ABAQUS Keywords Reference Manual  

*BULK VISCOSITY
Modify bulk viscosity parameters.

This option is used to redefine bulk viscosity parameters in a model.

Product: ABAQUS/Explicit  

Type: History data

Level: Step  

Reference:
There are no parameters associated with this option.

Data line to define the bulk viscosity parameters: 

First (and only) line:

  1. Linear bulk viscosity parameter, . If the *BULK VISCOSITY option is omitted or is specified without the data line, the default value is 0.06. If the data line is given and the value of is omitted, the default value is 0.0.

  2. Quadratic bulk viscosity parameter, . If the *BULK VISCOSITY option is omitted or is specified without the data line, the default value is 1.2. If the data line is given and the value of is omitted, the default value is 0.0.