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Reply--Abaqus quasi-static induced numerical damping

Jiangping Xu's picture

The damping ratio, used in quasi-static problems, such as sheet forming, stamping, forging, is that role, b, shown in the following equation


For the problems mentioned above, the value of b is about 0.1.  if dynamic explicit method is employed, the simulation may encounters steady problem, while convergence problem for implicit method employed.  I think, you can search some articles on damping in sheet metal forming, then you will understand the effect of this damping ratio.

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