2021

2021

*CONTACT_AUTOMATIC_SINGLE_SURFACE

LS-DYNA Input Interface KeywordDefine automatic single contact interface between elements.

Format

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)
*CONTACT_AUTOMATIC_SINGLE_SURFACE_{OPTION3}

If OPTION3 = ID, insert the following line.

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)
`inter_ID`	`Title`

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)
`SSID`		`SSTYP`
`FS`	`FD`	`DC`				`Tstart`	`Tstop`
`SFS`		`SST`		`SFTS`		`FSF`

Definition

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`	Set or part identifier (Integer)
`SSTYP`	Input 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)	$[s]$
`SST`	Stiffness scale factor (Real)
`SFS`	Maximum gap value (Real)	$[m]$
`SFTS`	Contact gap scale (Real)
`FSF`	Coulomb friction coefficient scale factor

Comments

This keyword maps to /INTER/TYPE25.