*CONTACT_ERODING_NODES_TO_SURFACE

LS-DYNA Input Interface KeywordDefine nodes to surface contact interface.

Format

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*CONTACT_ERODING_NODES_TO_SURFACE_{OPTION3}

If OPTION3 = ID, insert the following line

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`inter_ID`	`Title`

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`SSID`	`MSID`	`SSTYP`	`MSTYP`
`FS`	`FD`	`DC`				`Tstart`	`Tstop`
`SFS`	`SFM`	`SST`	`MST`	`SFTS`	`SFMT`	`FSF`
Blank card

Optional Card A

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`SOFT`

Definitions

Field	Contents	SI Unit Example
`OPTION3`	ID Include a contact identifier and title.
`inter_ID`	Contact interface identifier. (Integer)
`Title`	Contact interface title. (Character, maximum 70 characters)
`SSID`	Secondary set or part identifier. (Integer)
`MSID`	Main set or part identifier. (Integer)
`SSTYP`	Input secondary set type. = 0 Segment set ID = 1 Shell element set ID = 2 Part set ID = 3 Part ID = 4 Node set ID = 5 All parts (`SID` is ignored). = 6 Part set ID. All parts are included in the contact, except the one defined in the part set ID. = 7 Subset set ID (Integer)
`MSTYP`	Input main set type. = 0 Segment set ID = 1 Shell element set ID = 2 Part set ID = 3 Part ID = 5 All parts (`SID` is ignored). = 6 Part set ID. All parts are included in the contact, except the one defined in the part set ID. = 7 Subset set ID (Integer)
`FS`	Static friction coefficient. (Real)
`FD`	Dynamic friction coefficient. (Real)
`DC`	Exponential decay coefficient.	$[\frac{s}{m}]$
`Tstart`	Start time. (Real)	$[s]$
`Tstop`	Stop time. Default = 1E+30 (Real)	$[s]$
`SFS`	Secondary stiffness scale factor. (Real)
`SFM`	Main stiffness scale factor. (Real)
`SST`	Secondary maximum gap value. (Real)	$[m]$
`MST`	Main maximum gap value. (Real)	$[m]$
`SFTS`	Secondary contact gap scale. (Real)
`SFMT`	Main contact gap scale. (Real)
`FSF`	Coulomb friction coefficient scale factor
`SOFT`	Contact stiffness definition flag. = 0 Contact stiffness is the average of the main and secondary stiffness. > 0 Contact stiffness is the minimum of the main and secondary stiffness. (Integer)

Comments

This keyword maps to /INTER/TYPE25.