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Mode II Fatigue Crack Propagation
Journal of Basic Engineering, 1971Fatigue crack propagation rates were obtained for 2024-T3 bare aluminum plates subjected to in-plane, mode I, extensional loads and transverse, mode II, bending loads. These results were compared to the results of Iida and Kobayashi for in-plane mode I-mode II extensional loads.
R. Roberts, J. J. Kibler
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Fatigue & Fracture of Engineering Materials & Structures, 1996
Abstract Mode II stable crack extension has been examined for an aircraft grade aluminium alloy D16AT. Both theoretical and experimental results are presented. The experimental observations include load displacement diagrams, plastic wake, crack front tunnelling and scanning electron micrographs of the fracture surfaces.
MOURAD, AHI, MAITI, SK
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Abstract Mode II stable crack extension has been examined for an aircraft grade aluminium alloy D16AT. Both theoretical and experimental results are presented. The experimental observations include load displacement diagrams, plastic wake, crack front tunnelling and scanning electron micrographs of the fracture surfaces.
MOURAD, AHI, MAITI, SK
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Fatigue & Fracture of Engineering Materials & Structures, 1987
Abstract— The fatigue crack growth behavior of small part‐through cracks in 1045 steel and Inconel 718 subjected to biaxial loading has been investigated. Experiments were performed on thin‐wall tubular specimens loaded in tension, torsion and combined tension torsion.
D. F. Socie, C. T. Hua, D. W. Worthem
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Abstract— The fatigue crack growth behavior of small part‐through cracks in 1045 steel and Inconel 718 subjected to biaxial loading has been investigated. Experiments were performed on thin‐wall tubular specimens loaded in tension, torsion and combined tension torsion.
D. F. Socie, C. T. Hua, D. W. Worthem
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Nonlinear crack opening integral: Mode mixity for finite cracks
Engineering Fracture Mechanics, 2017Abstract In this work the incremental energy release rate is analyzed for single-lap adhesive joints by means of the crack closure/opening integral. To this aim, geometrically nonlinear numerical analyses are performed. For nonlinear elastic analyses the relationship between nodal forces and displacements during nodal load reduction generally cannot ...
A. Talmon l’Armée +4 more
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The Significance of Sliding Mode Crack Closure on Mode III Fatigue Crack Growth
1988During Mode III loading, the surfaces of a crack move parallel to each other; friction, abrasion, and mutual support of the contacting parts of the microscopically rough crack faces result. These energy-dissipative processes reduce the effective load at the crack tip, a phenomenon known as “sliding mode crack closure” (SMCC).
EK Tschegg, SE Stanzl
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Mixed-Mode Fatigue Crack Propagation of Penny-Shaped Cracks
Journal of Engineering Materials and Technology, 1993A three-dimensional penny-shaped crack under combined tensile and shear loadings is analyzed. The assumptions of Dugdale are applied to estimate the effects of plasticity around the edge of the crack. The solution for mode I tensile loading is well established within the context of the Dugdale assumptions, and for the case of shear loading, approximate
W. R. Chen, L. M. Keer
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Theoretical and applied fracture mechanics (Print), 2021
For rock engineering in cold regions, rock is often subjected to coupled fatigue damage caused by freeze-thaw (F-T) and stress disturbance. To investigate the cracking propagation and to quantify the degree of damage and the type of crack classification,
Y. Wang, B. Zhang, S. Gao, Cong Li
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For rock engineering in cold regions, rock is often subjected to coupled fatigue damage caused by freeze-thaw (F-T) and stress disturbance. To investigate the cracking propagation and to quantify the degree of damage and the type of crack classification,
Y. Wang, B. Zhang, S. Gao, Cong Li
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Sliding mode crack closure and mode III fatigue crack growth in mild steel
Acta Metallurgica, 1983Abstract 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, 2006Abstract 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, 1989Abstract 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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