Finite Element Analysis (FEA) is a computational technique used to predict how objects respond to external forces, vibrations, heat, and other physical effects. It breaks down complex structures into smaller, manageable pieces called finite elements, allowing engineers to analyze the behavior of materials and designs under various conditions. FEA is widely used in fields such as mechanical engineering, civil engineering, and aerospace engineering to optimize designs and ensure safety. By simulating real-world conditions, FEA helps identify potential weaknesses and improve product performance before physical prototypes are built, saving time and resources in the development process.