Stress-Strain Analysis is a method used in engineering and materials science to understand how materials deform under various forces. When a material is subjected to stress, which is the force applied per unit area, it responds by changing shape or size, known as strain. This relationship helps engineers predict how materials will behave in real-world applications, ensuring safety and reliability in structures like bridges and buildings. By studying the stress and strain curves, engineers can determine important properties of materials, such as their strength and elasticity. This analysis is crucial for selecting the right materials for specific applications, ultimately leading to better designs and improved performance in products and structures.