/INTER/LAGMUL/TYPE17

Block Format Keyword

/INTER/LAGMUL/TYPE17 - Interface Type 17 - Surface to brick contact interface

Description

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

Field	Contents
inter_ID	Interface identifier (Integer, maximum 10 digits)
unit_ID	Optional 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 (Integer) = 0: sliding = 1: tied - the slave node is tied during impact with possible rebound.

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