caa a22 4500 46912508X CHVBK 20180323133148.0 cr unu---uuuuu 170328e19920301xx s 000 0 eng 10.1007/BF00040857 doi (NATIONALLICENCE)springer-10.1007/BF00040857 Pak Y. Grumman Corporate Research Center, 11714, Bethpage, New York, USA aut Linear electro-elastic fracture mechanics of piezoelectric materials [Elektronische Daten] [Y. Pak] The concepts of linear elastic fracture mechanics, generalized to treat piezoelectric effects, are employed to study the influence of the electrical fields on the fracture behavior of piezoelectric materials. The method of distributed dislocations and electric dipoles, already existing in the literature, is used to calculate the electro-elastic fields and the energy-release rate for a finite crack embedded in an infinite piezoelectric medium which is subjected to both mechanical and electric loads. The energy-release rate expressions show that the electric fields generally tend to slow the crack growth. It is shown that the stress intensity factor criterion and the energy-release rate criterion differ when the energetics of the electric field is taken into account. The study of crack tip singular stress field yields a possible explanation for experimentally observed crack skewing in the presence of a strong electric field. Kluwer Academic Publishers, 1992 International Journal of Fracture Kluwer Academic Publishers 54/1(1992-03-01), 79-100 0376-9429 54:1<79 1992 54 10704 https://doi.org/10.1007/BF00040857 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00040857 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Pak Y. Grumman Corporate Research Center, 11714, Bethpage, New York, USA aut NATIONALLICENCE 773 0- International Journal of Fracture Kluwer Academic Publishers 54/1(1992-03-01), 79-100 0376-9429 54:1<79 1992 54 10704 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer