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3D Interface Element

By Elham - Posted on 20 February 2010

Hello.I'm trying to generate a 3D model of masonry infill wall subjected to out-of-plane loading. But I got error in the type of interface element . The type of interface element is line, 2+2 nodes, shell element (L16IF) and the type of adjacent wall element is quadrilateral, 4 nodes shell element(Q20SF). I suppose these elements are not consistent so that I got error. Which type of element should I use for wall and interface to prevent this error in my 3D model? Thanks

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RE: 3D Interface Element
Submitted by Kesio Palacio on Tue, 02/23/2010 - 11:08.

Dear Elham,
The shell interface element L16IF was formulated to be placed between the edges of shell elements of linear interpolation, as for instance Q20SF elements (4-nodes quadrilateral shell element). Make sure that you select two edges of shell elements of linear interpolation when defining the shell interface element.
If the problem persists, send your question with the corresponding model file enclosed to TNO DIANA support.
I hope it may be helpful,
Kesio Palacio
TNO DIANA support team

Dear Kesio, Thanks for your
Submitted by Elham on Fri, 02/26/2010 - 09:14.

Dear Kesio,
Thanks for your effective reply to my problem, It has solved the problem. But I've another question about Interface nonlinear materials which can be used with interface shell elements in 3D model.Is it allowed to use  discrete crack models or crack-shear-crush model for interface shell element ? 
Thanks

I need your help
Submitted by amool2010 on Wed, 03/31/2010 - 17:38.

Dear Eham: Can you help me to get a copy of the program?
Amal Salah
Assistant professor
Alexandria Universty
mhnasr@aol.com

email
Submitted by Arno Wolthers on Wed, 04/07/2010 - 15:13.

Please sent an email to sales@tnodiana.com to request the program.

RE: Dear Kesio, Thanks for your
Submitted by Kesio Palacio on Thu, 03/04/2010 - 16:47.

Dear Elham,
Discrete crack and crack-shear-crush material interface models are not available for shell interface elements. Please check Section 9.3 of DIANA 9.4 Material Library manual for details.
I hope it to be helpful,
Kesio Palacio
TNO DIANA support team