/TH/INTER

Block Format Keyword

/TH/INTER - Time History - Interfaces

Description

Describes the time history for interfaces.

Format

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
/TH/INTER/thgroup_ID
thgroup_name
var_ID1	var_ID2	var_ID3	var_ID4	var_ID5	var_ID6	var_ID7	var_ID8	var_ID9	var_ID10
Obj_ID1	Obj_ID2	Obj_ID3	Obj_ID4	Obj_ID5	Obj_ID6	Obj_ID7	Obj_ID8	Obj_ID9	Obj_ID10

Field	Contents
thgroup_ID	TH group identifier (Integer, maximum 10 digits)
thgroup_name	TH group name (Character, maximum 100 characters)
var_ID1, ...n	Variables saved for TH (see table below) (Character, maximum 8 characters)
Obj_ID1, ...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

Variable Group

Saved TH Variables

INTER

DEF

|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.

•	Interface friction is taken into account in contact energy computation.

•	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\| represents S\|FNX(S,m)\|

S is the slave node of the interface

m is the master segment of the interface

FNX (S,m) is the X-component of normal contact force applied to the master segment m due to slave node S.

•	\|FX\| represents S\|FX(S,m)\|

S is the slave node of the interface

m is the master segment of the interface

FX (S,m) is the X-component of normal contact force applied to the master segment m due to slave node S.

•	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

1.	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.