Adhesive Contact

[lokefong]

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]

Have you tried modelling it as a composite?

 

[lokefong]

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]

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/