If you are looking for Canada BasedEngineering Consultant Services or training courses in Structural Engineering, Piping stress analysis, Power / Process Piping Design, Pressure Vessels Design (As per American / Canadian / International Standards and Codes) ; Little P.Eng. for Engineering Services & Engineers Training is ready to help you across Canada, USA and Arabian Gulf Area.
Failure Theories The failure theories most commonly used in describing the strength of piping systems are the maximum principal stress theory and the maximum shear stress theory (also known as the Tresca criterion).
The maximum principal stress theory forms the basis for piping systems governed by ASME B31 and Subsections NC and ND (Classes 2 and 3) of Section III of the ASME Boiler and Pressure Vessel Codes. This theory states that yielding in a piping component occurs when