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Magnetostrictive multiphysics coupling

Posted Dec 19, 2019, 2:42 p.m. EST Low-Frequency Electromagnetics, Piezoelectric Devices, Acoustics & Vibrations Version 5.4 2 Replies

Shivam Patel
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Hello everyone.

I have been using COMSOL Multipysucs since last few months. I was previously working with piezoelectric devices and the results were dead on with analytical results. My current work is focused on magnetostricitive material and I have to apply electric potential as an input in my model. In physics tab I was unable to find electric potential in physics tab of magnetic field. I thought of adding electrostatics physics to magnetostricton multipysics which is inbuilt in comsol. I couldn't find a way to couple them, is there any other way to couple them or apply electric potential with exisiting model?

I also want to know how to couple solid mechanics, electrostatics and magneticfields physics in a multiphysics. As my model consist of two parts Piezomagnetic material and Piezoelctric material which couples and forms a Magnetostrictive behavior. An image of my model is attached for further information.

Thanks

2 Replies Last Post Jan 2, 2020, 2:55 p.m. EST
Niklas Rom COMSOL Employee

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Posted: 5 years ago Dec 30, 2019, 3:14 a.m. EST
Updated: 5 years ago Dec 30, 2019, 3:15 a.m. EST

Hi, have you seen these:

https://www.comsol.com/blogs/modeling-magnetostriction-using-comsol

https://www.comsol.com/model/nonlinear-magnetostrictive-transducer-6063

Hi, have you seen these: https://www.comsol.com/blogs/modeling-magnetostriction-using-comsol https://www.comsol.com/model/nonlinear-magnetostrictive-transducer-6063
Shivam Patel
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Posted: 5 years ago Jan 2, 2020, 2:55 p.m. EST

Thanks for your reply I looked at those models but they were about non-linear modelling, but mine is a linear model having periodic conditions in 2 directions. There is no specific way desribed in that model to couple magneto-electro-mechanical physics together.

Thanks for your reply I looked at those models but they were about non-linear modelling, but mine is a linear model having periodic conditions in 2 directions. There is no specific way desribed in that model to couple magneto-electro-mechanical physics together.

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