/PROP/TYPE19 (PLY)

Block Format Keyword This property set is used to define the ply property set used in ply-based composite definition. It is used in combination with /PROP/STACK (/PROP/TYPE17) or /PROP/TYPE51 to create ply-based sandwich composite properties.

Format

(1)	(2)	(4)	(6)	(7)	(8)	(9)
/PROP/TYPE19/`prop_ID`/`unit_ID` or /PROP/PLY/`prop_ID`/`unit_ID`
`prop_title`
`mat_ID`	`t`	$Δ ϕ$	`grsh4n_ID`	`grsh3n_ID`	`Npt_ply`	$α_{1}$

Optional:

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
`drape_ID`	`def_orth`

Definitions

Field	Contents	SI Unit Example
`prop_ID`	Property identifier (Integer, maximum 10 digits)
`unit_ID`	Unit Identifier (Integer, maximum 10 digits)
`prop_title`	Property title (Character, maximum 100 characters)
`mat_ID`	Material identifier for ply (Integer)
`t`	Thickness of ply (Real)	$[m]$
$Δ ϕ$	Incremental angle for ply. 4 (Real)	$[\deg]$
`grsh4n_ID`	Shell 4-nodes group identifier connected to ply. 2 (Integer)
`grsh3n_ID`	Shell 3-nodes group identifier connected to ply. (Integer)
`Npt_ply`	Number of integration points through ply thickness with, `Npt_ply`=1, for /PROP/TYPE17 (STACK). 1 ≤ `Npt_ply`≤10, for /PROP/TYPE51. = 1 (Default) (Integer)
$α_{1}$	Angle between first and second material direction for ply `i`. Default = 90.0 (Real)	$[\deg]$
`drape_ID`	Drape identification number. 3 (Integer)
`def_orth`	The orthotropy angle. = 1 The orthotropy angle is calculated using the angle, $ϕ_{s}$ , defined in /SHELL and /SH3N. = 2 (Default) The orthotropy angle is calculated using the skew and rotation defined in /PROP/STACK option.

Example

#RADIOSS STARTER
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/UNIT/2
unit for prop
#              MUNIT               LUNIT               TUNIT
                  kg                  mm                  ms
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/PROP/TYPE19/11/2
PROP number 11
# mat_ID_i                   t           delta_phi id_grsh4n id_grsh3n   Npt_ply                 A_i
         1                  .5                  45         0         0         0                   0
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
#enddata
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|

Comments

This ply property is used in combination with /PROP/TYPE17 (STACK) (/PROP/TYPE17) or /PROP/TYPE51 to create ply-based sandwich composite properties. The compatibility to material law of this option is depend on its combination of /PROP/TYPE17 (STACK) and /PROP/TYPE51.
If both grsh4n_ID =0 and grsh3n_ID = 0, all elements in the part that reference this property belong to the ply.
The orthotropy angle in ply:
- Orthotropy angle defined without def_orth and drape_ID in optional line
  The angle for ply i (in /PROP/STACK):(1)
  $ϕ = ϕ_{i} + Δ ϕ$
  
  Where,
  
  $ϕ_{i}$
  
  Defined in the /PROP/STACK
- Orthotropy angle defined with def_orth and drape_ID in optional line
  - If def_orth = 2, the angle between the reference direction and the first direction of orthotropy is:(2)
    $ϕ = ϕ_{i} + Δ ϕ + θ_{d r a p e}$
    
    Where,
    
    $θ_{d r a p e}$
    
    Angle increment defined in the drape option drape_ID (if any)
    
    $ϕ_{i}$
    
    Defined in the /PROP/STACK for the ply.
  - If def_orth = 1, the angle between the shell skew and the first direction of orthotropy is:
    $ϕ = ϕ_{s} + Δ ϕ + θ_{d r a p e}$
    
    Where,
    
    $θ_{d r a p e}$
    
    Angle increment defined in the drape option drape_ID (if any)
    
    $ϕ_{i}$
    
    Defined in the shell (/SHELL or /SH3N).
    
    If def_orth = 1, Iskew, V_X, V_Y, and V_Z from the /PROP/STACK and /PROP/TYPE51 input are ignored.
If drape_ID is defined in optional line, the angle of each element defined in the drape is incremented by /DRAPE, $θ_{d r a p e}$
and the thickness is modified by the ply thinning factor /DRAPE, Thinning.