/INTER/LAGMUL/TYPE17

Block Format Keyword This interface simulates impact between external surfaces of two brick groups. The external surfaces can only be 16-node thick shell (/SHEL16) elements. Lagrange Multiplier conditions are used in this interface.

These kinematical conditions are only compatible with other Lagrange Multiplier kinematical conditions. This interface formulation is not compatible with SPMD parallel version.

Format

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
/INTER/LAGMUL/TYPE17/inter_ID/unit_ID
inter_title
grbrc_ID1 grbrc_ID2                
    ITIED              

Definitions

Field Contents SI Unit Example
inter_ID Interface identifier

(Integer, maximum 10 digits)

  
unit_ID Unit Identifier

(Integer, maximum 10 digits)

  
inter_title Interface title

(Character, maximum 100 characters)

  
grbrc_ID1 First brick group identifier (16-node thick shells group)

(Integer)

  
grbrc_ID2 Second brick group identifier (16-node thick shells group)

(Integer)

  
ITIED Tied option flag.
= 0
Sliding
= 1
Tied - the secondary node is tied during impact with possible rebound.

(Integer)

  

Comments

  1. Both surfaces are defined with two brick IDs and not surface IDs.
  2. These kinematical conditions are only compatible with other Lagrange multiplier kinematical conditions:
    • Interface TYPE16
    • Interface TYPE17
    • Interface TYPE2
    • Interface TYPE7
    • Boundary condition
    • Rigid body
    • Imposed velocity
    • Rigid wall
    • General joints
    • Multi-point constraints