Effect of size and configuration of 3-point bend bar specimens on J-R curves

Authors
Jitsukawa, S Naito, A Segawa, J
Citation
S. Jitsukawa et al., Effect of size and configuration of 3-point bend bar specimens on J-R curves, J NUCL MAT, 272, 1999, pp. 87-91
Citations number
5
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Nuclear Emgineering
Journal title
JOURNAL OF NUCLEAR MATERIALS
ISSN journal
00223115 → ACNP
Volume
272
Year of publication
1999
Pages
87 - 91
Database
ISI
SICI code
0022-3115(199905)272:<87:EOSACO>2.0.ZU;2-V
Abstract
Elastic-plastic fracture toughness of J(Q) values, crack opening displaceme nt (COD) values for crack initiation and J resistance (J-R) curves for crac k extension of a 7075-T6 aluminum alloy were measured with 3-point bend bar specimens of different sizes. Width and the thickness of the specimens ran ged from 1.25 to 20 mm. The a/W also ranged from 0.125 to 0.5. J(Q) and COD values exhibited no appreciable change with specimen size and configuratio n, while the J range and crack extension increased with ligament size. (C) 1999 Elsevier Science B.V. All rights reserved.