Proper documentation of the stress calculation performed using Caesar II or any other stress analysis software is very important as the report or documents are the final deliverable to client. So one should incorporate each and every details of analysis, assumptions if any, basis of design etc. in the final report. Every organization must have
What is Category M Fluid Service for Process Piping Design?
While referring ASME B 31.3 code we come across various types of fluid services. In day to day engineering design activities we normally design and construct systems following rules of Normal Fluid service. Category M fluid service is different from normal fluid service. As defined in clause 300.2 of ASME B 31.3 Category M Fluid
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Pressure Tests of Piping systems-Hydrotest Vs Pneumatic Test
A pressure test is always required for a new pressure system before use or an existing pressure system after repair or alteration to ensure the following: Safety Reliability of operation and leak tightness of pressure systems Also The last physical quality test in the fabrication process Nomally two methods for pressure testing: hydrostatic and pneumatic,
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What is Severe Cyclic Conditions as per Process Piping Code?
Severe cyclic is not a fluid service. It is a condition where fatigue failures are more likely so that additional precautions against fatigue failure are taken. As per ASME B 31.3 it is a conditions applying to specific piping components or joints for which the owner or the designer determines that construction to better resist
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How to perform the buckling analysis of Vacuum Piping
Vacuum piping analysis in START-PROF is analyzed according to GOST 32388-2013 code. To set the vacuum we must specify the negative operating pressure, the difference between internal absolute pressure and atmospheric pressure. If internal absolute pressure is zero (absolute vacuum), then operating pressure should be -0.1 MPa. Features of vacuum piping: Pipes is shortening under
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A literature on “Cold Springing (Cold Pull) In Piping Systems”
Definition of Cold Spring: Cold spring is the process of intentional deformation (usually accomplished by cutting short or long the pipe runs between two anchors) of piping during assembly to produce a desired initial displacement and stress. Cold spring is the intentional stressing and elastic deformation of the piping system during the erection cycle to
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Must have Load cases for stress analysis of a typical piping system using Caesar II
The main objectives of stress analysis is to ensure Structural Integrity (Design adequacy for the pressure of the carrying fluid,Failure against various loading in the life cycle and Limiting stresses below code allowable.) Operational Integrity (Limiting nozzle loads of the connected equipment within allowable values, Avoiding leakage at joints, Limiting sagging & displacement within allowable
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Static Method of Wind Analysis of Piping systems in Caesar II using Pressure Vs elevation Method
Wind analysis is performed based on Client/ITB requirement. Wind load is an occasional load which normally occurs less than 20% of plant operating time. There are two methods for wind analysis-Static and Dynamic. In this article I will try to explain the static method of wind analysis using Caesar II of COADE Inc following Pressure
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Hot Sustained Stress (Lift-Off) Checking in Caesar II
Hot Sustained Stress Checking in Caesar II In Layman’s term Sustained means always present. So sustained stresses are the stresses which are present in the system throughout its operating cycle. Weight of piping system and Pressure inside the pipe are examples of sustained loads which generate sustained stresses in the system. So what is hot
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Few Important points for Stress Analysis based on ASME B 31.4
All my previous articles in this website describe stress analysis methodology using Caesar II based on ASME B 31.3. But I received requests from few pipeline engineers to describe the methodology based on ASME B 31.4. So I am trying to explain few guidelines for performing stress analysis based on ASME B 31.4. Hope it
