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FEPipe’s use of the parametric approach allows novice finite element analysts to construct accurate models using only dimensional input. FEPipe automatically creates the model geometry, element mesh, applied loads and boundary conditions based on standard dimensions with the ability to edit in the Drawing Tools editor.
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What Does FEPipe Include?
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FEPipe supports several model elements for rapid modeling and analysis as well as an an extensive element library that is easily searchable. The table below further outlines this:
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PRG’s standalone FEA solution for piping aims to support the easy and accurate Design By Analysis functionality and features, including:
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Weight, operating, occasional, thermal and pressure
Wind and seismic loads
Acceleration due to ship motion or transportation
Internal or external pressure
Applied point or surface loadings
Piping loads applied to nozzles
Combination loads through the run that correspond with B31.3, 319.2.2 Overload Calculation ASME Code Classification Update Updated Bends with Trunnion Models
Collapse load model perturbation and buckling for heads, cylinders, bends and branch connections
Automatic SIF values and allowable loads
Nonlinear
Evaluates flaws or cracks in pressurized or loaded components using a Level 2 and 3 fitness-for-service analysis.
Nonlinear or elastic analysis to determine plasticity
Nonlinear and linear analysis
Automated Nonlinear SSI and Collapse Calculations for Bends, Heads, Branches or Saddles
Updated Nonlinear Material Large Rotation / Large Strain Solver
+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
Dynamic/modal and harmonic analysis
Steady state and transient thermal analysis
Fatigue analysis
Eigenvalue buckling
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Stress stiffening for
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Evaluates flaws or cracks in pressurized or loaded components using a Level 2 and 3 fitness-for-service analysis.
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large displacement
Design and Code Guidance on Advanced Geometries
Design assistance and reporting is available through FEPipe, and even includes built-in WRC calculators to expedite the design process.
WRC 107/537 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
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Provides automatic nonlinear Sustained Stress Indexes (SSI) and collapse calculations for heads, branches and saddles
Uses elastic-plastic and non-linear FEA solvers to determine the most accurate nominal stress states
Uses the Drawing Tools feature to provide interactive drawings of components for local thin areas
Sustains multiple load cases at a time so that combination loads thru the run can be performed
Provides guidance on the Acoustic Induced Vibration Update (AIV) for determining frequency ranges and stress results for high frequencies.guidance on the Acoustic Induced Vibration Update (AIV) for determining frequency ranges and stress results for high frequencies.
PCL-Gold Pipe Stress Module
PCL-Gold is a standalone module that is included in FEPipe that is the first pipe stress program to automatically run finite element analysis on local intersections. Additionally features include:
Auto fatigue damage calcs for multiple load cases
Path dependent or convergent friction algorithm
Refractory lined piping or Gas-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
As a standalone module, PCL-Gold also connects to the latest version for FEATools. To find out more, visit https://www.paulin.com/pcl-gold
Programs in FEPipe
Along with a variety of features, NozzlePRO FEPipe utilizes several programs to provide the ultimate FEA solution for pressure equipment and piping designs. A few include:
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The Pipe Shoe Wizard creates an FEA model of a pipe shoe on a cylinder to calculate local stress.The Drawing Tools allow the user to add gussets, rings, clips and other attachments to an existing model.
Vessel Link allows the user to import models of any file type from DesignCalcs, Finglow, Codeware Compress and other Pressure Vessel design software to perform FEA.
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FEPipe’s Fitness for Service program, API 579 Fitness for Service, allows for the direct entry of know flaw/corrosion details. Enter the flaw dimensions directly (into the Critical Flaw Dimensions section), or the dimensions can be entered in a spreadsheet grid and the Critical Flaw Dimensions section will be automatically calculated. Users can also define the defect on the model graphically by drawing the defect on the model.
Users can add Local Thin Areas (LTA) and crack-like flaws using FEPipe, NozzlePRO or the Drawing Tools to perform API 579 or ASME FFS-1 Level 2 or 3 type analysis. Level 3 allows the use of ASME Section VIII Division 2 Part 5 Design by Analysis when the LTA or crack-like flaws are included in the shell or brick models.
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Results Veric
Additional Programs
Program | Program Summary |
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MatPRO | MatPRO is PRG’s 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 funtion of creep temperature. |
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. |
High Frequency | Provides AIV calculation predictions of pressure levels from the surface of the vessel. This program is mainly used to:
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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. |
Nonlinear Analysis | Computes burst pressures, sustained stress indices, twice elastic slope load levels b, and a variety of load and unload conditions. |
Degree of Conservatism | This tools aids in determining the degree of conservatism on models. |
FE107 | FE107 replaces WRC 107 as a calculation tool that can be applied when WRC 107 or WRC 297 calculations or assumptions are limited. ASME Section VIII Div 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 | Along with performing FEA of contoured tees per user input, B16.9, or EN10253, this program mainly:
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