Finite element analysis (FEA) is a computer-based engineering simulation technique used to analyze the behavior of structures and systems under various loads and conditions. FEA uses mathematical algorithms and computer modeling to divide a complex structure or system into a series of interconnected elements, such as beams, plates, or shells, and to analyze the behavior of these elements under different loads and conditions.

FEA is commonly used in a wide range of industries, including aerospace, automotive, and civil engineering, to evaluate the strength, stiffness, and stability of structures and systems. FEA can be used to analyze the response of a structure or system to various loads, such as gravity, wind, or earthquake, and to predict its behavior under different operating conditions. FEA can also be used to optimize the design of a structure or system, by identifying areas that may be prone to failure or that could be improved for better performance.