FATDEF

Bulk Data Entry Defines elements or grids, and associated fatigue properties, for consideration in a fatigue analysis.

Format


(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
FATDEF	`ID`	`TOPSTR`

Optional continuation lines for selecting elements, or corresponding grids, and associated fatigue properties, using element sets (ELSET)


(2)	(3)	(4)	(5)	(6)	(7)	(8)
`ELSET`	`ELSID1`	`PFATID1`/ `PFATSPWID1`	`ELSID2`	`PFATID2`/ `PFATSPWID2`	`ELSID3`	`PFATID3`/ `PFATSPWID3`
	`ELSID4`	`PFATID4`/ `PFATSPWID4`	etc	etc	etc	etc
	etc	etc

Optional continuation lines for selecting elements and associated fatigue properties through referenced properties (PTYPE)


(2)	(3)	(4)	(5)	(6)	(7)	(8)
`PTYPE`	`PID1`	`PFATID1`/ `PFATSPWID1`	`PID2`	`PFATID2`/ `PFATSPWID2`	`PID3`	`PFATID3`/ `PFATSPWID3`
	`PID4`	`PFATID4`/ `PFATSPWID4`	etc	etc	etc	etc
	etc	etc

Optional continuation lines for seam weld fatigue analysis


(2)	(3)	(4)	(5)	(6)	(7)	(8)
FATSEAM	`FATSEAM ID1`	`PFATSMW ID1`	`FATSEAM ID2`	`PFATSMW ID2`		`PFATSMW ID3`
	`FATSEAM ID4`	`PFATSMW ID4`	etc	etc	etc	etc
	etc	etc				`FATSEAM ID3`

Optional continuation lines for excluding elements using element sets (ELSET)


(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
`XELSET`	`XELSID1`	`XELSID2`	`XELSID3`	`XELSID4`	`XELSID5`	`XELSID6`	`XELSID7`
	`XELSID8`	etc	etc	etc	etc	etc	etc
	etc	etc

Optional continuation lines for excluding individual elements


(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
`XELEM`	`XEID1`	`XEID2`	`XEID3`	`XEID4`	`XEID5`	`XEID6`	`XEID7`
	`XEID8`	etc	etc	etc	etc	etc	etc
	etc	etc

Optional continuation lines for excluding grids using grid sets (GSET)


(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
`XGSET`	`XGSID1`	`XGSID2`	`XGSID3`	`XGSID4`	`XGSID5`	`XGSID6`	`XGSID7`
	`XGSID8`	etc	etc	etc	etc	etc	etc
	etc	etc

Optional continuation lines for excluding individual grids


(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
`XGRID`	`XGID1`	`XGID2`	`XGID3`	`XGID4`	`XGID5`	`XGID6`	`XGID7`
	`XGID8`	etc	etc	etc	etc	etc	etc
	etc	etc

Optional continuation lines for solder fatigue analysis


(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
	`FATSDR`	`FATSDR ID`	`PFATSDR ID`

Definitions


Field	Contents	SI Unit Example
`ID`	Each FATDEF card must have a unique ID. FATDEF Subcase Information Entry may reference this ID. No default (Integer > 0)
`TOPSTR`	Top stress fraction. Elements with combined stress not in this top fraction of each MATFAT group will be screened out and have no results. This field is ignored in fatigue analysis on a transient subcase. Default = blank (100% will be used internally), (0.0 < Real ≤ 1.0)
`ELSET`	Indicates that a list of pairs of `ELSET` and PFAT/PFATSPW IDs will follow, defining elements, and their associated fatigue properties, for consideration in fatigue analyses where this FATDEF is selected.
`ELSID#`	Element set ID. Elements in this set will be considered in fatigue analyses where this FATDEF is selected. No default (Integer > 0)
`PFATID#`	Fatigue property ID. This is the identification number of a PFAT entry, which indicates the fatigue property used by the preceding elements defined by `ELSID#` or `PID#`.
PFATSPWID#	Fatigue property ID for spot weld fatigue analysis. This is the identification number of a PFATSPW entry, which indicates the fatigue property used by the preceding elements defined by `ELSID#` or `PID#`.
`PTYPE`	Indicates that a list of pairs of property IDs of type `PTYPE` and PFAT/PFATSPW IDs will follow; defining elements and their associated fatigue properties for consideration in fatigue analyses where this FATDEF is selected. 2
`PID#`	Property ID. This is the identification number of a property entry corresponding to the specified `PTYPE` field. Elements referencing any property with this ID will be considered in fatigue analyses where this FATDEF is selected. 3 No default (Integer > 0)
`FATSEAM`	Indicates that the list of pairs of `FATSEAM` ID's and `PFATSMW` ID's are to follow and these will be used for seam weld fatigue analysis.
FATSEAM ID#	References a FATSEAM Bulk Data Entry that contains parameters and property identification information for seam weld fatigue analysis.
PFATSMW ID#	Fatigue property ID for seam weld fatigue analysis. This is the identification number of a PFATSMW entry, which indicates the fatigue property used by the preceding elements defined by `ELSID#` or `PID#`.
`XELSET`	Indicates that IDs of elements sets excluded from fatigue analysis follow.
`XELSID#`	Element set ID. Elements in these sets will be excluded from fatigue analyses where this FATDEF is selected. No default (Integer > 0)
`XELEM`	Indicates that IDs of elements excluded from fatigue analysis follow.
`XEID#`	Element ID. These elements will be excluded from fatigue analyses where this FATDEF is selected. No default (Integer > 0)
`XGSET`	Indicates that IDs of grid sets excluded from fatigue analysis follow.
`XGSID#`	Grid set ID. Grids in these sets will be excluded from fatigue analyses where this FATDEF is selected. No default (Integer > 0)
`XGRID`	Indicates that IDs of Grids excluded from fatigue analysis follow.
`XGID#`	Grid ID. These Grids will be excluded from fatigue analyses where this FATDEF is selected. No default (Integer > 0)
`FATSDR`	Optional continuation line for solder fatigue analysis.
`FATSDR ID`	Identification number of a FATSDR Bulk Data Entry that defines a solder joint. No default (Integer > 0)
`PFATSDR ID`	Identification number of a PFATSDR Bulk Data Entry that defines fatigue properties for solder fatigue analysis. No default (Integer > 0)

Comments

At least one of the optional continuation lines ELSET or PROP must be present.
PTYPE can be set as one of PSHELL, PSOLID, PWELD, PBAR, PBARL, PBEAM, or PBEAML to represent that the corresponding property ID's (PID# fields) are to follow.
Note: That PWELD, PBAR, PBARL, PBEAM, or PBEAML references for PTYPE field are supported only for spot weld fatigue analysis. Additionally, for spot weld fatigue analysis, PFATSPWID# fields should reference corresponding PFATSPW entries.
The PID# field should reference the property entry of the same type as the corresponding PTYPE.
This card is represented as a load collector in HyperMesh.