PCOHE

Bulk Data Entry Defines the properties for cohesive elements.

Format

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
PCOHE PID MID INT THICKNESS   SECANT CORDM    

Example

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
PCOHE 1 2              

Definitions

Field Contents SI Unit Example
PID Unique cohesive element property identification number.

No default (Integer > 0)

 
MID Normal and shear behaviors of the cohesive elements entry identification number.

MID on PCOHE should refer to MCOHE or MCOHED entries.

No default (Integer > 0)

 
INT Integration scheme of the cohesive elements.
Blank or 0 (Default)
Gaussian integration scheme.
1
Closed form Newton-Cotes scheme.

(Integer)

 
THICKNESS Initial thickness of cohesive layer (applicable to MCOHED entry only).
Real > 0
A positive real value implies the initial thickness is prescribed as a real value.
AUTO
Initial thickness is calculated from geometry.

Default = 1.0

 
SECANT Stiffness type.
0 (Default)
Secant stiffness.
1
Tangential stiffness.

(Integer)

 
CORDM Material coordinate system identification number. 2
Blank (Default)
Element local coordinate system.
0
Basic coordinate system.

(Integer ≥ 0)

 

Comments

  1. All cohesive element property entries should have unique identification numbers.
  2. The cohesive material coordinate system is defined as the element local coordinate system by default or a prescribed system (CORDM = Integer ≥ 0). The material local 3-direction is taken as the cohesive normal direction corresponding to Mode I fracture, and the material local 1- and 2-directions correspond to Mode II and III fracture.