PROCEEDINGS FOR THE SOCIETY FOR EXPERIMENTAL STRESS ANALYSIS VOLUME IX NO 1

Testing Hot Metal Ladles, Use of Phenomenon of relaxation of stresses to interpret results of tests of railway, Stresses in rotating disks due to noncentral holes, factors of stress concentration for the bending case of fillets in flat bars and shafts, and more Stress analysis is an engineering (e.g., civil engineering and mechanical engineering) discipline that determines the stress in materials and structures subjected to static or dynamic forces or loads. A stress analysis is required for the study and design of structures, e.g., tunnels, dams, mechanical parts, and structural frames among others, under prescribed or expected loads. Stress analysis may be applied as a design step to structures that do not yet exist. The aim of the analysis is usually to determine whether the element or collection of elements, usually referred to as a structure, can safely withstand the specified forces. This is achieved when the determined stress from the applied force(s) is less than the ultimate tensile strength, ultimate compressive strength or fatigue strength the material is known to be able to withstand, though ordinarily a factor of safety is applied in design. Analysis may be performed through mathematical modelling or simulation, through experimental testing procedures, or a combination of techniques. Engineering quantities are usually measured in megapascals (MPa) or gigapascals (GPa). In imperial units, stress is expressed in pounds-force per square inch (psi) or kilopounds-force per square inch (ksi). The analysis of stress within a body implies the determination at each point of the body of the magnitudes of the nine stress components. In other words, it is the determination of the internal distribution of stresses. A key part of analysis involves determining the type of loads acting on a structure, including tension, compression, shear, torsion, bending, or combinations of such loads.