/TH/INTER

Block Format Keyword Describes the time history for interfaces.

Format

Field	Contents	SI Unit Example
`thgroup_ID`	`TH` group identifier (Integer, maximum 10 digits)
`thgroup_name`	`TH` group name (Character, maximum 100 characters)
`var_ID`₁, ...`n`	Variables saved for `TH` (see table below) (Character, maximum 8 characters)
`Obj_ID`₁, ...`n`	Identifiers of the objects to be saved (Integer)

Keyword	Object Saved	Variables
`INTER`	Interface	`FNX`, `FNY`, `FNZ`, `FTX`, `FTY`, `FTZ`, and `SFW` (only Interface types 14 and 15) Following variables are only for interface types 7, 10 and their sub interfaces (/INTER/SUB): `\|FNX\|`, `\|FNY\|`, `\|FNZ\|`, `\|\|FN\|\|`, \|`FX\|`, `\|FY\|`, `\|FZ\|`, `\|\|F\|\|`, `MX`, `MY`, `MZ` `QFRIC` is available for interface types 7 and 21

Keyword

Object Saved

Variables

INTER

Interface

FNX, FNY, FNZ, FTX, FTY, FTZ, and SFW (only Interface types 14 and 15)

Following variables are only for interface types 7, 10 and their sub interfaces (/INTER/SUB):

|FNX|, |FNY|, |FNZ|, ||FN||, |FX|, |FY|, |FZ|, ||F||, MX, MY, MZ

QFRIC is available for interface types 7 and 21

Keyword	Variable Group	Saved TH Variables
`INTER`	`DEF` `FN` `FT` `\|FN\|` `\|F\|` `Qfric`	`FNX`, `FNY`, `FNZ`, `FTX`, `FTY`, `FTZ` `FNX`, `FNY`, `FNZ` `FTX`, `FTY`, `FTZ` `\|FNX\|`, `\|FNY\|`, `\|FNZ\|`, `\|\|FN\|\|` `\|FX\|`, `\|FY\|`, `\|FZ\|`, `\|\|F\|\|` `QFRIC`

Keyword

Variable Group

Saved TH Variables

INTER

DEF

FN

FT

|FN|

|F|

Qfric

FNX, FNY, FNZ, FTX, FTY, FTZ

FNX, FNY, FNZ

FTX, FTY, FTZ

|FNX|, |FNY|, |FNZ|, ||FN||

|FX|, |FY|, |FZ|, ||F||

QFRIC

SFW is the work of forces along the interface. For the moment, it is only available for interfaces type 14 and 15.
FNX: normal force in direction X
FNY: normal force in direction Y
FNZ: normal force in direction Z
FTX: tangent force in direction X
FTY: tangent force in direction Y
FTZ: tangent force in direction Z
|FNX| absolute value of normal force of the X-component of the contact force (1)
$\sum | FNX (S, m) |$

$FNX (S, m)$ is the X-component of normal contact force applied to the master segment $m$ due to slave node $S$
|FNY|: absolute value of normal force of the Y-component of the contact force
|FNZ|: absolute value of normal force of the Z-component of the contact force
|FX|: absolute value of the X-component of contact force(2)
$\sum | FX (S, m) |$

$FX (S, m)$ is the X-component of normal contact force applied to the master segment $m$ due to slave node $S$
|FY|: absolute value of the Y-component of contact force
|FZ|: absolute value of the Z-component of contact force
MX: moment around X-axis of global system
MY: moment around Y-axis of global system
MZ: moment around Z-axis of global system
QFRIC: heat which converted from friction energy

Available names are listed in the two tables above.
In the first table, TH-variables are listed. If a TH-variable is requested, this variable is written.

In the second table, other variable groups are listed. If a variable group is requested, all the associated TH-variables are written at once.
Energy created by interface friction is included in the global contact energy output.