On the stress state of a piezoceramic body with a flat crack under symmetric loads |
| |
Authors: | V S Kirilyuk |
| |
Institution: | (1) S. P. Timoshenko Institute of Mechanics, National Academy of Sciences of Ukraine, Kiev |
| |
Abstract: | A static-equilibrium problem is solved for an electroelastic transversely isotropic medium with a flat crack of arbitrary
shape located in the plane of isotropy. The medium is subjected to symmetric mechanical and electric loads. A relationship
is established between the stress intensity factor (SIF) and electric-displacement intensity factor (EDIF) for an infinite
piezoceramic body and the SIF for a purely elastic material with a crack of the same shape. This allows us to find the SIF
and EDIF for an electroelastic material directly from the corresponding elastic problem, not solving electroelastic problems.
As an example, the SIF and EDIF are determined for an elliptical crack in a piezoceramic body assuming linear behavior of
the stresses and the normal electric displacement on the crack surface
__________
Translated from Prikladnaya Mekhanika, Vol. 41, No. 11, pp. 67–77, November 2005. |
| |
Keywords: | piezoelectricity flat crack elliptical crack stress intensity factor electric-displacement intensity factor |
本文献已被 SpringerLink 等数据库收录! |
|