Pipe Stress Analysis Software

3D Finite Element Analysis and Design

Structural engineering FEA software RFEM is the basis of a modular software system. RFEM is used to define structures, materials, and loads for planar and spatial structural systems consisting of plates, walls, shells and members. The program also allows you to create combined structures as well as model solid and contact elements.

Modeling of Pipelines

RF‑PIPING can model pipelines and define loads conforming to relevant standards.

It is possible to define specific piping components such as valves, reducers, fittings, flanges, tees, expansion joints, and others, and consider them together with the supporting structure.

Piping Design and Pipe Stress Analysis

RF‑PIPING Design compares the existing pipe stresses with the allowable stresses according to EN 13480‑3, ASME B31.1 and ASME B31.3.

Dynamic Analysis of Vibrations and Seismic Design

For dynamic analysis of piping systems, there are various add‑modules available for determination of natural vibrations and mode shapes, forced vibration analysis and generation of equivalent lateral loads for earthquakes.

Knowledge Base | Piping Systems

  1. Wall Thickness Allowances in RF-PIPING

    Wall Thickness Allowances

    For stress calculations, some standards use ‘analysis wall thickness’, which we get by subtracting corrosion, abrasion allowance, manufacturing allowances (threading, grooving, etc.), and mill tolerances from nominal wall thickness. All needed values can be entered in the ‘Piping Cross‑Section’ dialog box, ‘Stress Analysis Parameters’ tab.

  2. Automatic Load Combination in RF-PIPING

    Automatic Load Combination

    Like in RFEM, load combinations can be automatically generated in RF‑PIPING. This feature is activated by default and creates the recommended load and result combinations for piping design. It is necessary to assign the relevant action category to load cases in order to generate correct combinations. For this, there are new action categories implemented specifically for loads on piping.

More Useful Features and Technical Articles

Screenshots | Piping Systems