Mitre bends may frequently occur in low pressure pipelines like potable and waste water lines. These bends can be calculated with the theory for smooth bends under certain conditions…
Up to Ple4Win version 4.5.0 only smooth bends could be applied. In case of a mitre bend an equivalent smooth bend radius had to be determined by the user such that the bending stiffness was equal to the bending stiffness of the mitre bend. Then the calculation of the equivalent bend radius is dependent on the analysis type, because of the bend behaviour approach: 1st order for NEN 3650, Belgian law and ASME, 2nd order for General. Moreover stress correction factors have to be determined and applied. In a word a time-consuming method.
In the new mitre bend module two input data are required to enable the program to calculate the equivalent bend radius. No extra effort by the user is necessary anymore. The mitre bend model has been verified based on test results. The limits for the field of application are clearly indicated and based on mitre bend test results as well and pipeline codes.
Steel in Steel
The Steel-In-Steel (SIS) or Steel-Cased-Pipeline (SCP) module allows modelling structures where an inner (medium) steel pipe is encased by an outer (casing) steel pipe for either thermal isolation or as an additional safety precaution. The two pipes can be connected by either fixed connections or roller connections. The latter allows axial movements of the inner pipe with respect to the outer pipe. Both trench-laid SIS sections and horizontally directional drilled (HDD) sections can be modelled. Any movement of the outer pipe is automatically transferred to the inner pipe through the rollers and fixed connections. Movements of the inner pipe (e.g. thermal loads or pre-stressing) are transferred to the outer pipe as well.
A short demo:
3D Visualisation Module
Using the visualisation, more complex configurations can easily be checked on correctness. When visualising result data, the element with the highest (red) value can easily be found.
A short demo:
Try out the 3D Visualisation module in the free Ple4Win Educational version.
Soil Model Wizard
Wizards are add-on modules for Ple4Win aiming for an easy interface to supply Ple4Win with project data. The first Wizard developed is the Soil Model Wizard. This Wizard simplifies the obtainment of soil mechanical values through basic soil properties. A step-by-step graphical information is supplied to assist the user in the process. The Soil Model Wizard supports the user with graphical information that gives the user a lot of feed-back….