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3d elasticity

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Hello!

I need to simulate structure like a mattress: 2 surfaces connected with periodically distributed thin rods, 3d elasticity problem.

When building geometry following question arose: whether it is possible to build a single element (rod between the pieces of the surface), and then continue it periodically? Unfortunately I could not find such a function myself.
And one more question. I am using Weak Form PDE. Are there any ways to enter weak expression except explicit element-by-element? Maybe I could define somewhere elasticity tensor or in any case I should enter all more than 80 summands manually?

In addition, I would be grateful if you could advise any books or videos related to using comsol for such type of problem.

2 Replies Last Post 29 gen 2014, 07:12 GMT-5
Phillip COMSOL Employee

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Posted: 1 decade ago 28 gen 2014, 06:47 GMT-5
Hi,

I can at least help you quickly with the first issue: You can easily add periodically geometric objects using the array operation (Rightclick on Geometry1-> Transforms -> array). Just select an input object and fill out the Size and Displacement fields.

Good luck with your model.

--
Best Regards
Phillip
Hi, I can at least help you quickly with the first issue: You can easily add periodically geometric objects using the array operation (Rightclick on Geometry1-> Transforms -> array). Just select an input object and fill out the Size and Displacement fields. Good luck with your model. -- Best Regards Phillip

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Posted: 1 decade ago 29 gen 2014, 07:12 GMT-5
Thank you very much!
Thank you very much!

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