten.

What is stress , strain in strength of the matrial ?

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