ON THE NECESSITY OF INCLUDING ELECTRICAL-CONDUCTIVITY IN THE DESCRIPTION OF PIEZOELECTRIC FRACTURE IN REAL MATERIALS

Authors
TIERSTEN HF SHAM TL
Citation
Hf. Tiersten et Tl. Sham, ON THE NECESSITY OF INCLUDING ELECTRICAL-CONDUCTIVITY IN THE DESCRIPTION OF PIEZOELECTRIC FRACTURE IN REAL MATERIALS, IEEE transactions on ultrasonics, ferroelectrics, and frequency control, 45(1), 1998, pp. 1-3
Citations number
10
Categorie Soggetti
Engineering, Eletrical & Electronic",Acoustics
Journal title
IEEE transactions on ultrasonics, ferroelectrics, and frequency control → ACNP
ISSN journal
08853010
Volume
45
Issue
1
Year of publication
1998
Pages
1 - 3
Database
ISI
SICI code
0885-3010(1998)45:1<1:OTNOIE>2.0.ZU;2-U
Abstract
Because no real material is a perfect insulator, but has some small el ectrical conductivity, under static circumstances the piezoelectric eq uations are not applicable to any real material and, hence, have no ph ysical significance. On account of the existence of real current, when the time-dependence is sufficiently slow, the zero charge equation of electrostatics does not apply and must be replaced by the equation of the continuity of electric charge.