How to set the damping coefficient of a crowd of powders
Asked by
Yufan Zhao
Hello everyone,
I have a problem in setting the damping coefficient of powders. Could any one teach me how to determine this parameter.
My simulation is setting a cloud of metal powders which are settled down on a steel platform by gravity and then the powders is moved by a metallic rake from one side horizontally. That is the powder delivery process in powder bed additive manufacturing.
I have defined the powder, platform and rake with respective material properties. But I have no idea about the appropriate value of damping coefficient of powders.
I appreciate any helps.
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- Bruno Chareyre
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