Last updated 2 years ago
The CoulombFriction is a 1D viscous material that shall be used with for example element.
CoulombFriction
material CoulombFriction (1) (2) (3) # (1) int, unique material tag # (2) double, C # (3) double, alpha
The stress is constant as long as the velocity is not zero.
In order to avoid discontinuity, the sigmoid function is used.
The factor α\alphaα is used to control the steepness of the transition region.
Damper01