Young's modulus of elasticity is a physical quantity that characterizes the tensile or compressive resistance of material within the elastic limit. It is related to the object's fabric and has nothing to do with the object's shape. It is the modulus of elasticity along the longitudinal direction, and it is also a term in material mechanics.

**Difference from modulus of elasticity**

**Young's modulus**is a physical quantity that describes the relationship between stress and strain in the axial tensile state of a material in the elastic stage.**Modulus of elasticity**is a physical quantity that describes the stress-strain relationship of a flexible body (including one-dimensional, two-dimensional and three-dimensional) in the rubbery phase.

Young's modulus is a kind of modulus of elasticity. In addition to Young's modulus, modulus of elasticity also includes shear modulus, bulk modulus, compression modulus, etc.

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