Keyword type: model definition, material
With this option the surface behavior of a surface interaction can be
defined. The surface behavior is required for any contact analysis. Right now,
the contact pressure takes the form in Figure
81. The parameters and
define the kind of
contact.
is the contact pressure at zero distance,
is the distance from
the master surface at which the pressure is decreased to 1 % of
. The
behavior in between is exponential. A large value of
leads to soft
contact, a small value to hard contact.
First line:
Following line:
Example: *SURFACE BEHAVIOR 1.e-4,.1
defines a distance of length units at which the contact pressure is
.001 pressure units, whereas the contact pressure at loose contact is 0.1
pressure units.
Example files: contact1, contact2.