/INTER/TYPE15

Block Format Keyword

/INTER/TYPE15 - Interface Type 15 - Ellipsoidal Surfaces to Elements Contact

Description

This interface is Ellipsoidal Surfaces to Elements Contact. It is a penalty contact interface without damping. This interface replaces interface TYPE14, especially if the mesh is coarser than the ellipsoid size. The slave surface must be a set of 3-node or 4-node segments (i.e. any kind of surface; except ELLIPS and MDELLIPS surfaces). The master surface must be a Madymo hyper-ellipsoidal surface or a RADIOSS hyper-ellipsoidal surface, and Interface does not allow penetrations up to half the ellipsoid.

Format

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
/INTER/TYPE15/inter_ID/unit_ID
inter_title
surf_IDs	surf_IDm
Stif		Fric

Field	Contents	SI Unit Example
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)
surf_IDs	Slave surface identifier (Integer)
surf_IDm	Master surface identifier (Integer)
Stif	Stiffness factor No default (Real)
Fric	Friction coefficient No default (Real)

1.	Interface stiffness is a nonlinear increasing function of penetration. Stif is the interface stiffness when the element enters the hyper-ellipsoid (that is when penetration is zero).

/INTER/TYPE15

/INTER/TYPE15

/INTER/TYPE15

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