Results 161 to 170 of about 241,128 (188)

Sliding mode crack closure and mode III fatigue crack growth in mild steel

Acta Metallurgica, 1983
Abstract Mode III fatigue crack growth behaviour in AISI C1018 steel ( R = −1, 1 Hz) is investigated in circumferentially notched cylindrical specimens. The crack surfaces in contact glide against each other, the friction, abrasion and mutual support between them reducing the effective stress at the crack tip (“sliding mode crack closure”).
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Multiaxial mixed-mode cracking – small crack initiation and propagation*

Materials Testing, 2006
Abstract Both the fatigue crack path and fatigue life of CK45 steel and 42CrMo4 steel under various multiaxial loading paths are studied in this paper. The replica method was applied to monitor the crack initiation and small crack growth, the fractographic analyses were carried out on the fracture surface and the crack initiation angle ...
Manuel de Freitas, Luis Reis, Bin Li
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Mode III interface crack propagation

Engineering Fracture Mechanics, 1989
Abstract The asymptotic stress and displacement fields of a propagating interface crack under mode III conditions are determined by using the eigenfunction expansion technique. It is found that the well-known square root singularity is unchanged. A moving interface crack of constant length with constant speed is used as a simple illustrative example.
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Dynamic effects in mode III crack bifurcation

International Journal of Solids and Structures, 1986
Transient elastodynamic nonplanar self-similar Mode III crack growth in brittle materials is examined. The dynamic similarity and Chaplygin's transformation reduce the class of problems considered to the solution of Laplace's equation in a semi-infinite strip.
Dempsey, John P., Kuo, Mao-Kuen, Bentley, Diane L.   +2 more
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Fatigue crack propagaion under mixed mode loading

Applied Mathematics and Mechanics, 1984
Mixed mode fatigue crack propagation is analyzed, using a centre cracked plate geometry, loaded under uniaxial cyclic tension.
Cao, Guixin, Ju, Dingyi
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Intersonic mode II crack acceleration

Fatigue & Fracture of Engineering Materials & Structures, 1999
ABSTRACTAn analytic solution is given for intersonic mode II crack acceleration. The solution is obtained by first considering a self‐similar problem, motion of a semi‐infinite crack at constant velocity, under the action of a constant crack face load, appearing behind the crack edge.
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Mixed-mode crack propagation through reinforced concrete

Engineering Fracture Mechanics, 2007
This paper presents the results of a very recent experimental research program aimed at investigating mixed-mode fracture of reinforced concrete. The tests were designed so that only one single mixed-mode crack generates and propagates through the specimen, as opposed to the usual dense crack pattern found in most of the tests in scientific literature.
J.R. Carmona, J.R. Carmona, J.R. del Viso   +2 more
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Mixed-mode crack growth predictions

Engineering Fracture Mechanics, 1987
Abstract The problem of slow stable growth of an inclined crack in a plate subjected to uniaxial tension is studied by the strain energy density criterion. The stable crack growth process is simulated by predicting a series of crack growth steps corresponding to a piecewise loading increase when material elements along the direction of crack ...
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Concepts for bridged Mode ii delamination cracks

Journal of the Mechanics and Physics of Solids, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
MASSABO', ROBERTA, COX BN
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Mixed mode crack propagation

2002
Experimental results show that ductile crack extension occurs often under steady-state mixed mode conditions. Observations in experiments [118] confirm that material points undergo failure under mode I and mode III conditions, especially, for thin specimens the crack tip field is turned from pure mode I (normal stress failure) to combined mode I and ...
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