Stress analysis is a method used to determine how materials and structures respond to forces and loads. It helps engineers understand where stress concentrations occur, which can lead to failure or deformation. By analyzing these stresses, engineers can design safer and more efficient structures. The process often involves mathematical models and simulations to predict how materials behave under different conditions. Common applications of stress analysis include civil engineering, mechanical engineering, and aerospace engineering. This analysis ensures that structures like bridges, buildings, and aircraft can withstand the forces they encounter during their use.