قراءة لمدة 1 دقيقة Stress–strain curve

A stress-strain curve is a graph that is used to describe the relationship between stress and strain of a specific material.
Stress is captured on the y-axis and strain on the x-axis.
Stress is the amount of force needed to change the material's shape:
in this case, to make it longer.
Strain is a measurement of how much the shape changes.

This graph is usually made by testing a material with a tensile test.
A force, of varying amount, is used to pull the sample apart at a constant rate until it breaks.
This graph is used to show important characteristics of a material such as the yield strength, ultimate strength, fracture point, strain hardening, necking and Young's modulus.