Modulus of elasticity (or Young's Modulus) is a measurement of the rate of change of strain as a function of stress. It represents the slope of the straight-line portion of a stress-strain curve. With respect to tensile testing, it may be referred to as Tensile Modulus.
This method of testing is used to determine a sample's behaviour under an axial stretching load. Common tensile test results include elastic limit, tensile strength, yield point, yield strength, elongation, and Young's Modulus. Young's Modulus is reported commonly as N/mm2 (lbs/in2), MPA (psi).
Typical graph showing modulus of elasticity / Young’s Modulus:
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