I am currently working on a dynamic modelling project in PLAXIS where we are obtaining the lateral earth pressures on a gravity retaining wall.
The retaining wall is modelled as a linear elastic material.
To export the results, I have preselected nodes and stresspoints in the vicinity of the wall-backfill. I then draw a cross-section near the back of the wall and export the results for ~2000 stored steps to see the variation in earth pressure against time.
The result export ends up taking longer than the analysis itself. Each time-history requires roughly 3 hours of analysis whereas just generating the curves can take up to 12 hours.
Is there any way to speed up this process?
I believe that you have also created a service request so your query is being already handled but I will give a short answer here, too.
Huge projects with many steps, like dynamics, generate a massive amount of data. Note that a dynamic analysis is one of the most complex analysis you can run with PLAXIS applications.
In Output, these results are loaded from data files stored, which might require some time to read and load due to the size of the project.
I agree that 12 hours is a rather long time, however, it depends on how you extract the results.
Via the command line, I would advise you to use the getcurveresultspath command that can help you retrieve a list of the requested results for a specific curve point in a range of phases or steps. Please check our command reference for an example of this command and how to use it.
The command above will make the extraction of results faster as it does it in one go, compared to the getcurveresults command which does it per step.
Appreciate the response. Your support team suggested something similar. I will try and see.
Does PLAXIS publish a glossary of variables and syntax to call on different variables? Your support team suggested using ResultTypes.Interface.InterfaceEffectiveNormalStress.
I wasnt able to find "InterfaceEffectiveNormalStress" in PLAXIS help or tutorials, so I had no idea how to do this.
All commands and objects in Input and Output are documented under Help>Command reference:https://communities.bentley.com/products/geotech-analysis/w/plaxis-soilvision-wiki/45919/command-line-reference
For Python scripting, we also have a reference:https://communities.bentley.com/products/geotech-analysis/w/plaxis-soilvision-wiki/45447/scripting-reference-and-how-to-use-it