UNV reader block error" in OptiStruct OP2 file

srinivas rallabandi_21059 · 2025-06-19T01:47:58+00:00

There was an error rendering this rich post.

I am encountering an error when trying to run fatigue analysis using the OP2 file generated from OptiStruct. The fatigue solvers I have tried are Fe-safe and an in-house tool. The error message is as follows

2025-06-18 19:55:47 HyperWorks Information: UNV reader supports only block 55 and block 2414 for the results2025-06-18 19:55:48 HyperWorks Error: Failed to attach results.

I was able to run fatigue analysis using an OP2 file generated from Nastran without any issues. How can I resolve this error and successfully run the fatigue analysis with the OP2 file from OptiStruct?

Below is my request generating the files. I am running a global local model

Find more posts tagged with

HyperView

OptiStruct

Accepted answers

All comments

srinivas rallabandi_21059

I think the data blocks for nastran and optistruct writing op2 are not same.

srinivas rallabandi_21059

Is Global modal results can be called in submodel using op2 instead of H3D? using ASSIGN statement in Optistruct