Piezoelectric coupling matrix input formatting

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I'm inputing the Voigt notation piezoelectric coupling matrix for strain-charge form into the "Material Contents" table. Can someone confirm that the formatting below is the proper notation?

My input: {{0,0,0,0,d15,0}, {0,0,0,d15,0,0}, {d31,d31,d33,0,0,0}}

where d15 and so on are replaced by the corresponding values in SI units.


1 Reply Last Post Jul 15, 2026, 10:59 a.m. EDT
Mark Cops COMSOL Employee

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Posted: 2 hours ago Jul 15, 2026, 10:59 a.m. EDT

Hi Daniel, Yes, this is consistent notation for common piezoelectric materials like PZT which are poled along one axis.

As an example, I output the coupling matrix dET for PZT-5H from this model (https://www.comsol.com/model/piezoacoustic-transducer-1477). It matches the matrix with known d15, d31, and d33 material properties. See attached screenshot.

Best Regards, Mark

Hi Daniel, Yes, this is consistent notation for common piezoelectric materials like PZT which are poled along one axis. As an example, I output the coupling matrix dET for PZT-5H from this model (https://www.comsol.com/model/piezoacoustic-transducer-1477). It matches the matrix with known d15, d31, and d33 material properties. See attached screenshot. Best Regards, Mark

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