Right-click the Solution cell in the project schematic and select "Clear Generated Data" before trying to reopen Mechanical. 5. Advanced Fixes
Remember, while every crash is an unwelcome interruption, it's also an opportunity to make your system more robust and reliable. By understanding the tools and techniques outlined in this guide, you'll be better equipped to handle future issues, minimizing downtime and keeping your simulations moving forward.
If the default scratch directory is full, restricted, or on a slow network drive, the solver will fail. Open Workbench. Go to .
: Missing or corrupted Microsoft .NET Framework or Visual C++ Redistributable packages can prevent ansyswbu.exe from executing standard instructions, leading to an immediate shutdown. Diagnostic and Resolution Strategy Right-click the Solution cell in the project schematic
a general crash notification in ANSYS Workbench, typically indicating that the Mechanical application has failed . The "diagnostic file" is a memory dump (
Based on similar error reports, the following are potential causes of this issue:
The following steps are organized from simple checks to more advanced troubleshooting. Start with the first step and proceed until the issue is resolved. By understanding the tools and techniques outlined in
When you encounter this error, start with these tried-and-true solutions, progressing from simple to more complex.
Navigate to your ANSYS installation folder and look for the prereq folder. Re-run the installers for Microsoft Visual C++ and .NET . Additionally, you can run the AnsConfigWorkbench.exe utility found in the installation directory to re-register the app's components. Summary Checklist Rename the %AppData%\Ansys\vXXX folder. Update GPU drivers to the latest version. Clear space on your "Scratch" drive. Disable Antivirus temporarily to test.
With this information, I can provide a more tailored solution for your system setup. Share public link : Press Win + R
| Symptom / Exception | Likely cause | Fix | |-------------------------------|----------------------------------------|----------------------------------------------------------------------| | ACCESS_VIOLATION | Graphics driver / corrupted memory | Update GPU driver, disable "Use GPU acceleration" in Tools → Options | | Fatal error in mesher | Poor geometry / mesh settings | Simplify geometry, change meshing method to Tetrahedrons | | ansyswbu.exe crashes on open| Corrupted Workbench config | Delete %APPDATA%\Ansys\v2xx\WB.xml | | Crash during solving (Mechanical APDL) | Not enough RAM / disk space | Increase pagefile, close other apps, reduce mesh size | | Stack overflow | Recursive loops in commands / large model | Add *go,start or increase stack size via bcsoption |
If the quick fixes don't work, the next step is to investigate your system's health:
Accumulated cache and corrupted user preference files can cause the Workbench GUI to crash during startup or project loading.
: Press Win + R , type %TEMP% , and hit enter. Find and delete or rename the .ansys directory if present. Relaunch : Open Workbench and try loading your model again. 2. Cleanse and Standardize File Directories
: Look for .dmp (dump) files or .log files generated at the exact time of the crash.