Error: Collapse Internal File has been corrupted


Question

I'm using the Standard Collapse to run a Ship Impact analysis, but the analysis stops with this error. Why is it happening? Please advise on the resolution.




Answer

The error code 67 (at the end of the error message) means there were enough loads in the file during import. Troubleshooting steps to be followed:

1. Check the supplement generation to make sure it has the same number of load conditions as the collapse analysis. 

2. Look at the collapse input file and note the names of the load conditions and combinations in the load sequence.

3. Next, remove all unused load conditions (manually or using the Load Condition Selection option) and create new SACS model files for the jacket and top side. You can also use the SeaState option to select load cases, convert load combinations to basic load cases, and create OCI files for the topside and the jacket.

4. Once you have these new model files, re-create the superelement and re-run the collapse analysis.

The error should be resolved by keeping only the load cases required for the collapse analysis.
 
Note: The error only happens in Standard Collapse, not Collapse Advanced.