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Penalty Method

Penalty Method

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Penalty Method

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Penalty method is one of the contact treatments used in RADIOSS. Interfaces using the penalty method are based on master/slave treatment. Penalty methods do not ensure kinematic contact continuity, but they add springs at the contact spots.

Interface Types with Penalty Method

Contact Treatment

 

Types

Application

Description

Penalty Method

Slide / Void

TYPE3

Use of TYPE7 is recommended

Sliding with void opening and friction between two Lagrangian surfaces.

Symmetric computation (J. Hallquist algorithm).

Slide / Void

TYPE5

Use of TYPE7 is recommended

Sliding with void opening and friction between two Lagrangian surfaces.

Non-symmetric computations (master-slave algorithm).

Slide / Void

TYPE6

User-defined contacts

Impact contact between two rigid surfaces.

Slide / Void

TYPE7

Solid contact impact at all speeds

Multipurpose interface.

Can be used in place of TYPE3 or TYPE5. Node to Segment contact.

Slide

TYPE8

Stamping applications

Drawbead line.

Tied / Void

TYPE10

Special purpose interface

Tied contact + void opening (optional)

Slide / Void

TYPE11

For beams, bars or springs

Edge to Edge contact.

Slide / Void

TYPE14

For MADYMO to RADIOSS coupling.

Hyper-ellipsoid to nodes contact

Slide / Void

TYPE15

For MADYMO to RADIOSS coupling.

Hyper-ellipsoid to elements contact

Slide / Void

TYPE19

Solid contact impact at all speeds and for beams, bars or springs.

General contact interface.

Node to segment contact and Edge to Edge contact.

Equivalent to one interface TYPE7 + one interface TYPE11.

Slide / Void

TYPE20

This contact interface can replace interface TYPE3, TYPE5, TYPE7, TYPE11 or TYPE19

Single surface, surface to surface with optional Edge to Edge contact.

No time step condition with soft penalty.

Slide / Void

TYPE21

For stamping

Specific interface between a non-deformable master surface and a slave surface designed for stamping.

Slide / Void

TYPE23

For airbag

Soft penalty contact for airbag.

Slide / Void

TYPE24

This contact interface can replace interface TYPE3, TYPE5, TYPE7, or TYPE20.

General contact interface