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Analysis of Mixed-Mode I/II/III Fracture Toughness Based on a Three-Point Bending Sandstone Specimen with an Inclined Crack

open access: yesApplied Sciences, 2021
The crack-propagation form may appear as an arbitrary mixed-mode fracture in an engineering structure due to an irregular internal crack. It is of great significance to research the mixed-mode fracture of materials with cracks.
Xin Pan   +4 more
doaj   +2 more sources

Crack Front Segmentation and Facet Coarsening in Mixed-Mode Fracture [PDF]

open access: yesPhysical Review Letters, 2015
A planar crack generically segments into an array of "daughter cracks" shaped as tilted facets when loaded with both a tensile stress normal to the crack plane (mode I) and a shear stress parallel to the crack front (mode III).
Cambonie, Tristan   +5 more
core   +7 more sources

Crack front segmentation under combined mode I- and mode IIIloading [PDF]

open access: yesFracture and Structural Integrity, 2016
This article approaches the topic of crack initiation and crack growth behaviour under combined mode I- and mode III-loading conditions. Such loading combinations especially lead to a crack, which unscrew out of its initial orientation and segments into ...
A. Eberlein, H. A. Richard
doaj   +4 more sources

Crack mode-changing stress level in porous rocks under polyaxial stress conditions

open access: yesActa Geotechnica, 2023
As the global push towards clean energy intensifies, the demand for critical minerals has driven deep excavation in hard rock formations, posing significant challenges related to rockburst and spalling.
E. Mutaz, M. Serati, D. J. Williams
semanticscholar   +1 more source

A new mixed-mode phase-field model for crack propagation of brittle rock

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2023
Study on crack propagation process of brittle rock is of most significance for cracking-arrest design and cracking-network optimization in rock engineering.
Qiuhua Rao, Chenchen Zhao, Wei Yi
doaj   +1 more source

Fatigue growth rate of inclined surface cracks in aluminum and titanium alloys

open access: yesFracture and Structural Integrity, 2022
In this paper the fatigue crack growth tests were carried out on surface-crack tension (SCT) specimens, made of 7050 and Ti6Al4V alloys, with initial semi-elliptical surface cracks.
R.R. Yarullin, M.M. Yakovlev
doaj   +1 more source

A Numerical Study of Crack Mixed Mode Model in Concrete Material Subjected to Cyclic Loading

open access: yesMaterials, 2023
In quasi-brittle materials such as concrete, numerical methods are frequently used to simulate the crack propagation for monotonic loading. However, further research and action are required to better understand the fracture properties under cyclic ...
Omar Alrayes   +2 more
semanticscholar   +1 more source

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

Effect of loading mode and impact velocity on crack propagation of coal

open access: yesMeikuang Anquan, 2021
In order to study the influence of loading mode and impact velocity on coal crack propagation law, asymmetric semi-circular bend specimens were used to develop test and numerical simulation with multiple impact speeds under three loading modes of mode Ⅰ,
FAN Guowei, SUN Zhuang, SHANG Junning
doaj   +1 more source

Study on Mechanical Properties and Cracking Mode of Coal Samples under Compression–Shear Coupled Load Considering the Effect of Loading Rate

open access: yesApplied Sciences, 2020
Under coupled compression–shear loading, the failure and instability behavior of inclined pillars is different from that of horizontal pillars. To enhance the reliability and accuracy of pillar strength design, the influence of different inclination ...
Yanlong Chen   +5 more
doaj   +1 more source

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