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Mechanical Engineering
Karan arya

Strain Stress Graph For Mild Steel | Stress Strain Curve For Steel

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Stress strain graph could be a behavior of fabric once it's subjected to load. during this diagram stresses area unit aforethought on the vertical axis and as a results of these stresses, corresponding strains area unit aforethought on the horizontal axis. As shown below within the stress strain curve.

Stress :

The term stress (s) is used to express the loading in terms of force applied to a certain cross-sectional area of an object. From the perspective of loading, stress is the applied force or system of forces that tends to deform a body.
Strain Stress Graph For Mild Steel
Strain Stress Graph
i.e. Stress = force / cross sectional area:
where,
σ = stress,
F = force applied, and
A= cross sectional area of the object.
Units of s : Nm-2 or Pa.
 

Strain:

Strain is the response of a system to an applied stress. When a material is loaded with a force, it produces a stress, which then causes a material to deform. Engineering strain is defined as the amount of deformation in the direction of the applied force divided by the initial length of the material.
Strain = extension / original length
where,
ε = strain,
lo = the original length
e = extension = (l-lo), and
l = stretched length

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