**What is Elastic Modulus?**

Elastic modulus, also known as Young’s modulus, is a material’s ability to resist deformation when subjected to an external force. It is a measure of the stiffness of a material, indicating how much a material can stretch or compress under stress. Elastic modulus is a fundamental property of materials that are used in engineering and industry.

**How is Elastic Modulus Measured?**

Elastic modulus is measured by applying a force to a material and measuring the resulting deformation. The most common method of measuring elastic modulus is by performing a tensile test, which involves stretching a sample of the material until it breaks. By measuring the force required to stretch the material and the resulting deformation, the elastic modulus can be calculated using the equation stress/strain.

**Example of Elastic Modulus in Real Life**

Elastic modulus is a crucial property in many real-world applications. For example, when designing a bridge, engineers need to calculate the elastic modulus of the materials they are using to ensure the bridge can withstand the forces it will be subjected to. Additionally, in the manufacturing of airplanes, elastic modulus is used to determine the strength and durability of the materials used in constructing the aircraft.

**Importance of Elastic Modulus in Engineering**

Elastic modulus is an essential property in engineering as it determines the physical properties of materials used in construction, manufacturing, and design. It helps engineers to select the best materials for a particular application based on their stiffness and strength. Additionally, elastic modulus is used in the design and development of new products, such as medical implants, where the material’s deformation must be precisely controlled to ensure its proper function. In short, the understanding of elastic modulus is critical in the field of engineering as it enables the development of safe, reliable, and efficient products.