Loading…

Fracture analysis on the arc-shaped interface in a layered cylindrical piezoelectric sensor polarized along its axis

Fracture analysis is performed for the arc-shaped interface in a layered cylindrical piezoelectric sensor polarized along its axis. Parametric studies on the numerical results of the singular integral equation yield three guidelines for optimal designs of cylindrical piezoelectric sensors made for a...

Full description

Saved in:
Bibliographic Details
Published in:Engineering fracture mechanics 2009-09, Vol.76 (13), p.2065-2073
Main Authors: Li, Yong-Dong, Lee, Kang Yong
Format: Article
Language:English
Subjects:
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Fracture analysis is performed for the arc-shaped interface in a layered cylindrical piezoelectric sensor polarized along its axis. Parametric studies on the numerical results of the singular integral equation yield three guidelines for optimal designs of cylindrical piezoelectric sensors made for axial shear testing. (a) The optimal value of the radius ratio is from 1.1 to 1.5. (b) A stiff piezoelectric layer plus a soft central cylindrical substrate can generate good strength matching on the interface. (c) An unelectroded rather than electroded outer surface is beneficial to reducing the stress intensity factor of the interface crack.
ISSN:0013-7944
1873-7315
DOI:10.1016/j.engfracmech.2009.05.017