Transient dynamic response of piezoelectric bodies subjected to internal electric impulses

The response of piezoelectric bodies disturbed by internal electric sources is investigated using integral representations of Green|s functions and their derivatives[ The emphasis of the article is placed on transient dynamic phenomena promoted by high intensity electric discharges applied over very short intervals of time[ To that end closed form integral representations of the electro!elastic variables are derived and applied to investigate the behavior of transversely isotropic piezoelectric ceramics[ In particular\ the characteristics of the induced stress and electric _eld components are investigated numerically for the case of charge impulses of triangular shape[