Structural analysis is the process of calculating and determining the effects of loads and internal forces on a structure, building or object. Structural Analysis is particularly important for structural engineers to ensure they completely understand the load paths and the impacts the loads have on their engineering design. It allows engineers or designers to ensure a piece of equipment or structure is safe for use under the estimated loads it is expected to withstand. Structural Analysis can either be performed during design, testing or post-construction and will generally account for the materials used, geometry of the structure and applied loads.