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Simufact material database for Inconel 718 powder

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I have few questions about the Simufact material database for Inconel 718 powder, when looking into the flow curves all I could see is the data for the plastic region, I would like to know why the Simufact didn't consider the elastic region. Also in the mechanical properties what is the input for elastic modulus for this material because am not able to find it, did you consider infinite elastic modulus? if yes, could you please explain.
 
Kindly look in to the below plot I got from a simple compression test showing true stress and true strain for IN718 powder at 20C .
In718
Could you please explain why the Simufact database doesn't have any elastic region data.
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    Hello Vignesh,
     
    hard to tell. Any messages or warnings your get?
     
    One big main difference between rigid and deformable dies is, that rigid dies have a movement defined (not moving, press driven, spring controlled, free movement along a defined direction, ...) while deformable dies do not have this. Deformable dies always need some constrains to define which surface of them is not moving or moving as defined by the constrain.
     
    There are several possible constrains. I prefer to use rigid dies as constrains. Please take care to fill the contact table completely to define all needed contacts between workpiece and dies and between dies and dies.
     
    I hope this helps, if not I need a look at the model.
     
    Thanks,
     
    Christian
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  • 0
    Hello Vignesh,
     
    hard to tell. Any messages or warnings your get?
     
    One big main difference between rigid and deformable dies is, that rigid dies have a movement defined (not moving, press driven, spring controlled, free movement along a defined direction, ...) while deformable dies do not have this. Deformable dies always need some constrains to define which surface of them is not moving or moving as defined by the constrain.
     
    There are several possible constrains. I prefer to use rigid dies as constrains. Please take care to fill the contact table completely to define all needed contacts between workpiece and dies and between dies and dies.
     
    I hope this helps, if not I need a look at the model.
     
    Thanks,
     
    Christian
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