-
What do you think of the forum? We want to hear from you!
Hello Everyone! The Ansys Developer Forum has been in operation for some time now and we want to hear what you (non-Ansys users) think of it. If you have any feedback on how things could be developed further, areas you think could be improved and how useful the site has otherwise been for you and your company please please…
-
I signed up but I can't post because of a "Permission Problem", how can I fix this?
So I came here to post a question, but I logged in and now I can't post? I get this error Who do I need to talk to to get this fixed?
-
Welcome! Please Read Before Posting
Welcome to the Ansys Developer community! If you are using the developer tool packages with Ansys simulation tools then this is your community space. This community has been created to ask questions of your peers, exchange ideas, and converse about developer issues within an Ansys context. Here are some guidelines: Keep…
-
New search functionality for the Ansys dev portal
Hello to our forum and portal users! We are very excited to be on the verge of rolling out our new unified search for the Ansys Developer Portal and Forums. This search will bring together the documentation and articles from the dev portal and posts and information on the forum into a new single search. Over time we will…
-
A way to extract the modal participation factors in PyDPF
I am looking for a way to get the modal effective mass in all degrees of freedom from a modal analysis result set (rst, mode files etc). If I can get the participation factors, I can then calculate the modal effective mass. So either modal effective mass or participation factors works for me. I did see some hints online…
-
Using DPF in Mechanical ACT Wizard
Can I use DPF from Mechanical ACT wizards? Adding the standard import statements for DPF into a wizard script file raises an error. import mech_dpf No module named mech_dpfImportExceptionat Microsoft.Scripting.Runtime.LightExceptions.ThrowException(LightException lightEx)at…
-
PyDPF: remove contact elements
I have a PyDPF script and want to remove some contact types from the scoping, how do I do that ?
-
Plasticity Failure/Degradation in Explicit Dynamics when Reference Strain Rate is set to 0.001
I am simulating the impact behavior of high-strength material using Ansys Explicit Dynamics with the Johnson-Cook model. I have observed a strange numerical phenomenon: When Reference Strain Rate = 0.001s^-1: The simulation results show purely linear elastic behavior. Even when the stress exceeds 10,000 MPa, the Equivalent…
-
Matlab License Issue
Hi, I am running into an error trying to connect ZOS-API with MATLAB. I am told by my organization that we have a license for ZOS-API, but when I connect I am getting a license error. "MATLABZOSConnection Found OpticStudio at:c:\program files\ansys zemax opticstudio 2024 r1.03 Error using MATLABZOSConnection>HandleError…
-
VOF bubble collapse near wall – how to impose internal pressure (Fluent)?
I need to simulate this in fluent. Take a bubble of radius 1 mm with internal pressure as 3 kPa, while the outside liquid is at 1 bar pressure. This bubble is at a distance of 1.1 mm from a flat surface. Gravity acts vertically down. the bubble is of vapour. I used multiphase model with VOF. I created a Rectangular domain…
-
Load and use surface to create imprint surface
Dear support, I am sent here after posting my problem in github and the support there couldn't give me a solution. The issue that was closed was the following: https://github.com/ansys/pyfluent/issues/4884#issuecomment-3851877585 I am trying to create an imprint surface by using a similar method with TUI commands :…
-
Mechanical material menu blank
Hi, I've installed Ansys Student 2025 R2 on my personal machine. Everything works fine so far except for the materials menu in Mechanical. It remains blank. Do you have any ideas about the cause if the issue and how to resolve it? Cheers Henning
-
Hashin failure criteria from Python result
Hi, I'm doing a Static structural simulation in Workbench of an assembly containing metal and composite parts. The composite part is preprocessed in ACP. In the static structural system I apply a pre-meshed cyclic symmetry object, which is prohibiting me from inserting a Composite Failure Tool (version 2025R2). As a…
-
ANSYS Composite FEA Very Low FOS
I am trying to analyze a lofted airfoil with a spar inside of it. However I'm getting unusually low FOS around the bolt holes even when I add upwards of 10 plies. (Each ply being 0.3mm thick). I've used bonded condition on the spar faces to mimic an adhesive. The contact tool shows that all contacts are closed so that…
-
Welding Toolbox - ACT extension- App store. Contents of .wbex file missing. how to get?
https://developer.ansys.com/app/ansys-inc/welding-toolbox/2 this app documentation is good and i would like to use it, however the contents of the wbex file is missing. is there some location i can get this from?
-
How can the equivalent total strain be extracted with DPF?
I am not able to find an operator which works similarly to the EPTO in Ansys. Can someone suggests how to extract this quantity?
-
How to extract the OMEGA value that was used for a particular time point in an RST file.
