Welding Research Council Bulletins WRC-107 and WRC-297 are widely used by Engineers to investigate piping (and other) loads on nozzles within COMPRESS. However, how do you handle geometries that the WRC Bulletins do not cover such as “large” nozzles on formed heads or nozzles on flat covers?

COMPRESS overcomes the WRC Bulletins’ limitations by including a finite element analysis (FEA) tool for nozzles. By using the FEA tool within COMPRESS you are able to:

  • Produce a U-2(g) compliant design by analysis nozzle calculation.

  • Investigate external forces and moments, such as those arising from piping or agitators.

  • Calculate fatigue life due to cyclic mechanical and thermal loads.

  • Produce 3D stress visualizations to pinpoint the governing stress location.

How does it work?

This feature is included in each Standard COMPRESS License.

  1. After you’ve defined the loads, click the FEA button on the tool bar or Ctrl + right-click on the nozzle itself to begin the analysis.
  2. Review your results and, if necessary, modify your design.
  3. Once complete, the FEA output is automatically included in your COMPRESS report, making results easily available for third party review.

More About FEA

The FEA capability within COMPRESS was developed by PRG, the leading FEA experts for vessels and piping. This analysis of combined cyclic pressure, thermal and mechanical loads is based on the design by analysis rules of ASME Section VIII, Division 2.

Having trouble viewing this video?