Results 11 to 20 of about 2,476,755 (297)

Strong embedded discontinuities for simulating fracture in quasi-brittle materials [PDF]

open access: yes, 2011
In this paper embedded strong discontinuities are used to model discrete cracking in materials like concrete. In the approach followed a discontinuous displacement field is considered and the deformation is localized at a surface of zero width.

core   +9 more sources

Perturbation of mode III interfacial cracks [PDF]

open access: yesInternational Journal of Fracture, 2010
We consider the perturbation problem of a Mode III interfacial crack. The perturbation is of geometrical type and can be both perturbation of the crack faces and perturbation of the interface, which can deviate from the initial straight line configuration.
Piccolroaz, A, Mishuris, G, Movchan, AB
openaire   +4 more sources

Mode Localization of a Cracked Blade-Disks [PDF]

open access: yesVolume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education, 1998
In this paper, the effect of blade crack on the mode localization of a rotating blade-disk is studied. Pretwisted taper beams are used to simulate blades of a blade-disk. The crack on the blade can be regarded as a local disorder of this periodically coupled blades system.
J. H. Kuang, B. W. Huang
openaire   +1 more source

Crack kinking at the tip of a mode I crack in an orthotropic solid [PDF]

open access: yesInternational Journal of Fracture, 2017
The competition between crack penetration and crack kinking is addressed for a mode I macroscopic crack in an orthotropic elastic solid. Cohesive zones of finite peak strength and finite toughness are placed directly ahead of and orthogonal to the plane of the parent crack.
Tankasala, Harika C   +2 more
openaire   +2 more sources

Mixed Mode Crack Propagation in Iliac Bone [PDF]

open access: yesAnalele Universitatii "Ovidius" Constanta - Seria Matematica, 2021
Abstract Bone is a complex material that can be regarded as an anisotropic elastic composite material. The problem of crack propagation in human bone is analyzed by using a generalization of the maximum tensile stress criterion (MTS). The results concern the critical stress for crack propagation and the direction of the crack path in ...
Baesu, E.   +3 more
openaire   +2 more sources

A numerical study of crack shielding and deflection under extensive plasticity [PDF]

open access: yes, 2009
Experimentally observed crack deflection events in multi-layered material systems, occurring even under pure mode-I loading, are here simulated and explained through elasto-plastic finite element modelling.
Reed, Philippa A.S.   +2 more
core   +1 more source

The Effect of Temperature and Heating–Cooling Cycles on Mode I, Mode II and Mixed-Mode I-II Fracture Toughness of Sandstone [PDF]

open access: yesMuhandisī-i manābi̒-i ma̒danī, 2021
In the case of explosions and fires, the rocks undergo a cycle of heating and cooling. For that, first, they are exposed to considerable heat and then cooled after extinguishing the fire.
Sh. Latifi, M. Hosseini, M. Mahdikhani
doaj   +1 more source

Crack detection of a beam-like bridge using 3D mode shapes

open access: yesVietnam Journal of Mechanics, 2014
In this paper, mode shapes of a 3D cracked beam with a rectangular cross section are analyzed for crack detection. The influence of coupling mechanism between horizontal and vertical bending vibrations due to the 3D crack model on the mode shapes is ...
Nguyen Viet Khoa
doaj   +1 more source

Effects of stitching on delamination of satin weave carbon-epoxy laminates under mode I, mode II and mixed-mode I/II loadings [PDF]

open access: yes, 2010
The objective of the present study is to characterize the effect of modified chain stitching on the delamination growth under mixed-mode I/II loading conditions.
Trabelsi, Walid   +2 more
core   +1 more source

On the connection between mode II and mode III effective thresholds in metals [PDF]

open access: yesFracture and Structural Integrity, 2017
Closure-free long cracks under the remote mode III loading grow in a more complicated way than those under the remote mode II. For bcc metals, a coplanar in-plane spreading of tongues driven by the local mode II loading components at crack-front ...
Tomas Vojtek   +2 more
doaj   +2 more sources

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