PCOMPLS
Bulk Data Entry Defines global ply-based composite properties for continuum shell composites.
Format - Implicit
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
---|---|---|---|---|---|---|---|---|---|
PCOMPLS | PID | CORDM | SB | LAYERWISE | |||||
C8 | INT8 | ||||||||
ID1 | MID1 | T1 | THETA1 | ||||||
ID2 | MID2 | T2 | THETA2 |
Format - Explicit
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
---|---|---|---|---|---|---|---|---|---|
PCOMPLS | PID | CORDM | SB | LAYERWISE | |||||
C8 | INT8 | ||||||||
ID1 | MID1 | T1 | THETA1 | ||||||
ID2 | MID2 | T2 | THETA2 | ||||||
EXPLICIT | NIP |
Example
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
---|---|---|---|---|---|---|---|---|---|
PCOMPLS | 100 | ||||||||
C8 | ASTN | ||||||||
120 | 1 | 0.9 | 45.0 | ||||||
121 | 2 | 0.6 | 90.0 |
Definitions
Field | Contents | SI Unit Example |
---|---|---|
PID | Unique composite
property identification number. No default (Integer > 0) |
|
CORDM | Identification number
of the material coordinate system. Default = 0 (Integer) |
|
SB | Shear stress limit of
bonding material (interlaminar shear stress limit). (Real > 0.0) |
|
LAYERWISE | Defines lamination
theory for heat transfer.
|
|
C8 | Flag indicating that the subsequent field applies to referenced CHEXA and CPENTA solid elements. | |
INT8 | Integration type.
|
|
IDi | Global Ply ID. No default (Integer > 0) |
|
MIDi | Material ID for the
ply defined via the previous IDi field.
Currently MAT1, MAT9,
MAT9ORT, and MATUSR
materials are supported. No default (Integer > 0) |
|
Ti | Defines the
user-defined ply thickness of the ply specified via the
IDi field. 6 No default (Real > 0.0) |
|
THETAi | Orientation angle of
the ply within the ply plane. 4
5 Default = 0.0 (Real) |
|
EXPLICIT | Flag indicating that parameters for Explicit Dynamic Analysis are to follow. | |
NIP | Number of through
thickness integration points. Default = 3 (1 ≤ Integer ≤ 10) |
Comments
- The global Ply ID should be unique with respect to other ply's on this PCOMPLS entry.
- The PCOMPLS entry is only supported for first order CHEXA and CPENTA elements.
- The Global Ply IDs uniquely identify ply's across all PCOMPG and PCOMPLS entries.
- The thickness direction of the composite element by default starts from face G1-G2-G3-G4 to face G5-G6-G7-G8 of the solid element. Ply numbering also follows this thickness direction. This is used to only determine the direction of the local Z axis of the plies. The local Z-axis of each ply is perpendicular to the ply plane and aligned to the thickness direction. The X-axis of the coordinate system defined via CORDM (basic system, if blank) is projected onto the ply plane to determine the local X axis for the ply. The local Y-axis is then determined by the cross-product of the local X and Z axes.
- The orientation angle is measured in the positive counter clockwise direction from this projected X-axis about the local Z axis of the ply.
- The actual ply thicknesses depend on
the actual total geometric thickness of the solid element:Where,
- Actual thickness of the Ply “I”
- Actual (or geometric) thickness of the composite element
- User-defined ply thicknesses via the Ti field
- Setting the LAYERWISE field to 1 offers an option for through-thickness degrees of freedom. Each layer has four internal nodes, one on each face. This option offers greater accuracy but is more computationally expensive. Setting LAYERWISE option to 1 applies a piecewise linear temperature distribution through the laminate thickness. This field only applies to Heat Transfer Analysis.