The annular crack in piezoelectric material

• Autorzy: Dyka E. , Rogowski B.
• Konferencja: Konferencja mechaniki pękania / sympozjum (X ; 11-14.09.2005 ; Opole-Wisła, Polska)
• Języki publikacji: EN

Abstrakty

EN

The problem of electroelasticity for piezoelectric materials containing an annular crack is considered. For axially symmetric states three potentials are utilized, which determine the displacements, the electric potential, the stresses, the components of the electric field vector and the electric displacements in piezoelectric body. Two cases of boundary-value problems are considered, namely the electrically permeable and impermeable crack boundary conditions. The three-part mixed boundary conditions are reduced into an equivalent system of simultaneous algebraic equations. By means of the coefficients, which are obtained from this system, the electrical and mechanical fields in the plane where the annular crack appears are obtained. The main results are the intensity factors for stress and electric displacement.

Słowa kluczowe

EN

piezoelectric material; annular crack

• Wydawca: Oficyna Wydawnicza Politechniki Opolskiej
• Czasopismo: Zeszyty Naukowe. Mechanika / Politechnika Opolska
• Rocznik: 2005
• Tom: z. 82
• Strony: 53--64
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Dyka E.

• Technical University of Lodz, Polska

autor

Rogowski B.

• Technical University of Lodz, Polska

Bibliografia

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• [3] ROGOWSKI B., An annular crack in layered composites with transversely isotropic consituents, Zeit. Angew. Math. Mech., 64,7,1984, pp. 312-314
• [4] TSAI Y. M., Thermoelastic behaviour of transversely izotopic material containing a flat troi dal crack, J. Threm. Stresses, 21, 1998, pp. 881-895
• [5] TSAI Y. M., Thermoelastic problem of uniform heat flow distriuted by a flat troidal crack in a transversely izotopic medium , J.Therm. Stresses, 23, 2000, pp. 217-231
• [6] PAK Y. E., Linear elektro-elastic fracture mechanics of piezoelectric materials , Int. J. Fracture, 54 1992, pp. 79-100
• [7] SHINDO Y., OZAWA E. AND NOWACKI J.P., Singular stress and electric fields of cracked piezoelectric strip, Int. J. appl. Electromagnetics Mater., 1, 1990, pp. 77-87
• [8] WATSON G. N., A Treatise on the Theory of assel Functions, 2nd Edn, Cambridge University Press, Camridge, Great Britain