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Required Elasticity Matrix, Coupling Matrix, Relative Permittivity Values Of Structural Steel

Posted Mar 15, 2022, 4:00 a.m. EDT Piezoelectric Devices 5 Replies

Syed Fahmidul Huq
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Greetings, I am working on a simulation where I am using Structural steel layer in between two pizeeclectric material layers. However, I require parameters like Elasticity Matrix, coupling matrix and relative permittivity to acquire a solution. Please do help me if there is any solution to this problem.

Thank you

5 Replies Last Post Mar 17, 2022, 4:50 p.m. EDT
Henrik Sönnerlind COMSOL Employee

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Posted: 2 years ago Mar 15, 2022, 7:25 a.m. EDT

Steel is not piezoelectric, so you should use Linear Elastic Material, not a Piezoelectric Material in that domain.

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Henrik Sönnerlind
COMSOL
Steel is not piezoelectric, so you should use Linear Elastic Material, not a Piezoelectric Material in that domain.
Syed Fahmidul Huq
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Posted: 2 years ago Mar 16, 2022, 12:25 a.m. EDT

Steel is not piezoelectric, so you should use Linear Elastic Material, not a Piezoelectric Material in that domain.

I am using Lead Zirconate Titanate (PZT-5A) as my piezoelectric material while using a layer of structural steel in between both layers of PZT-5A, yet I am being asked for the parameters mentioned above.

>Steel is not piezoelectric, so you should use Linear Elastic Material, not a Piezoelectric Material in that domain. I am using Lead Zirconate Titanate (PZT-5A) as my piezoelectric material while using a layer of structural steel in between both layers of PZT-5A, yet I am being asked for the parameters mentioned above.
Henrik Sönnerlind COMSOL Employee

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Posted: 2 years ago Mar 16, 2022, 8:54 a.m. EDT

The reason you are being asked for those parameters is that the steel domain is included in the selection in the Piezoelectric Material node.

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Henrik Sönnerlind
COMSOL
The reason you are being asked for those parameters is that the steel domain is included in the selection in the Piezoelectric Material node.
Syed Fahmidul Huq
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Posted: 2 years ago Mar 17, 2022, 12:53 p.m. EDT
Updated: 2 years ago Mar 17, 2022, 12:53 p.m. EDT

The reason you are being asked for those parameters is that the steel domain is included in the selection in the Piezoelectric Material node.

Thank you sir. Would you be able to tell me how do I change the node for that very specific material?

>The reason you are being asked for those parameters is that the steel domain is included in the selection in the Piezoelectric Material node. Thank you sir. Would you be able to tell me how do I change the node for that very specific material?
Edgar J. Kaiser Certified Consultant
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Posted: 2 years ago Mar 17, 2022, 4:50 p.m. EDT

It is simple: Leave all domains in the default Linear Elastic Node, except the Piezoelectric domain. Check respective application library models.

Cheers Edgar

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Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
It is simple: Leave all domains in the default Linear Elastic Node, except the Piezoelectric domain. Check respective application library models. Cheers Edgar

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