General Mechanical

General Mechanical

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Combining Regularized damage with creep for 3D simulations

    • Aritra Chakraborty
      Subscriber

      Hi,

      I see that in ANSYS/2023 there is a new damage formulation (Regularized damage) which I want to use with a (Norton) creep power law. But when I look at the element type supported I don't see SOLID185/186. Does that mean I cannot use this generalized damage model for 3D damage calculations ?

       

      It would be really great if there's a way I can use such damage model for 3D creep-fatigue simulations (I am interested in metal alloys and not concrete type materials).

       

      Thanks,

      Aritra

    • Sahil Sura
      Ansys Employee

      Hello Aritra,
      Please check the following resource which helps with a list of element types that support various material models-
      Chapter 4: Element Support for Material Models (ansys.com)

       

      Hope this helps!

      Thanks,

      Sahil

      https://forum.ansys.com/forums/topic/how-to-access-the-ansys-online-help/

      https://forum.ansys.com/forums/topic/guidelines-for-posting-on-ansys-learning-forum/#latest

    • Aritra Chakraborty
      Subscriber

      Hi Sahil,

       

      Thank you so much! I see that CPT215 is a 3D 8 node element that supports Regularized damage. Could you please help me how to mesh with such elements from workbench? I have a cube but that is currently having Solid185. And based on the list, it seems I cannot use creep for such materials and have to use some of the hardening law.

       

      I am trying to model a creep simulation such that I (at least) get the on-set of tertiary creep. Is that at all possible in ANSYS? I have done that before by combining Power law creep (for secondary creep) and Regularized/Kachanov-Rabonov damage law, but in open source codes.

       

      Thanks,

      Aritra

       

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