Adhesive Contact

Question

Adhesive Contact

lokefong (Mechanical)

(OP)

9 Jul 12 00:45

Hi,

I am doing a FEA on the plastic casing by applying force normal to particular area. However, I have a PMMA screen bonded to the plastic casing by adhesive layer. How should I get this input into FEA? I had tried to put "bond" contact between both contacting surfaces of two components. But the result does not meet expectation, as I have done physical testing on real parts. I would like to do FEA to validate the existing design before I do modification.

Thank you.

Loke

EngAddict (Mechanical) · Answer 1 · 2012-07-09 07:08:54

Have you tried modelling it as a composite?

lokefong (Mechanical) · Answer 2 · 2012-07-10 23:55:00

Do you mean modeling the Adhesive layer (let says 0.5mm thickness) in between the two parts and set it as a composite material? What about the contact settings? Set Bonded or no penetration?

Thanks.
Loke

rstupplebeen (Mechanical) · Answer 3 · 2012-07-11 09:17:44

What is the purpose of the simulation? Is it to model the strength of the bond or is the bond simply to transfer load to a different region of interest. If it is the latter I would model the part as 1 solid with different material properties. I hope this helps.

Rob Stupplebeen
https://sites.google.com/site/robertkstupplebeen/

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