Sage Journals: Discover world-class research

Abstract

The effect of the mechanical and electric field coupling on the behavior of their characteristics near the edge of a dihedral angle is investigated. The material of the dihedral angle is assumed to be piezoelectric of the hexagonal symmetry class 6 mm. The electroelastic state is caused by a longitudinal shear strain along the edge of the dihedral angle.

The expressions for the exponents and coefficients of singularities of studied physical quantities are derived when both the exponents and the coefficients of singularities depend on the electromechanical parameters of the material.

Values of the corresponding corrections taking into account the piezomodulus for certain piezoelectric materials are calculated.

Get full access to this article

View all access options for this article.

References

Polovinkina

I.B.

and Ulitko

A.F.

, Theory of equilibrium of piezoceramic bodies with cracks, Thermal Stresses in Structural Components {Kiev) 18 (1978), 10–17 (in Russian).

Galpchian

P.V.

, Determination of stress singularities near the vertex of a sector of a piezocrystal, J. Izv. AN Arm. SSR, Mekhanika 40(5) (1987), 35–39.

Galpchian

P.V.

, Determination of coupled electromechanical fields in a cylindrical sector of a piezocrystal, J. Izv. AN Arm. SSR, Mekhanika 43(5) (1990), 21–25.

Shindo

, Ozawa

and Nowacki

J.P.

, Singular stress and electric fields of a cracked piezoelectric strip, Int. J. Appl. Electromagn. Mater. 1(1) (1990), 77–87.

Sosa

, Plane problems in piezoelectric media with defects, Int. J. Solids and Structures 28(4) (1991), 491–505.

Belubekian

M.V.

, Galpchian

P.V.

, Determination of coupled electroelastic field singularities at the corner point of a piezoelectric body in the form of a dihedral angle under longitudinal shear strain, lzv. Rossii AN, Mekhanika Tverdogo Tela 3 (1994), 102–108 (in Russian).

Parton

V.Z.

and Kudryavtsev

B.A.

, Electromagnetoelasticity of Piezoelectric and Electroconductive Bodies (Nauka, Moscow, 1988), p. 40.

Chobanian

K.S.

, Stresses in Composite Elastic Bodies (Acad. Sci. of Armenia, Yerevan, 1987), 228–241 (in Russian).

Electroelastic Field Behavior in the Vicinity of the Edge of A Piezoelectric Body

Abstract

Get full access to this article

References