July 24, 2023 at 12:26 pmChandra Sekhar NarraSubscriber
Hello Group members,
I had performed creep analysis, for the Norton's creep law. I got the result without any errors.
I have a question, is there any method to validate this equivalent creep strain?
How to validate the creep from Ansys?
July 25, 2023 at 2:29 pmJohn DoyleAnsys Employee
Usually the creep coefficients are derived (via curve fitting) from emperical data. Do you have any emperical data that you can try to echo back in an FEA simulation? Or perhaps there is a whitepaper or other publication that did this work already that you could try to replicate.
July 26, 2023 at 7:18 amChandra Sekhar NarraSubscriber
Thank you for your answer. I am trying to replicate one publication by using the coefficients they mentioned in the paper.
July 26, 2023 at 4:14 pmJohn DoyleAnsys Employee
Ok great. It should work, but you have to make sure it is an apples-to-applies comparison in all the details (element technology, mesh, solver specifications, loads and BCs.,...etc).
July 27, 2023 at 6:33 amChandra Sekhar NarraSubscriber
Yeah, it is working. I can see that the results in the paper and my simulation results look almost similar.
July 26, 2023 at 4:18 pmJohn DoyleAnsys Employee
Also, if the paper is referring to an ABAQUS simulation, take care to make sure that the creep coefficients corrolate to same exact expression. In other words 'C1', in Ansys, does not always corrolate to 'C1', in ABAQUS. Check the mathematical expressions carefully.
July 27, 2023 at 6:36 amChandra Sekhar NarraSubscriber
Actually, the paper refers to ANSYS only, they mentioned it clearly. Also, they mentioned the Norton Creep equation too.
The expression is correct as I compare it in ANSYS documentation.
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