Contact Interactions

Contact elements are generated on the mesh using Interactions described below, in the same way as volume elements.

Rigid-Defo contact

Interaction between a rigid body (die), meshed or not, and a deformable meshed entity.

ci = RdContactInteraction(number)
ci.setTool(gObject1)
ci.push(gObject2)
ci.setSmoothNormals(bool)
ci.addProperty(prp)
interactionset.add(ci)

where

`number`	number of the `Interaction`
`gObject1`	Reference of a geometric object (facetised contact), meshed or not
`gObject2`	Reference of a meshed geometric object
`prp`	Properties of contact elements to generate
`setTool`	Rigid tools

Facetised tool
= True (default) : continuous normal - projection on a MultiProjWire or MultiprojSkin
= False : discontinuous normal - projection on Wire or Skin|

Defo-Defo contact

Interaction between two different deformable meshed entities. By default, contact is double in two steps. First, the nodes from the second body are considered as slaves of the first body, then, nodes from the first are considered as slaves of the second.

ci = DdContactInteraction(number)
ci.setTool(gObject1)
ci.push(gObject2)
ci.setSmoothNormals(bool)
ci.setGeoContact()
ci.setSinglePass()
ci.addProperty(prp)
interactionset.add(ci)

where

`number`	number of the `Interaction`
`gObject1`, `gObject2`	Reference of a meshed geometric object
`prp`	Properties of contact elements to generate
`setTool`	“Preferential” tool (tool in one step and for thermomechanical contact)
`setSmoothNormals(bool)`	Facetised tool = True (default) : continuous normal - projection on a `MultiProjWire` or `MultiprojSkin` = False : discontinuous normal (normal not smoothed, might lead to convergence issue)- projection on `Wire` or `Skin`
`setSinglePass()`	Contact in one step (Nodes from second body are slaves of the first one)
`setGeoContact()`	Contact between nodes of the second body and a spline rebuild from nodes of the first body

Auto - Contact

Interaction between two parts of a same meshed body.

ci = ScContactInteraction(number)
ci.push(gObject1)
ci.setSmoothNormals(bool)
ci.addProperty(prp)
interactionset.add(ci)

where

`number`	number of the `Interaction`
`gObject1`	Reference of a mesehd geometric object
`prp`	Properties of contact elements to generate
`setSmoothNormals(bool)`	Facetised tool = True (default) : continuous normal - projection on a `MultiProjWire` or `MultiprojSkin` = False : discontinuous normal - projection on `Wire` or `Skin`

Rigid-Defo contact monitored in force

Interaction between a rigid body (die) and a deformable meshed entity. When this contact interaction is instantiated, the rigid body gets a node to impose force monitoring. Consequently, the body has rigid body modes in translation.

ci = FdRdContactInteraction(number)
ci.setTool(gObject1)
ci.push(gObject2)
ci.setSmoothNormals(bool)
ci.addProperty(prp)
interactionset.add(ci)

where

`number`	number of the `Interaction`
`gObject1`	Reference of a geometric object (facetised contact), meshed or not
`gObject2`	Reference of a meshed geometric object
`prp`	Properties of contact elements to generate
`setTool`	Rigid tools
`setSmoothNormals(bool)`	Facetised tool = True (default) : continuous normal - projection on a `MultiProjWire` or `MultiprojSkin` = False : discontinuous normal - projection on `Wire` or `Skin`