Keyword type: model definition
This option is used to indicate the start of a surface interaction definition. A surface interaction data block is defined by the options between a *SURFACE INTERACTION line and either another *SURFACE INTERACTION line or a keyword line that does not define surface interaction properties. All surface interaction options within a data block will be assumed to define the same surface interaction. If a property is defined more than once for a surface interaction, the last definition is used. There is one required parameter, NAME, defining the name of the surface interaction with which it can be referenced in surface interaction property options (e.g. *SURFACE BEHAVIOR). The name can contain up to 80 characters.
Surface interaction data requests outside the defined ranges are extrapolated in a constant way. Be aware that this occasionally occurs due to rounding errors.
First line:
Example: *SURFACE INTERACTION,NAME=SI1
starts a material block with name SI1.
Example files: contact1, contact2.