Ple4Win 4.6.0 released

Ple4Win version 4.6.0 has been released. This version contains new calculation functionality as well as a number of improvements, modifications and adaptations. For a detailed description of all that is new and changed, please see the online change log.

The key highlights of the new release are:

  • Redistribution of the pipe ovalisations in the ‘Pipeline Behaviour’ design function (5).
  • Values of the material stress-strain diagram can now be exported to Excel.
  • Additional output is generated and reported with pipes under compressive stress for easier user assessment of possible buckling,
  • User interface improvements such as keeping tables and visualizations open during design function changes, if possible.
  • Improved copy-paste (e.g. multi-cell pasting) and Excel import/export (e.g. auto-toggle on import),
  • License type and expiration date (if applicable) now shown in the “About”-screen.

Redistribution of ovalisations

Prior to this new Ple4Win version the redistribution of the pipe ovalisations was performed only in the ‘Cross Section Data’ design function. However, in case of large plastic deformations of the pipe this approach is not completely appropriate because the influence of the redistibution on the curvature of the pipe during the beam calculation – being large – is neglected. Therefore  the option has been added to perform the ovalisation redistribution in the ‘Pipeline Behaviour’ design function already.
If the resulting plastic deformations are moderate, the effect of this redistribution is small, but in the landslide example below it is huge, resulting in much lower strains. When installing the new 4.6.0 version the two landslide projects are delivered as well to illustrate the effect.


  • Program’s response to stopping/aborting calculations improved.
  • Better alert of the user if iteration criterion is not satisfied after completion of the ‘Pipeline Behaviour’ calculations (design function 5).
  • Input tables with errors now show these on opening the table.
  • Unavailable input tables are no longer copied from the secondary database.
  • Better support for problematic graphics cards/adapters.
  • Additional information on ‘ideal’ mitre bend design and better warnings about its model limits.
  • And more …

Courses for Ple4Win users

The performance, accuracy and speed of a project calculated using Ple4Win depends for not a small part on how the project is modeled. More often than not, a good pipeline model has greater benefits than e.g. a faster computer and may prevent lots of calculations on model variations. We are providing for a course on the art of making a good functional pipeline model. This half-day course is primarily intended for experienced users.

For more detailed information, call +31 (0)70 390 2386 or contact EDS.

We also offer courses for inexperienced users and dedicated training for individuals or small groups, focused on specified wishes of the attendees and/or going into details of specific problems the attendees have encountered. The combination of a course together with a project to be calculated is also possible. Again, contact us for more information.

Ple4Win forum

For support or advice, please visit the Ple4Win forum. There you can also read the FAQs, tips & tricks, report your findings or tell us your views.