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Shielding Stresses for Soft PZT

Fett, Theo and Kounga Njiwa, Alain Brice and Rödel, Jürgen (2005):
Shielding Stresses for Soft PZT.
134, In: International Journal of Fracture, (2), pp. 151-159, ISSN 0376-9429, [Online-Edition: http://dx.doi.org/10.1007/s10704-005-8547-7],
[Article]

Abstract

Crack opening displacements (COD) were obtained on fully developed cracks in compact tension specimens manufactured from a commercial, soft lead zirconate titanate (PZT). The data were evaluated using the weight function method to provide crack closures stresses as a function of distance to the crack tip. As ferroelastic toughening in PZT shows time-dependent effects, data were taken at different stages of unloading. The peak closure stress was determined as 20 MPa.

Item Type: Article
Erschienen: 2005
Creators: Fett, Theo and Kounga Njiwa, Alain Brice and Rödel, Jürgen
Title: Shielding Stresses for Soft PZT
Language: English
Abstract:

Crack opening displacements (COD) were obtained on fully developed cracks in compact tension specimens manufactured from a commercial, soft lead zirconate titanate (PZT). The data were evaluated using the weight function method to provide crack closures stresses as a function of distance to the crack tip. As ferroelastic toughening in PZT shows time-dependent effects, data were taken at different stages of unloading. The peak closure stress was determined as 20 MPa.

Journal or Publication Title: International Journal of Fracture
Volume: 134
Number: 2
Uncontrolled Keywords: Closure stresses; crack opening displacements; PZT; weight functions
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 18 May 2011 15:19
Official URL: http://dx.doi.org/10.1007/s10704-005-8547-7
Identification Number: doi:10.1007/s10704-005-8547-7
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