/INISPRI/FULL

Block Format Keyword Describes the initial state for spring elements. All values defined in this card will be applied at the beginning on the computation.

Format

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
/INISPRI/FULL/`unit_ID`
`spring_ID`	`prop_type`	`nvars`

If prop_type = 4:

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
`F`_X		`D`_X		`FEP`_X		`DPL`_X+		`DPL`_X-
`L`_X		`EI`

If prop_type = 12:

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
`F`_X		`D`_X		`FEP`_X		`DPL`_X+		`DPL`_X-
`L`_X		`EI`		`DFS`

If prop_type = 26:

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
`F`_X		`D`_X		`FEP`_X
`L`_X		`EI`		`DV`

If prop_type = 8, 13, 25:

(1)	(3)	(5)	(7)	(9)
`F`_X	`D`_X	`FEP`_X	`DPL`_X+	`DPL`_X-
`F`_Y	`D`_Y	`FEP`_Y	`DPL`_Y+	`DPL`_Y-
`F`_Z	`D`_Z	`FEP`_Z	`DPL`_Z+	`DPL`_Z-
`M`_X	`R`_X	`MEP`_X	`RPL`_X+	`RPL`_X-
`M`_Y	`R`_Y	`MEP`_Y	`RPL`_Y+	`RPL`_Y-
`M`_Z	`R`_Z	`MEP`_Z	`RPL`_Z+	`RPL`_Z-
`L`_X	`L`_Y	`L`_Z	`EI`	`ED`_X
`ED`_Y	`ED`_Z	`ER`_X	`ER`_Y	`ER`_Z

If prop_type = 29, 30, 31, 32, 33, 35, 36, 44, 45, 46:

(1)	(3)	(5)	(9)
`F`_X	`D`_X
`F`_Y	`D`_Y
`F`_Z	`D`_Z
`M`_X	`R`_X
`M`_Y	`R`_Y
`M`_Z	`R`_Z
`EI`
`V`₁	`V`₂	`VR`₃	`Vnvars`

Definitions

Field	Contents	SI Unit Example
`unit_ID`	Optional unit identifier. (Integer, maximum 10 digits)
`spring_ID`	Element identifier. (Integer, maximum 10 digits)
`prop_type`	Property set. 2 (Integer, maximum 10 digits)
`nvars`	Number of user element variables . (Integer, maximum 10 digits)
`F`_X	Spring element force along X direction. (Real)	$[N]$
`F`_Y	Spring element force along Y direction. (Real)	$[N]$
`F`_Z	Spring element force along Z direction. (Real)	$[N]$
`M`_X	Spring element moment around X direction. (Real)	$[Nm]$
`M`_Y	Spring element moment around Y direction. (Real)	$[Nm]$
`M`_Z	Spring element moment around Z direction. (Real)	$[Nm]$
`D`_X	Spring element elongation along X direction. (Real)	$[m]$
`D`_Y	Spring element elongation along Y direction. (Real)	$[m]$
`D`_Z	Spring element elongation along Z direction. (Real)	$[m]$
`R`_X	Spring element rotation around X direction. (Real)	$[rad]$
`R`_Y	Spring element rotation around Y direction. (Real)	$[rad]$
`R`_Z	Spring element rotation around Z direction. (Real)	$[rad]$
`FEP`_X	Spring elastic-plastic force along X direction. (Real)	$[N]$
`FEP`_Y	Spring elastic-plastic force along Y direction. (Real)	$[N]$
`FEP`_Z	Spring elastic-plastic force along Z direction. (Real)	$[N]$
`MEP`_X	Spring elastic-plastic moment around X direction. (Real)	$[Nm]$
`MEP`_Y	Spring elastic-plastic moment around Y direction. (Real)	$[Nm]$
`MEP`_Z	Spring elastic-plastic moment around Z direction. (Real)	$[Nm]$
`DPL`_X+	Max displacement in positive X direction. (Real)	$[m]$
`DPL`_Y+	Max displacement in positive Y direction. (Real)	$[m]$
`DPL`_Z+	Max displacement in positive Z direction. (Real)	$[m]$
`RPL`_X+	Max rotation in positive X direction. (Real)	$[m]$
`RPL`_Y+	Max rotation in positive Y direction. (Real)	$[m]$
`RPL`_Z+	Max rotation in positive Z direction. (Real)	$[m]$
`DPL`_X+	Max displacement in negative X direction. (Real)	$[m]$
`DPL`_Y+	Max displacement in negative Y direction. (Real)	$[m]$
`DPL`_Z+	Max displacement in negative Z direction. (Real)	$[m]$
`RPL`_X+	Max rotation in negative X direction. (Real)	$[rad]$
`RPL`_Y+	Max rotation in negative Y direction. (Real)	$[rad]$
`RPL`_Z+	Max rotation in negative Z direction. (Real)	$[rad]$
`L`_X	Spring length along X direction. (Real)	$[m]$
`L`_Y	Spring length along Y direction. (Real)	$[m]$
`L`_Z	Spring length along Z direction. (Real)	$[m]$
`ED`_X	Deformation energy positive X direction. (Real)	$[J]$
`ED`_Y	Deformation energy positive Y direction. (Real)	$[J]$
`ED`_Z	Deformation energy positive Z direction. (Real)	$[J]$
`ER`_X	Rotation energy around X direction. (Real)	$[J]$
`ER`_Y	Rotation energy around Y direction. (Real)	$[J]$
`ER`_Z	Rotation energy around Z direction. (Real)	$[J]$
`DFS`	Relative force between pulley branches. 2 (Real)	$[N]$
`DV`	Spring velocity filtering. 3 (Real)	$[\frac{m}{s}]$
`EI`	Total internal energy. (Real)	$[J]$
`VR`₁	1^st user variable value. (Real)
`VR`₂	2^nd user variable value. (Real)
`VR`₃	3^rd user variable value. (Real)
`Vnvars`	`nvars`^th user variable value. 4 (Real)

Comments

The initial state for spring may be defined by more than one block (for the same spring type only).
The relative force between pulley branches, DFS, is available only for spring property /PROP/TYPE12 (SPR_PUL).
Spring velocity filtering, DV, is available only for spring property TYPE26. It is based on strain rate filtering factor (ALPHA – see /PROP/TYPE26 (SPR_TAB)).
The nvars is the number of the first user variables to be initialized for a spring. It must be less or equal to the total number of internal variables used in a user type law (NUVAR).