Variational principles for piezoelectric, thermopiezoelectric, and hygrothermopiezoelectric continua revisited
- Mechanics of Advanced Materials and Structures, 14(7), p.549-562, 2007 .
In this paper some variational principles are revisited for the fundamental equations of a regular region of piezoelectric, thermopiezoelectric, and hygrothermopiezoelectric (but non-stochastic, non-local, and non-relativistic)materials in the elastic range. Certain oversights, and especially, those involving the so-called Hu-Washizu variational principle of piezoelectricity that was first formulated in a paper ("Variational Principles in Piezoelectricity," Lettere Al Nuovo Ciment, vol. 7, 449-454, 1973)are clarified within the "ISI-Web of Science" publications in the open literature. Similar variational principles of piezoelectricity are cited.