Piping Stress Basics Archives - What is Piping

Piping Stress Basics

What is Flow-Induced Vibration (FIV) in a Piping System [With PDF]

What is Flow-Induced Vibration or FIV? Flow-Induced Vibration or FIV is a large-amplitude, low frequency (generally <100 Hz) vibration that can occur in piping systems carrying high-velocity turbulent fluids. Flow-induced i.e, the fluid flow generates high kinetic energy that forces the piping system to vibrate. It is more prevalent near the turbulent sources such as …

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Thermal Bowing in Caesar II

Piping Thermal Bowing Consideration in Caesar II with an example [With PDF]

What is Piping Thermal Bowing? Piping Thermal Bowing or Bowing is an effect that occurs in horizontal piping run due to large circumferential temperature gradients which have the potential to cause large unacceptable local thermal stresses in the pipe walls leading to fatigue failure and high loads at pipe supports and connected equipment. The pipe …

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Load Cases for Stress Analysis of a Critical Piping System Using Caesar II [with PDF]

Piping Stress Analysis is simply creating the load cases required for analysis and study the impact of the same on the behavior of the critical piping systems. So Stress Analysis can not be thought without proper load case creation. Sometimes these load cases are mentioned in the piping stress analysis design basis. In this article, …

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Webinar Recording of “PASS/START-PROF Pipe Stress Analysis”

The much-awaited PASS/START-PROF Pipe Stress Analysis Webinar Recording is now Available! The important points that are covered in the session are: Agenda of the Webinar Brief START-PROF Software History Model Creation Tools Modeling Supports, Checking Allowable Loads, Checking Stresses Operation Mode Editor (Load Cases), Seismic, Wind, Snow, Ice Loads Spring Selection Expansion Joints Modelling Flange …

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Typical pump routings

Requirement of Flexibility in Piping Design [With PDF]

Requirement of Flexibility Providing the required flexibility for absorbing the thermal movements of the piping system is one of the important activities in piping design. A rigid piping system experiences stress during operation at high temperatures. Providing sufficient flexibility in routing will ensure stresses in the piping system is within acceptable limits. So it is …

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Several ASME B31 & EN 13480 Issues Needed to Know for Pipe Stress Engineer

Axial Stress from Pressure Load, Axial Force and Torsion Moment This issue lead to serious under-estimation sustained and expansion stresses in pipes and fittings in ASME B31.1-2018, ASME B31.4-2016, ASME B31.5-2016, ASME B31.8-2016, EN 13480-2017, ISO 14692 and some other codes. For example let’s take ASME B31.1-2018 code that requires using following equation for stress …

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