Young's Modulus

Young's Modulus, often represented by E, is a measure of the stiffness of a material. It defines the relationship between stress (force per unit area) and strain (proportional deformation) in a material in the linear elasticity regime of a uniaxial deformation. Young's Modulus is named after the 19th-century British scientist Thomas Young.

To calculate Young's Modulus, you divide the stress in pascals by the strain, which is unitless since it is a measure of deformation (change in length divided by original length). The modulus is expressed in units of pascals (Pa) or often in gigapascals (GPa) in the field of material science and engineering.

Young's Modulus is crucial in engineering and construction because it helps predict how much a material will deform under a certain load, which in turn affects how materials are selected and used in structures, such as bridges, buildings, and machinery.