eFunda: Symbol Definitions of Piezo Materials

Piezo Symbol Definitions

Following is a description of all matrix variables used in the piezoelectric constitutive equations.

Symbol	Object Type	Size	Units	Meaning
	vector	6 x 1		stress components (e.g. s₁)
	vector	6 x 1		strain components (e.g. e₃)
	vector	3 x 1		electric field components
	vector	3 x 1		electric charge density displacement components
	matrix	6 x 6		compliance coefficients
	matrix	6 x 6		stiffness coefficients
	matrix	3 x 3		electric permittivity
	matrix	3 x 6		piezoelectric coupling coefficients for Strain-Charge form
	matrix	3 x 6		piezoelectric coupling coefficients for Stress-Charge form
	matrix	3 x 6		piezoelectric coupling coefficients for Strain-Voltage form
	matrix	3 x 6		piezoelectric coupling coefficients for Stress-Voltage form

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