The modulus of elasticity, also referred to as Young’s modulus, is an indication of a material’s stiffness or rigidity. It is the ratio of stress (force per unit area) to strain (deformation) in the elastic region where material returns to its original shape after the load is removed.

Key Features:

• Stiffness Measure: A larger modulus means a stiffer material, meaning that the material can resist deformation under applied stress.
• Load Dependent: Measured within the elastic limit, meaning the material will return to its original shape once unloaded.
• Design Use: An essential consideration when calculating deflection, stress distribution, and stability of structures, machinery, and mechanical components.

The modulus of elasticity is an important consideration in material selection and structural/engineering design. By determining a material's ability to resist deformation, the safety, reliability, and durability of an engineered product are ensured. Engineers will determine how materials will respond to loading, enabling the engineered components to be efficient and reliable in buildings, bridges, vehicles, and other industrial machinery.