ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 9

Determination of Crack Growth Parameter N in Ceramics Under Creep Conditions

Fett, T
Research engineer, Kernforschungszentrum Karlsruhe, Arbeitsgruppe Zuverlässigkeit und Schadenskunde am Institute für Reaktorbauelemente, Postfach,

Munz, D
ProfessorMember of ASTM, Universität Karlsruhe, Institut für Zuverlässigkeit und Schadenskunde im Maschinenbau, Postfach,

Abstract

In cases of linear-elastic material behavior the parameter N of subcritical crack growth is often determined by dynamic bending tests with different loading rates. At high temperatures the obtained results are influenced by creep effects. A procedure is described to evaluate N under creep conditions by correction of bending strength and loading rate.

Keywords:
ceramics, crack propagation, creep properties, subcritical crack growth, scatter

Paper ID: JTE10773J
DOI: 10.1520/JTE10773J
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