Linear Elastic Fracture Mechanics

Linear Elastic Fracture Mechanics (LEFM) is a framework used to understand how cracks in materials grow and propagate when they are subjected to stress. It assumes that materials behave elastically, meaning they return to their original shape after the stress is removed, up to a point. LEFM analyzes the stress and strain around cracks to predict when and how they will fracture, aiding in the design of safer structures and materials. By understanding these phenomena, engineers can prevent catastrophic failures in components, such as airplanes and bridges, ensuring they can withstand forces without breaking.