eFunda: Symbol Definitions of Piezo Materials
engineering fundamentals Piezo: Symbol Definition
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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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