Sasa Galuf's Activities

get name of assigned material using Python

Sasa Galuf — Mon, 19 Sep 2022 10:21:26 GMT

I have a model with some plate element (e.g. tunnel lining). In dfiferent phases, different materials are assigned to this plate element. Using python, how could I determine, what material was assigned to plate element in a specified phase? I've tried the following command,

MaterialName = g_o.getresults(phasename, g_o.ResultTypes.Plate.Name, 'node')

Basically, I would like to collect internal forces in plate element, but only in phases, where specific materials were assigned.

plate properties (PLAXIS 2d vs PLAXIS 3D)

Faisal Ahmed — Tue, 20 Sep 2022 07:39:33 GMT

Hello,

I have a question about the plate properties in PLAXIS. In 2D, there is a specific input as "unit weight (w)" and in 3D, there is another specific unit weight as " unit weight (gamma)". I know how to get the unit weight for PLAXIS 3D but for 2D, I came to know the unit weight of the soil has to be deducted from the unit weight of the plate material. I could not find any good reference about why it has to be done like this in PLAXIS 2D and so I seek your help to help me resolve this confusion. Please help.

Thank you

resetting displacements of separate elements

Sasa Galuf — Thu, 23 Apr 2020 09:43:27 GMT

When activating plate elementes in a phase, that has some previous deformations, the recently activated plate elemets will take the deformations from the surrounding soil elements, which is incorrect, because at the moment of the installation, the structure should have (virtually) zero displacements. This is even more obvious in analyses with several plate elements activated at different stages (e.g. PLAXIS 2D Tutorial 07: Excavation of an NATM tunnel https://www.plaxis.com/support/tutorials/2d-tutorial-excavation-of-an-natm-tunnel/). The displacements of tunnel lining in this tutorial are incorrect, because they also contain the pre-deformations, that is the deformations, which occured before the lining was installed.

Do you have in your plan to implement some sort of setting, to reset displacements of individual elements only (similar to "Apply stregth reduction" checkbox in Safety analysis)?

Modelling tunnel pipe roof in Plaxis 2D

Sasa Galuf — Sat, 22 Oct 2022 06:51:15 GMT

Do you have any recommendations on how to model pipe roof above tunnel crown in Plaxis 2D analysis? I was thinking one option would be using fixed-end-anchors with a cautious/conservative estimate of anchor stiffness. Or maybe some other method, perhaps simpler and more robust?

www.google.com/search

Failed at phase install strut in Excavation model

Phu Nguyen — Mon, 19 Sep 2022 03:50:09 GMT

Dear Colleagues,

I have a simple excavation Plaxis model. When I set ymin boundary = -90m, phase 5: install strut failed but ymin = -80m, the model not failed. Can someone explain me this problem? Thank you!

python API boilerplate code

Sasa Galuf — Fri, 15 May 2020 07:25:01 GMT

I would like to access the python API using external application. In previous versions of Plaxis, i had to add the following boilerplate at the beginning:

import imp,sys
sys.path.append("C:\Program Files\Plaxis\PLAXIS 2D\python\Lib\site-packages")
plaxis_path = r'C:\Program Files\Plaxis\PLAXIS 2D\python\Lib\site-packages'
found_module = imp.find_module('plxscripting', [plaxis_path])
plxscripting = imp.load_module('plxscripting', *found_module)
from plxscripting.easy import *
localhostport0 = 10000
s_i, g_i = new_server('localhost', localhostport0, password='*PASSWORD*')

What is the boilercode for the Plaxis CE version?

Point rotation fixity in Plaxis 3D

Sasa Galuf — Mon, 11 May 2020 13:53:18 GMT

In Plaxis 2D, the rotation fixity of a point can be defined by using the Point_Displacement tool

However, in Plaxis 3D there is no option for rotation fixity. Can rotation fixity of a point be set in Plaxis 3D?

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Fri, 10 Apr 2020 00:37:11 GMT

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Plaxis 2D snap to crossing

Sasa Galuf — Fri, 10 Apr 2020 06:37:26 GMT

Hello.

In the Plaxis 2D v2019 one could move endpoint of line and it would snap to the crossing of two other lines - a green circle appers when hovering over crossing (left side of picture below). In Plaxis 2D v2020 I can only snap to one or other line, but not their crossing (right side of picture). Is this option no longer available?

Also, is it possible to set the option "Snap to grid" to be turned off by default when opening a project, since this is a feature that I rarely use.