Method to estimate crack-tip toughness from bending tests on prenotched bars

Authors
Fett, T Munz, D Thun, G
Citation
T. Fett et al., Method to estimate crack-tip toughness from bending tests on prenotched bars, J AM CERAM, 83(2), 2000, pp. 421-423
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN journal
00027820 → ACNP
Volume
83
Issue
2
Year of publication
2000
Pages
421 - 423
Database
ISI
SICI code
0002-7820(200002)83:2<421:MTECTF>2.0.ZU;2-2
Abstract
A strain-gauge procedure that enables determination of the crack-tip toughn ess (K-I0) from bending-strength tests is described, The procedure is appli ed to coarse-grained alumina: and yields an average K-I0 value of 2.51 MPa. m(1/2) with a standard deviation of 0.16 MPa.m(1/2).