CAEPIPE Analysis

CAEPIPE performs linear and non-linear static and dynamic analyses of 3D piping systems using optimized, tested and verified solution algorithms using some of the most advanced programming methods available. Below, you will find a sampling of the types of analyses you can do with CAEPIPE.

See Video of Analysis Speed in action

Types of Loads

  • Weight and up to 10 pressures (i.e., up to 11 sustained cases)
  • External pressure(s) can also be input
  • External forces and moments for up to 10 thermal cases + 1 max sustained case
  • Hydrotest case
  • Up to 10 thermal loads with 50+ thermal range (expansion)
  • Up to 10 thermal displacements for anchors and nozzles (expansion)
  • Up to 10 operating cases (combination of weight, pressure and temperature)
  • Flange equivalent pressures for 10 operating cases
  • Rotating equipment reports for 10 operating cases
  • Up to 4 wind loads (occasional cases)
  • Seismic anchor movements (occasional)
  • Static seismic acceleration (g-load) (occasional)
  • Force spectrum load (occasional)
  • Seismic response spectra (occasional)
  • Harmonic loads, e.g., periodic excitation from equipment such as pumps (occasional)
  • Time history loads, e.g., a fluid hammer (occasional)
  • Non-repeated anchor movement (settlement)
  • Peak pressure for occasional loads
  • 95+ load combinations
  • Support Load Summary for 150+ load combinations
caepie dialog box showing load cases selected

Load cases you can select for analysis

Automatic Spring Hanger design from a library of 35 hanger catalogs

Modal Analysis - Fast Eigenvalue solver

Seismic Response Spectrum Analysis

  • Uniform response spectrum analysis
  • Multi-level response spectrum analysis
  • Spectrum input can be in the form of:
    • Frequency (or period) versus Displacement
    • Frequency (or period) versus Velocity
    • Frequency (or period) versus Acceleration
  • Linear or logarithmic interpolation
  • Multiple units supported
  • Spectra can be entered interactively or through a text file
  • Missing mass (left-out force) correction for Uniform response spectrum can be included.

Combination Method can be:

  • Square Root of Sum of Squares (SRSS)
  • Absolute (ABS) Sum
  • Closely Spaced Modes as per USNRC Reg. Guide 1.92
  • Naval Research Laboratory (NRL) Sum

Level Summation for Multi-level can be:

  • Square Root of Sum of Squares (SRSS)
  • Absolute (ABS) Sum

Time History Analysis

    Time functions can be input inside CAEPIPE or imported from a text file

Harmonic Analysis

Force Spectrum Analysis

  • Force spectra functions can be input inside CAEPIPE or imported from a text file or can convert existing time functions into force functions.
  • Pressure Relief Valve loading analysis.

FRP Piping Analysis (with user-specified stress allowables in different directions)

Buried piping analysis including automatic discretization of elements as per ASME B31.1

Refinement of Nodal Mesh based on user-input Mass Modeling Frequency

Refinement of Branch Elements to compute Flexibility Factors at Branch in accordance with ASME B31J

Internal and External Pressure Design of pipe and pipe fittings as per SS EN 13480-3 (2017)

Flange Qualification

  • Flange & Bolt stresses as per ASME Section VIII Division 1
  • Flange with High Strength Bolts as per NC.3658.3 of ASME Section III Class 2 (2017)
  • Flange equivalent pressure as per
    • NC.3658.1 of ASME Section III Class 2 (2017)
    • Eq. 6.6.1-2 of EN 13480-3 (2020)

Calculation of allowable loads on nozzles to spherical and cylindrical shells as per EN 13445-3:2014/A8:2019

Calculation of local shell stresses as per WRC Bulletin 537 and evaluation of those stresses as per ASME Section VIII, Division 2 for Nozzles attached to Cylindrical and Spherical Vessels

Evaluation of Hollow Circular Attachment (Lug) and Solid Rectangular Attachment (Lug) welded to Pipe as per ASME Section III, Division 1 (NC & ND) and EN 13480.

Computation of Design Wind Forces as per ASCE/SEI 7-16

Computation of Static Seismic g's as per ASCE/SEI 7-16

Computation of Design Wind Forces as per EN 1991-1-4 (2010)

NEXT: Results Review