A shallow crack assessment scheme for generalised material behaviour in tension
A shallow crack assessment scheme for generalised material behaviour in tension
A previously proposed estimation procedure for J-strain relationships in power law materials has been further augmented so that it can be used for general engineering applications to real material stress-strain curves. The extension covers two important aspects of material curve representation. First the effects of including the material constant ? of the power law on J are included—this inclusion facilitates a more accurate curve fitting of real material curves. Secondly, a set of equations is presented to account for the presence of a perfectly-plastic yield plateau, in addition to the strain hardening portion. The validity of the augmented procedure was confirmed by comparison with finite element solutions on specimens with fictitious and real material curves.
763-785
Lau, C.L.
69b72f5a-127d-4bc4-9407-4a066b9150a7
Lee, M.M.K.
b0eec6ec-1557-494d-bbc5-4cd053cfbe46
Luxmoore, A.R.
307e05c5-bacc-4f32-9ea7-4363f2e526e8
July 1995
Lau, C.L.
69b72f5a-127d-4bc4-9407-4a066b9150a7
Lee, M.M.K.
b0eec6ec-1557-494d-bbc5-4cd053cfbe46
Luxmoore, A.R.
307e05c5-bacc-4f32-9ea7-4363f2e526e8
Lau, C.L., Lee, M.M.K. and Luxmoore, A.R.
(1995)
A shallow crack assessment scheme for generalised material behaviour in tension.
Engineering Fracture Mechanics, 51 (5), .
(doi:10.1016/0013-7944(94)00321-8).
Abstract
A previously proposed estimation procedure for J-strain relationships in power law materials has been further augmented so that it can be used for general engineering applications to real material stress-strain curves. The extension covers two important aspects of material curve representation. First the effects of including the material constant ? of the power law on J are included—this inclusion facilitates a more accurate curve fitting of real material curves. Secondly, a set of equations is presented to account for the presence of a perfectly-plastic yield plateau, in addition to the strain hardening portion. The validity of the augmented procedure was confirmed by comparison with finite element solutions on specimens with fictitious and real material curves.
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Published date: July 1995
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Local EPrints ID: 75346
URI: http://eprints.soton.ac.uk/id/eprint/75346
ISSN: 0013-7944
PURE UUID: 3fa81093-f15e-43fc-a020-a13539c903c8
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Date deposited: 11 Mar 2010
Last modified: 13 Mar 2024 22:50
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Author:
C.L. Lau
Author:
M.M.K. Lee
Author:
A.R. Luxmoore
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