1 Reply Latest reply on Sep 21, 2015 10:43 AM by Siavash Khajehhasani

    Static studies used in fatigue study are being rerun even though results are valid

    Aaron Gradeen

      Hi All,

      I'm performing a fatigue study which uses multiple static studies under the "find cycle peaks" options to estimate component life and damage for 2 million cycles. Each static study takes about an hour to run. The four static studies I have created are all set to save the FEA results to a subfolder which is contained where the assembly is saved. All studies run successfully with no warnings. I make no changes to the assembly model. I close the assembly and then reopen it and the yellow triangle with the exclamation mark icon appears beside the study tab at the bottom corner of the screen indicating that the results are invalid although absolutely nothing has been changed. 

      When I right click on the study and hit the "What's Wrong" button, I get this:

      and the results are not greyed out so they're still there


      This means that I have to rerun each static study when I want to make minor changes to the fatigue study and rerun that. This is a huge waste of time! I have never had this issue before. Has anyone else run into this same problem?


        • Re: Static studies used in fatigue study are being rerun even though results are valid
          Siavash Khajehhasani

          This issue could be associated with corrupt materials.


          Please try the following workaround:


          1. Copy and paste the material into a new custom material library (.sldmat).

          2. In the material dialog, change the 'Default failure criterion' drop down menu option to 'Unknown', then Save the material

          3. Reapply the material to each appropriate component in each study, directly through the Apply/Edit Material command in the Simulation Study Tree (not by allowing the material to carry over from SOLIDWORKS).


          Please let me know if it helps.


          - Siavash