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GeoStudio | PLAXIS Wiki PLAXIS 2D CE V22.00.00 Release notes
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    PLAXIS 2D CE V22.00.00 Release notes

    New in PLAXIS 2D CONNECT Edition V22

    Release: January 2022


    PLAXIS 2D CONNECT Edition V22 (22.00.00.1733) contains the following improvements and updates compared to PLAXIS 2D CONNECT Edition V21.01:

    Compatibility notes: Due to the major changes in the material database and the unit system, PLAXIS 2D CONNECT Edition Version 22 will be installed alongside Version 21, instead of overwriting it. When opening PLAXIS 2D V21 projects with PLAXIS 2D V22, projects will automatically be saved as a converted copy with the _converted suffix and will require recalculation. When using non-SI-units, the mesh also needs to be regenerated.
    The PLAXIS 2D CONNECT Edition V21 projects will remain unchanged.
    Earlier versions of PLAXIS will not be able to open files saved in PLAXIS 2D V22.

    New features

    New rock model: N2PC-MCT
    For improved modelling of rock creep, we added the Mohr-Coulomb failure criterion to the N2PC-Salt model. This model is added as 'CreepRock_N2PC_MCT' to the user-defined soil model n2pc_salt64.dll
    Discontinuity elements
    This version introduces a new element type to model discrete fractures, faults or jointed rock.
    Major overhaul of the data structure of the material database
    Existing materials database has been replaced with a new material objects data structure, providing better command-line support, side-panel warnings and richer editing experience for material models.
    This change also means:
    • Required changes to material dataset object structure can make older commands or Python scripts incompatible
    • Legacy global material database files (*.matbd) are not compatible
    • PLAXIS Output can only read PLAXIS files calculated and saved in the current version
    • PLAXIS SoilTest *.vlc files are not supported
    • PLAXIS 2D Classic Converter is not compatible with this version
    Improved unit system
    Improved handling of units through a uniform unit system, maintaining consistent physical dimensions of the PLAXIS model following changes to the project units.
    Improved import and export of DXF and STEP files
    • Improved handling of project units for import and export of *.DXF and *.STEP files.
    • Added support for writing custom project units during export
    • The import window now offers a side-panel with warnings and access to an import log
    Upgraded Python environments
    Upgraded Python environments to Python 3.8.x with the purpose of fixing security vulnerabilities in included OpenSSL library.

    Fixed issues

    The following known issues have been fixed in this version:

    • Solved: [604677] PLAXIS LE importer incorrectly converts geometry when having comma as decimal symbol
    • Solved: [669296] Deconfinement feature might generate wrong stress distribution for dry conditions

    A large number of issues have been addressed, including:

    • [378022] Fixed an issue in PLAXIS Input that would trigger "Unbalanced calls to end batch rename mode"
    • [379043] Fixed an issue in the Output program when requesting the embedded beam's elastoplastic values for Np and Mp.
    • [485439] Improved access to Design Approach settings from the Material database
    • [513593] Fixed an issue for Output scripting where GUIDs for groups and phases were mixed.
    • [563369] Fixed an issue in the K0 procedure for the Jointed Rock model where the strength was also applied to the intact rock, which in some case led to plastic points in the rock mass
    • [569715] Fixed an issue with read-only parameters on the command line after just opening a PLAXIS file.
    • [580833] The pack project option incorrectly compressed files using the .zip compression. It is now restored to use the .7z compression methods for enhanced filesize reduction
    • [587755] Fixed an issue with inactive interfaces when the manually defined stiffness values Kn/Ks were used
    • [591762] Fixed an issue with PM4Sand (UDSM) undrained behaviour in free field elements near the surface
    • [680973] Fixed an issue that enables intergranular strain-concept again for the Hypoplastic model (UDSM)
    • [690050] Fixed an issue in PM4Silt (UDSM) when initializing the stress inside the elements
    • [700930] Fixed visualizations for state parameters of the NorSand model (UDSM)
    • [716979] Solved a problem in the Hoek-Brown constitutive model causing slow convergence while performing safety calculations. Additionally, the state of "Failure point" has been fixed as not accurate in some situations.
    • [762276] Fixed issue in the NorSand model that could cause numerical divergence with updating stiffness matrix for each step
    • [769866] Fixed an issue with NGI-ADP stress initialization for a soil polygon consisting of just one single element.

    Download links

    You can update to the latest version using the CONNECTION Client, or download the installer via Bentley System's Software downloads.

    • Update
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    • Micha van der Sloot Created by Bentley Colleague Micha van der Sloot
    • When: Thu, Aug 26 2021 11:44 AM
    • Stefanos Papavasileiou Last revision by Bentley Colleague Stefanos Papavasileiou
    • When: Fri, Feb 24 2023 9:05 AM
    • Revisions: 3
    • Comments: 0
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