Stress is the force applied to an object per unit area, while strain is the resulting deformation or change in shape of the object. In other words, stress is the cause and strain is the effect.
Young's Modulus, also known as the modulus of elasticity, is a measure of the stiffness or rigidity of a material. It is the ratio of stress to strain for a given material and is typically represented by the letter E.
Young's Modulus is calculated by dividing the stress applied to a material by the resulting strain. The resulting value is a constant for a specific material and is typically expressed in units of Pascals (Pa) or Gigapascals (GPa).
The main factors that affect Young's Modulus include the type of material, its molecular structure, and the temperature at which it is being tested. Generally, materials with stronger and more tightly bonded molecules have a higher Young's Modulus.
Young's Modulus is an important concept in materials science and engineering as it helps us understand how materials will behave under stress and strain. It allows us to predict how a material will deform or fail under certain conditions, and this knowledge is crucial in designing and building structures that are safe and durable.