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2D Phononic Band Gap Model

Nagi Elabbasi, Veryst Engineering

The 2D phononic band gap model described in my Guest COMSOL Blog

User Comments

Nov 6, 2018 at 12:29am UTC

It requires the version and won't be useful even for 5.3 version.

May 10, 2019 at 9:32am UTC

Thanks for your sharing

Jun 14, 2019 at 11:59am UTC

Dear Dr. Elabbasi,

I have a question regarding the computation of a phononic structure, I am trying to compute a band diagram of a phononic crystal but I would like to span four edges of the irreducible Brillouin zone (IBZ), not only 3 edges as in the tutorial file, and eventually to have my band diagram computed for a Bloch wavenumber spanning from Γ(0,0) to X(pi/L,0) to M(pi/L,pi/L) to Y (0,pi/L) and then back to Γ. Can you give me clues or ideas of what I should do to add a 4th segment on my band diagram going from Y to Γ? So far, I can only span 3 segments so my wavenumber goes from Γ(0,0) to X(pi/L,0) to M(pi/L,pi/L) to Y (0,pi/L). But I miss the segment from Y (0,pi/L) to Γ(0,0).

Thank You.

Best regards,

Aug 1, 2019 at 3:04pm UTC

In this example can you please explain kx ky wave vectors. How you write these vectors??

Thank you.

森男 阿
Dec 5, 2019 at 1:58am UTC

Can you share the later transmission model?

May 26, 2020 at 1:10am UTC

Can you extract the frequencies associated with the perpendicular displacements?

Aug 21, 2020 at 11:43am UTC

To. Nagi.
I am really interested in acoustic metamaterials.
I wonder about how to implement the band structure and Brillouin zone using COMSOL Multiphysics.
Thank you so much.
from Kim.

子文 郑
Nov 9, 2020 at 2:05am UTC

How could I take the influence of thickness into account when using this model? I am looking forward to your reply.

Yunying Zhou
Dec 1, 2022 at 11:45am UTC

Thank you for your kind sharing. :)

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