caa a22 4500 397499582 CHVBK 20180308164529.0 cr unu---uuuuu 161202e199505 xx s 000 0 eng 10.1093/qjmam/48.2.237 doi (NATIONALLICENCE)oxford-10.1093/qjmam/48.2.237 ON THE DYNAMIC FRACTURE OF PIEZOELECTRIC MATERIALS [Elektronische Daten] [C. DASCALU, G. A. MAUGIN] Some problems in the fracture theory of piezoelectric materials are studied in the quasielectrostatic approximation. Asymptotic near-tip expressions for mechanical and electric fields are obtained, using a complex-variable approach. A closureintegral formula for the quasielectrostatic energy release rate is given, which permits the evaluation of this energy by the solution previously obtained. The connection between two electroelastic crack-extension forces provided by different forms of the energy balance is established. For the antiplane fracture of a transversely isotropic piezoelectric solid the stress and electrical intensity factors are obtained for small time values. The use of a Griffith-type propagation criterion leads to a differential equation for the crack-tip trajectory which is numerically solved and the solution dependence on the applied electric field is investigated. © Oxford University Press Articles nationallicence DASCALU C. Laboratoire de Modélisation en Mécanique, Université Pierre et Marie Curie, Tour 66, 4 place Jussieu, F-75252 Paris Cedex 05, France aut MAUGIN G. A. Laboratoire de Modélisation en Mécanique, Université Pierre et Marie Curie, Tour 66, 4 place Jussieu, F-75252 Paris Cedex 05, France aut The Quarterly Journal of Mechanics and Applied Mathematics Oxford University Press 48/2(1995-05), 237-255 0033-5614 48:2<237 1995 48 qjmamj https://doi.org/10.1093/qjmam/48.2.237 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/qjmam/48.2.237 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- DASCALU C. Laboratoire de Modélisation en Mécanique, Université Pierre et Marie Curie, Tour 66, 4 place Jussieu, F-75252 Paris Cedex 05, France aut NATIONALLICENCE 700 1- MAUGIN G. A. Laboratoire de Modélisation en Mécanique, Université Pierre et Marie Curie, Tour 66, 4 place Jussieu, F-75252 Paris Cedex 05, France aut NATIONALLICENCE 773 0- The Quarterly Journal of Mechanics and Applied Mathematics Oxford University Press 48/2(1995-05), 237-255 0033-5614 48:2<237 1995 48 qjmamj Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford