Why the result show "Failed to attached result" in RADIOSS
<?xml version="1.0" encoding="UTF-8"?>
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I found this problem many times. I am not sure that happen because of the boundary conditions or anything else.
And I imported model Optistruct file in Radioss solver, Is it ok or not?
Thank you for helping!
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When you are loading the solver deck in hyperview, uncheck the load result.
.rad is a solver input which doesn't contain any results that is the reason you are getting that error.
Thank you for your reply.
Now, I am understand .rad is not a result file but after running analysis that have only both of .rad files, follow this picture.
That's mean the program doesn't run, right?
Altair EmployeeYes, the program doesn't run ,
did u run analysis ?
Yes, the program doesn't run ,
did u run analysis ? 
Thank you for your reply.
Yes, I have run analysis already and I already use model checker, it doesn't has error anythings.
Is there any other problem in the program that is possible? @Pooja S
Best regards,
If the analysis ran without problems, the result should be available in the <modelname>.h3d file. We can also load the results WHILE simulation is running by opening <modelname>.A01 animation file.
<modelname>_000.rad is a starter file (containing loads, BCs, material, properties, mesh) and <modelname>_001.rad is an engine file (containing simulation controls).
Altair EmployeeHi
Download the ebook from the below location and try the tutorial mentioned in the book or from Altair hyper works help for better understanding
https://altairuniversity.com/free-ebooks-2/free-ebook-crash-analysis-with-radioss-a-study-guide/
When you are loading the solver deck in hyperview, uncheck the load result.
.rad is a solver input which doesn't contain any results that is the reason you are getting that error.