How to remove intersection in solid elements

Hi All,

I want to create 2 solid blocks touching each other and bolted together. I meshed them and when I import the same in Hypercrash and checked for intersections, it shows me an intersection.

<?xml version="1.0" encoding="UTF-8"?>

I have tried to resolve this by Remove intersections option or 3D mesh editing, but could not remove this intersection.

Can you please help me how to remove such intersections and corresponding penetration.

Thanks in advance.

Regards

Nitin Jain

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Simon Križnik

Hi,

clearing intersection in this model should be easy- just translate one of the components in z-direction so there is a small gap, that is required for contact type 2 (tied) and 7 (general).

If no physical gap is required then go for type 20 contact.

Share the model if the issue persists.

Altair Forum User

Hi @Ivan

I cant move the component in z direction. As I wanted to simulate them with touch condition (gap in z direction is 0).

Moreover entire geometry consist of more than 35 parts which will be a big task to align all of them again.

I am having same problem with almost all the parts.

I have also tried to give Type 20 contact but interference is still there.

May you please share the recommended parameters for Type 20 contact for Crash Application.

Regards

Nitin Jain

Simon Križnik

Also try interface type 24:

strengths-and-weaknesses-of-the-different-contact-formulations-available-in-explicit-software

https://community.altair.com/community?id=community_question&sys_id=29468c761b2bd0908017dc61ec4bcb87

Try setting similar flags to type 7 crash recommended setup

Altair Forum User

Hi,

Make sure that both contact face nodes are in same plane as per CAD data.

This can avoid intersection if meshing is not checked activating CAD in wire frame mode.