# Contact stabilize

**URL:** <https://calculix.discourse.group/t/contact-stabilize/2451>\
**Category:** Uncategorized\
**Created:** [October 25, 2024, 10:15am UTC](https://calculix.discourse.group/t/contact-stabilize/2451 "2024-10-25T10:15:04Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Iacobellis88](https://avatars.discourse-cdn.com/v4/letter/i/9de0a6/32.png) [@Iacobellis88](https://calculix.discourse.group/u/Iacobellis88)\
**Post date:** [October 25, 2024, 10:15am UTC](https://calculix.discourse.group/t/contact-stabilize/2451/1 "2024-10-25T10:15:04Z")

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Does anyone know if there is a card as \*contact controls stabilize in calculix?  
thank you

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**Author:** ![Calc\_em](https://avatars.discourse-cdn.com/v4/letter/c/43a26b/32.png) [@Calc\_em](https://calculix.discourse.group/u/Calc_em)\
**Post date:** [October 25, 2024, 10:20am UTC](https://calculix.discourse.group/t/contact-stabilize/2451/2 "2024-10-25T10:20:09Z")

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No, only `*CONTACT DAMPING` but just for the implicit dynamic procedure.

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**Author:** ![jbr](https://avatars.discourse-cdn.com/v4/letter/j/ecccb3/32.png) [@jbr](https://calculix.discourse.group/u/jbr)\
**Post date:** [October 25, 2024, 11:11am UTC](https://calculix.discourse.group/t/contact-stabilize/2451/3 "2024-10-25T11:11:53Z")

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You can look at the controls card and there are options for contact, but be careful.

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**Author:** ![Iacobellis88](https://avatars.discourse-cdn.com/v4/letter/i/9de0a6/32.png) [@Iacobellis88](https://calculix.discourse.group/u/Iacobellis88)\
**Post date:** [October 25, 2024, 12:43pm UTC](https://calculix.discourse.group/t/contact-stabilize/2451/4 "2024-10-25T12:43:34Z")

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I got the convergence of my model with c3d4.Now i switched them into c3d10 but I have on a node the same identical residual value for each iteration.  
Do anyone can help me?

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<div class="post-metadata">

**Author:** ![Calc\_em](https://avatars.discourse-cdn.com/v4/letter/c/43a26b/32.png) [@Calc\_em](https://calculix.discourse.group/u/Calc_em)\
**Post date:** [October 25, 2024, 12:52pm UTC](https://calculix.discourse.group/t/contact-stabilize/2451/5 "2024-10-25T12:52:40Z")

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> [@jbr](#):
>
> You can look at the controls card and there are options for contact, but be careful.

`*CONTACT CONTROLS, STABILIZE` in Abaqus is used to add some numerical damping to handle initial rigid body motions. `*CONTROLS` common for both solvers is meant for general-purpose solver controls (mostly convergence criteria).