Each time step in an RST file may have a different value of OMEGA that was used. I believe this information is available in the RST, is it possible to get the values using DPF
-
Using Attributes in ACT for fast DPF data retrieval
I wanted to share an example of how to store and retrieve data in attribute in ACT. When time_history=True in an ACT extension the Evaluate function is called for every timepoint. This can significantly slow things down, especially when using DPF. DPF is great at retrieving the data for all timepoints at once using a field…
-
Possible bug in dpf.operators.result.element_nodal_forces() in Mechanical scripting
I have a Mechanical script that is intended to duplicate nodal force summation like FSUM in APDL. In my test model, I have several contacts scoped using named selections for which I would like to compute the surface reaction forces and moment (about the global csys). To develop this using DPF, I have force reaction probes…
-
How to evaluate airflow uniformity across an entire porous region in ANSYS Discovery (not just on a
I am performing a CFD analysis in ANSYS Discovery (2026 R1) for an onion storage system. The setup consists of a cylindrical container with a central ventilation pipe having multiple nozzle outlets. The space between the pipe and the container wall is filled with onions, which I have modeled as a porous medium. The…
-
error in pymapdl plotting
trying to follow the PyMAPDL example: Overview of PyMAPDL | Ansys Innovation Courses (exact course: Overview of Ansys PyMAPDL — Lesson 1) have downloaded the jupyter notebook. I see an error with regard to plotting. local python: 3.11.8 (and 3.13.9) pyansys 2025.2.5 ansys.mapdl.core 0.70.2 (and 0.71.3) jupyterlab 4.5.1…
-
How to know what's the face indicator on stress result of file.rst
Hello y'll. I'm working on a python project that need to integrate file.rst from ansys just to use results. The wahala is that i'm looking data's but i don't know what give me what. I can get constraint, ids but there is no data to know what data give me nodal face to apply correct colloration
-
Creating Named Selections Based off Material Assignment
Hi! I am trying to find an updated script to create named selections based off material assignment. I have a lot of models to work through in various mechanicals within one workbench file, so having a script will speedup analysis quickly. I found this link:…
-
Importing Python libraries into Mechanical
Hi, I'm a uni student and I'm attempting to run an optimisation routine in Mechanical, where I compare modal analysis results from my FE model to experimental results, and tweak material parameters. To do this, I need to import libraries into the Mechanical scripting function, including some 3rd party libraries. Does the…
-
How to export nodal displacements from a modal analysis using DPF?
How to export nodal displacements from a modal analysis using DPF?
-
How can I use my own stress criterion to control the deletion and addition of elements during struct
How can I use my own stress criterion to control the deletion and addition of elements during structural topology optimization
-
How to extract Hot spot images for stress and strain in Ansys Mechanical using ACT
I am working on report automation and able to extract the figure currently working on extracting high stress and strain
-
Power noise aware clock jitter check: ClockFX vs Redhawk PJX?
Hi, Regarding tool for power noise aware clock jitter check, what is difference between ClockFX and Redhawk PJX? Or are they the same? Thanks.
-
DPF Mapping in Mechanical for Results
Example of DPF mapping by mapping text data onto a model with python results object. """Plot temperatue values from a text fileFormat:Node Number X Location (mm) Y Location (mm) Z Location (mm) Temperature (°C)1 62.5 -78.062 10. 22.222 62.5 -78.062 0. 22.3 62.5 -78.062 5.1359 22.13......This format can be edited and code…
-
Analysis.AnalysisSettings Deprecation
Accessing Analysis.AnalysisSettings reports the following warning Obsolete property 'AnalysisSettings': Property is obsolete, use IAnalysisSettings instead.
-
PyAnsys: How to enforce SpaceClaim 2025R2
By Default, It is using 2025R1, But I need to execute it using 2025R2. import ansys.geometry.core as pygeometryimport os# 1. Launch the modeler# You need a local installation of Ansys SpaceClaim or Discovery for this to workmodeler = pygeometry.launch_modeler()# 2. Define the path to your .scdocx file# Ensure you use the…
-
How to convert Bounded Contacts into Fixed Joints?
I have grouped Bonded contacts as follows: I want to use scripting to change their contact types into Fixed joints, how do I do that ?
-
How can i export stl for every single time step with python in Mechanical
Hello i have a question, how can i export a .stl from every single time step in my solution (e.g. Total Deformation) with python? I had searched for hours an i found no solution! This is what i mean: test_1.stl, test_2.stl for the whole timeline (e.g. 100 steps) Many Thanks!
-
Display order of multi-values in a discrete attribute immutable?
Hi, Is there any programmatic (or other) way of changing the order in which multi-values for a discrete attribute are displayed in the UI? I have tried a number of different ways through MI:Admin and MI:Toolbox to change the order in which the values are displayed, and it always reverts to the original order. This makes me…