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bulk viscosity

use of ABAQUS Explicit - importance of *bulk viscosity

Hello there!

 I am fairly new to ABAQUS but I have been trying to model several experimental set-ups on cold-formed steel beams. I intend to obtain both the elastic buckling critical modes (*buckle analysis), as well as the load parameter corresponding to failure, which i first modelled through a NLGEOM analysis (*STEP, NLGEOM, INC=xxx/*STATIC, RIKS).

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