Difference between revisions of "Ignore Contact Law"
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== Description == | == Description == | ||
This [[Contact Laws|contact law]] is not actually a contact law | This [[Contact Laws|contact law]] is not actually a contact law. For [[Multimaterial MPM|multimaterial]] contact, this law will revert to a single velocity field or revert to state as if there was no material interface. For simulations with more than two materials where some contact by other contact laws and others should use single velocity fields, the better approach than using this law is to use the [[Common Material Properties#Contact Properties|shareMatField (matID)]] in materials that should share the same field, and therefore always "stick" at their interfaces. | ||
When modeling [MPM Input Files#Using Explicit Cracks|explicit cracks]], this law skips all contact calculations. As a result, this law will give poor results for crack problems, unless those cracks never experience contact. | |||
== Properties == | == Properties == | ||
This contact law has no properties that need to be set. | This contact law has no properties that need to be set. | ||
Revision as of 10:51, 3 December 2025
Description
This contact law is not actually a contact law. For multimaterial contact, this law will revert to a single velocity field or revert to state as if there was no material interface. For simulations with more than two materials where some contact by other contact laws and others should use single velocity fields, the better approach than using this law is to use the shareMatField (matID) in materials that should share the same field, and therefore always "stick" at their interfaces.
When modeling [MPM Input Files#Using Explicit Cracks|explicit cracks]], this law skips all contact calculations. As a result, this law will give poor results for crack problems, unless those cracks never experience contact.
Properties
This contact law has no properties that need to be set.