Structural Mechanics is a branch of engineering that focuses on understanding how structures support loads and resist forces. It involves analyzing materials and shapes to ensure that buildings, bridges, and other constructions can withstand various stresses without collapsing or deforming. This field combines principles from physics, material science, and mathematics to predict how structures behave under different conditions. Engineers use these principles to design safe and efficient structures, taking into account factors like weight, wind, and earthquakes to ensure stability and durability.