Discover the geotechnical improvements in PLAXIS 3D 2017

05 September 2017
Discover the geotechnical improvements in PLAXIS 3D 2017

Plaxis is proud to announce the official release of PLAXIS 3D 2017.00.  This new release brings countless tweaks, minor improvements, and several major features expanding the geotechnical capabilities of PLAXIS 3D.

Major features improving geotechnical capabilities include:

  • non-linear geogrids (with creep)
  • elastoplasticity for beam and plates
  • improved sequence definition for NATM tunnels
  • cross and parallel permeability for interfaces
  • dynamic loading for rigid bodies
  • Hoek-Brown parameter guide

 PLAXIS 3D 2017 also brings export of CAD geometry via the user interface, useful in BIM workflows or even for 3D printing and much more. Learn about all new additions to PLAXIS 3D 2017 below.

Export PLAXIS model to CAD

Via the user interface, users can now export their whole PLAXIS model to CAD format. This can also be done through the command line where additional conditions can be given, exporting only parts of the model. The exported model can be used for post-processing or incorporation into BIM workflow. With command based *.STL generation PLAXIS models are suitable for 3D printing.


Cross and parallel permeability in interfaces

In the Interfaces tab of the material dataset users can now select between permeableimpermeable and semi-permeable options to define the cross permeability.  Parallel permeability in two directions can be defined here as well. Output facilities have been extended with options to inspect the flow through and along the interfaces.

Non-linear geogrids: Elastoplastic (N-ε) & Viscoelastic (time-dependent)

PLAXIS 3D 2017 introduces two new types of behavior for geogrids. Users can now include elastoplastic, or viscoelastic behavior. For the elastoplastic behavior user can define N-epsilon diagrams. With the viscoelastic behavior, creep can be taken into account for geogrids.

Elastoplasticity for plates and beams

The material models for beams and plates have been extended with an option for elastoplasticity. Users can input yield stress and moment of resistance, and in the side panel cross-sectional properties, plastic moment and axial force can be viewed, calculated from the input parameters. Output has been updated with tools to inspect if and where plasticity in the structural elements occurred.


Improved sequence definition for NATM tunnels

In PLAXIS 3D 2017 users can now select between TBM and NATM excavation methods. The “NATM” method introduces new behaviour for the automatic generation of the construction stages. Users can define a number of slices after which the tunnel face propagation will halt. In subsequent phases those slices will first be fully excavated before the tunnel face propagates again. This behaviour is more in line with NATM excavations in practice.

Revolve around axis tool

Users can use the Revolve around axis tool to easily create a revolving extrusion along an arbitrary axis and number of degrees to create volumes, shells or surfaces. This offers a powerful tool for modelling circular structures or parts thereof like LNG tanks, or dome shape objects, natively in PLAXIS 3D. Combining this with the existing combine, intersect and extrude tools, users can create complex shapes in their models.

 Dynamically loaded rigid bodies

Users can now apply dynamic loading to rigid bodies allowing them to model for example cyclic loads due to wind or wave loading on wind turbine foundations, or any other types of foundation which may be modelled as a rigid body.

 Multiply command for numeric properties (VIP)

The multiply command can be used to for instance multiply a set of loads with various load components by a factor higher or lower than 1. This command can be issued in the various modes on numerous objects, and especially for staged construction offers a convenient way to explore alternate load conditions, thermal conditions, initial conditions etc.

Command line improvements

3D 2017 brings some improvements for the command line window. Users can now right click in the command line window and choose the Pop-out option to detach the command line window from the program. In addition some extra options to copy all successful commands or responses are available.

Hoek-Brown parameter guide (VIP)

Via the side-panel of the Hoek-Brown material model users can find an interactive parameter guide for the model, consisting for example of selectable rock types and proposed magnitudes for the UCS, a searchable and clickable rock database for Mi, etc. An analysis tab is available as well, automatically plotting the major and minor principal stress based on the given parameters.

Create tunnel subsection from point (VIP)

In the tunnel designer it has become easier to create subsections, as users can define a subsection by right-clicking on a point and start the subsection from there. This speeds up drawing of, for example, an elephant’s foot or sidewall drift on your tunnel cross-section.

 Other features or improvements:

  • UBC3D-PLM model available as standard model in PLAXIS (VIP)
  • Experimental nurbssurface generation from a point cloud
  • Directly input the element dimension in the expert settings of the mesh menu
  • Soil layering based on Robertson interpretation for imported CPT borehole data (VIP)
  • Support for unlimited number of points for curves in Output (VIP)
  • Grouped clusters based on material assignment in Output Model explorer
  • Cross-sections made in Output now respond to visibility changes done in the model explorer
  • Time shown in Output plot title for calculations where a time component is defined
  • Force envelopes of plates, beams and embedded beams available in Output
  • Foot forces of embedded beams available in Output
  • Rotation and tilt available in Output for distance measurement tool
  • PyQtGraph added to Python distribution
  • Encryption of communication between PLAXIS and scripting facilities
  • Performance improvements in the scripting layer
  • PLAXIS 3D 2017 Viewer

Download PLAXIS 3D 2017.00

PLAXIS 3D VIP users can contact the sales department to prepare their license updates to PLAXIS 3D 2017.