Pipe Wall Thickness: Deflection Analysis Part 1 ⬇️⬇️⬇️⬇️⬇️
Pipe Wall Thickness: Deflection Analysis Part 2 ⬇️⬇️⬇️⬇️⬇️
Forwarded from Piping Stress Analysis (PSA Group)
Piping Flexibility Analysis and the Development of PCS – Pipe Calculation System for FEA
Forwarded from Piping Stress Analysis (PSA Group)
The current framework for piping stress analysis is based on a simplified calculation method directly derived from experimental research performed over 60 years ago in the 1940s and 1950s. This framework was originally intended for hand calculations and, apart from minor changes and amendments, has been successfully employed by piping engineers since its development. As computational power increases and finite element analysis (FEA) becomes accessible for piping engineers, it has become clear that this framework is not well suited for complex FEA evaluation of piping. Advanced FEA procedures enable engineers to perform in depth evaluation of piping systems that are extremely difficult or even impossible to evaluate through traditional methods. Contrasting to traditional methods, a FEA simulation allow engineers to evaluate creep-fatigue interactions, advanced material models, complex loadings, complex geometries, complex support conditions, as well as the inherent evaluation of fatigue stress intensification factors. A major difficulty for performing piping FEA simulation is that currently there are no high performance FEA packages capable of efficiently generating the required analysis model for complex piping systems.
Forwarded from Piping Stress Analysis (PSA Group)
Final piping layout and support design are highly dependent of its global mechanical evaluation and should be properly defined during design phase. When necessary, several layout iterations may be needed until a satisfactory solution is found. These iterations are time consuming and all changes must be propagated to other disciplines involved in the project (i.e.: civil works, stationary equipment, rotary equipment, instrumentation, etc...). Even though during its operational life a piping system may experience several loading conditions, one of the most important is thermal expansion. The importance of this loading condition increases along with pipe lengths and temperatures, in many cases dictating the pipe route that must be followed.
Forwarded from Piping Stress Analysis (PSA Group)
Some possible failure modes that can be associated with these loading conditions based on type of loading and/or environmental condition.