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FEPipe’s use of the parametric approach allows analysts to construct accurate models using only dimensional input. FEPipe automatically creates the model geometry, element mesh , applied loads and boundary conditions based on a user's dimensions of the applied loads with the ability to edit the model in the Drawing Tools.
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What Does FEPipe Include?
FEPipe Software Capabilities
FEPipe supports several model elements for rapid modeling and analysis as well as an extensive element library that is easily searchable. The table below further outlines this:
ElementComponent | Element Type/Capability |
|---|---|
Shell |
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Brick |
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Vessels |
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Nozzles |
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Supports |
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Bends |
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Flanges |
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Tanks | Tank nozzles per API 650 Round Rat-hole / Oblo-rectangular |
Connective Modeling | Shell Models of Straight Piping Components Bends, Straight, Annular Plates, Heads combined in any order. |
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FEPipe encompasses a variety of features and capabilities to automate and create efficiency for PV&P design and analysis.
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PRG’s FEA solution for PVP design and analysis aims to support the easy and accurate Design By
Analysis
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Analysis
FEPipe supports a variety of analysis features for loads and load cases, nonlinear and linear analysis, and more.
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Evaluates flaws or cracks in pressurized or loaded components using a Level 2 and 3 fitness-for-service analysis
Nonlinear analysis using plasticity, large rotation and large strain
Automated nonlinear SSI and collapse calculations for bends, heads, branches or saddles (all shell geometries)
Provides +Y simple nonlinear supports for saddles, pipe shoes and similar geometries
Leak-Before-Break linear and nonlinear pressure fatigue on thick nozzles and olets
Other Analysis
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Design and code assistance and reporting is available through FEPipe, and even includes built-in WRC calculators to expedite the design process.
WRC 107/537 297 design guidance for spheres, elliptical and dished heads
Recommended SCF for pressure stress on welds interactive local thin area drawings and analysis
Bar supports and local thin areas
ASME Section VIII Div 2 guidance
Provides guidance on the Acoustic Induced Vibration Update (AIV) for determining frequency ranges and stress results for high frequencies.
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Auto fatigue damage calcs for multiple load cases
Path dependent or convergent friction algorithm
Refractory lined piping or GasGlass-lined piping
Hinged expansion joints with friction
FEA for i-factor and k-factor modeling
i-factors/k-factors for flat, conical, elliptical, spherical and dished heads
Pressure fatigue
SuperElement results
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Program | Program Summary |
|---|---|
NozzlePRO | NozzlePRO is a standalone solution that enables users to quickly and easily perform FEA of individual pressure vessel and piping components. |
MatPRO | Is PRG’s own materials database that includes high temperature curves, allowable stress plots, NH reporting, creep-fatigue interaction diagrams, elastic-plastic stress strain curves and fatigue curves generated as a function of creep temperature. |
AxiPROFlangePro | FEA of flanged joints and other axisymmetric geometries. 3D, nonlinear finite element models of gaskets, bolts and flanges are used to calculate stresses, displacements and leakage in and around the flanged joint. Code evaluations of the joint are performed in accordance with ASME Section VIII-1 Appendix 2, ASME BFJ and EN13445 Annex G. |
661PROBoxPro | BoxPRO (formerly 661PRO) analyzes header box nozzles for air-cooled heat exchangers. It also performs tube load analysis for multiple nozzle loads per ASME Section VIII-1 Appendix A per API 661. All nozzle loads are applied to the perforated tubesheet and analyzed per ASME 2004-Div. 2 Art 4-9. |
FE107 | FE107 replaces WRC 107 and 537 as a calculation tool that can be applied when WRC 107 or WRC 297 correlations or assumptions are limited. ASME Section VIII Division 2 allowables are printed along with flexibilities and allowable loads for forces, moments and pressure. |
FESIF | Calculates SIFs and k-factors for standard B31 branch connection geometries. |
FETee | Provides a FEA of contoured tees per user input, B16.9 or EN10253. EN10253 types A and B tees can be defined and thickness profiles determined and appropriate finite element models constructed. Elastic models to produce SIFs and k-factors are generated automatically, along with nonlinear calculations (with or without pressure) for SSIs and loads thru the branch or run. Users may locally thin tees, define the crotch radius and/or the thickness profile around the branch to run penetration line. |
FEBend | Provides a FEA calculation of the local stress and SIFs, SSIs and k-factors for 90 degree elbows with and without supports. Supports include round stanchion as well as structural attachments. |
PCL-Gold Pipe Stress | For piping systems in which there are well-known weaknesses in code approaches, PCL-Gold provides an alternative method for determining whether or not the weakness can cause a potential problem. |
Pipe Shoe Design Wizard | Compares CAESAR II or PCL-Gold selected nodes’ restraint loads at shoe support locations with the allowable loads from a library of FEA shoe supports for every load case in the piping model. The comparison provides shoe design capabilities as well as validation that existing shoes are appropriately designed. |
High Frequency | Acoustic Induced Vibration (AIV) calculation includes the prediction of sound pressure levels measurable away from the surface of the vessel. This tool is used mainly to estimate strength of branch connections and elbows with trunnions when compared a straight pipe. PRG performs high frequency vibration tests to confirm surface integration and prediction of damaging SPL levels. Methods in IEC 60534-8-3 for gas flows are used to generate predicted SPL spectrum. Stresses in high frequency modes are scaled to match defined spectrum responses and predict expected cycle lives. |
Cumulative Damage | Performs fatigue analysis and cycle counting for piping systems that were built using CAESAR II or PCL-Gold. This tool can be used in the following situations:
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BOS B31 | The fluid-structure interaction using frequency domain analysis of piping systems is used to comply with the B31.3 loading requirements in Para. 301.5. |
SIF / SSI / k (PRGik) | Compares SIFs and k-factors from B31 and other codes for branch connections and elbows. Hyper Degree of Freedom (HyperDOF) calculations can be performed for elbows with and without supports with refractory. |
Flaw Detection | Predicts crack growth for given stress states in components to know when the crack will reach half wall and/or thru wall for leaks. This is a quick calculation based on observed crack growth in tested low carbon steel components. |
MimOut Point Clouds | Plant scan data (point cloud data) processing is combined with 3D modeling utilities to compare computer model estimates of what is in the field to what physically exists. Both high and low-resolution editing is provided. |
Drawing Tools | Available with all modules except AxiPRO, the Drawing Tools provide hundreds of small functions to modify, evaluate and document the model created. |
Nonlinear Analysis | This capability computes burst pressures, sustained stress indices, twice elastic slope load levels, and a variety of load and unload conditions. |
Fitness for Service | Perform level 1, level 2 and level 3 (through the Drawing Tools) Fitness for Service calculations. Local thin areas and cracks can be added into the model for level 3 calculations. API 579/ASME FFS-1 allows the use of ASME Section VIII Division 2 Part 5 for Elastic, Elastic-Perfectly Plastic and Elastic-Plastic FEA analysis. |
FEATools | Transform your piping model (from CAESAR II and PCL-Gold) by including upgraded branch connections (with the addition of rigid elements and restraints) to better simulate real-world displacement and forces. The FEA-based calculations provide the necessary k-factors, SSIs and SIFs that will be added to every branch connection. |
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