Results 221 to 230 of about 30,658 (264)

Mixed-Mode Crack Propagation

2021
Griffith’s instability criterion regards structural configurations with cracks set orthogonally to the direction of the maximum principal stress. In actual fact, this symmetrical mode of applying a load to the defect occurs only in fracture toughness tests, whereas the fractures occurring in structures when they are in service indicate how the ...
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Mode II crack shielding in a compressed rough crack with friction

Theoretical and Applied Fracture Mechanics, 2020
Abstract In this paper, a two-dimensional model to describe the non-planar geometrical features of crack morphologies is presented. The model accounts for frictional tractions along the crack surfaces by considering a rigid-plastic constitutive interface law.
Spagnoli A., Carpinteri A., Terzano M.
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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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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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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 Fatigue Crack Propagation of Penny-Shaped Cracks

Journal of Engineering Materials and Technology, 1993
A 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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The effect of crack geometry on mode shapes of a cracked cantilever beam

Australian Journal of Mechanical Engineering, 2020
Due to the limitations of the manufacturing processes, defect like crack is produced in the structures.
V. Khalkar, K. Logesh
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Crack initiation direction for a crack under mixed-mode loading

International Journal of Fracture, 1995
In this note the relation between the minimum plastic energy density and the crack initiation direction of a mixed-mode crack has been ...
J. H. Kuang, Y. C. Chen
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Stress Trajectories for Mode I and Mode II Cracks

International Journal of Fracture, 2006
Maximum shear stress trajectories are obtained for the mode I and for the mode II crack in an isotropic elastic solid in plane strain.
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Investigations of crack-dislocation interactions ahead of mode-III crack

Materials Science and Engineering: A, 2015
Abstract Transmission electron microscopy was employed to investigate the configuration of dislocations emitted by a sharp crack in Al 1100 and Ni base superalloy in part to understand the role of different stacking fault energies. A dislocation free zone and a plastic zone were observed ahead of the cracks in both cases with different dislocation ...
R. Goswami, C.S. Pande
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