What is Stress strain curve?
Stress strain curve for mild steel is a graphical representation of the relationship between stress and strain in a material. It is commonly used to characterize the mechanical behavior of materials and is essential in fields such as materials science, engineering, and physics.
The stress strain curve is typically obtained through a tensile test, where a specimen of the material is subjected to an increasing axial load (tensile force) until it reaches failure.
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| stages in stress strain curve for mild steel in obtained through tensile test |
During the test, the applied load and the resulting deformation (strain) are measured.
The stress (σ) is defined as the force (F) applied to the specimen divided by the cross-sectional area (A) of the specimen:
σ = F / A
The strain (ε) is defined as the change in length (∆L) of the specimen divided by its original length (L):
ε = ∆L / L
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