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[UPDATED] Most issues are now solved in PLAXIS 2D CONNECT Edition V22 Update 1 and PLAXIS 3D CONNECT Edition V22 Update 1 (released May 2022). Please refer to the bullet list below for more information.
With the introduction of the uniform unit system in PLAXIS CONNECT Edition V22.00, PLAXIS is now internally using a specific set of units (internal storage unit system) regardless of the project units selected in the project (presentation unit system). This allows the calculation to handle project data in the same way regardless of the project units selected, thus ensuring consistency. Therefore, the project units are only used by PLAXIS Input and Output programs to display the input data and computed results.
In PLAXIS 2D/3D CONNECT Edition V22.00 an issue was identified regarding the displayed values and concerning units of a limited set of Output results. This occurs when using project units that are different from the specific set of units (internal storage unit system) PLAXIS considers.
Results included in soil/structure plots, such as the deformations, stresses, strains, pore pressures and forces remain correct regardless of the project units selected.
The internal storage unit system PLAXIS uses for calculations is the following:
For all other unit combinations, even though the calculation results are correctly computed, the values displayed in PLAXIS Output could be incorrect for the few cases explained below, which can lead to an incorrect interpretation of the results.
We have seen this issue occurring in the following cases (note that the relevant unit that causes the issue is added in parentheses):
Most issues are now solved in PLAXIS 2D CONNECT Edition V22 Update 1 and PLAXIS 3D CONNECT Edition V22 Update 1 (released May 2022). Please refer to the bullet list above for more information.
For older versions and/or unresolved issues, users are advised to switch the project units to the following recommended units (internal storage unit system) shown below and reopen Output to view the results. Please note that it is not required to re-calculate the project.
Any saved cross section curves, reports, or saved views are required to be re-created. This will ensure that the results and the corresponding units are correct.
To change the project units, follow the steps below:
Figure 5. Project properties button in the toolbar
Currently, we are working on fixing the remaining few items for this error for the next PLAXIS release.