Mechanical behavior is a research area that focuses on understanding how materials deform, fracture, and fail under applied forces or loads. This field encompasses the study of the mechanical properties, such as strength, ductility, toughness, and fatigue resistance, of various materials including metals, polymers, ceramics, and composites. Researchers in the field of mechanical behavior use experimental techniques, modeling, and simulation to investigate the mechanisms underlying material deformation and failure, with the ultimate goal of improving the design and performance of engineering materials and structures.