contact between honeycomb layer and rebar mesh

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Shubham Sharma

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Jul 27, 2026, 5:00:47 AM (yesterday) Jul 27
to LS-DYNA2
Hello everyone,
I want to define contact between the rebar layer, composed of beam elements, and the honeycomb layer, composed of shell elements as shown in the uploaded image; both are in physical contact only,  the whole assembly is to be tested at high strain rate loading.
What cards shall I use to define the contact between the two?
honeycomb and rebar.png

l...@schwer.net

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Jul 27, 2026, 5:42:58 PM (yesterday) Jul 27
to Shubham Sharma, LS-DYNA2

I googled “ls-dyna contact beam to shell edge” and received this reply:

 

To model contact between a beam element and a shell edge in LS-DYNA, use *CONTACT_AUTOMATIC_GENERAL, add null beams along shell edges, and include those null beams on the slave side. Standard surface contacts do not reliably track raw shell-edge to beam interactions without geometric preparation.

 

                --len

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Ameen Topa

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Jul 27, 2026, 8:52:23 PM (yesterday) Jul 27
to L...@schwer.net, Shubham Sharma, LS-DYNA2
Hi Subham,

Check the video below, and see which option that works best for your case (beam to shell edge)
https://www.youtube.com/watch?v=KgvYHbMObso

Regards,
Ameen 

Shubham Sharma

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Jul 27, 2026, 11:44:30 PM (22 hours ago) Jul 27
to Ameen Topa, L...@schwer.net, LS-DYNA2
Thankyou everyone 
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