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Crack path dependence on inhomogeneities of material microstructure [PDF]

open access: yesFracture and Structural Integrity, 2012
Crack trajectories under different loading conditions and material microstructural features play animportant role when the conditions of crack initiation and crack growth under fatigue loading have to beevaluated.
Roberto Brighenti   +3 more
doaj   +9 more sources

Fracture morphology and its evolution A review on crack path stability and brittle fracture along butt-weld [PDF]

open access: yesFracture and Structural Integrity, 2015
Considerations are made for the fracture morphology and its evolution in relation to the brittle fracture along butt-weld, where crack path stability may play important roles in various aspects. Analyses of a kinked and curved crack are first reviewed in
Y. Sumi
doaj   +2 more sources

Propagation behavior of two collinear mode Ⅰ cracks driven by explosive gas

open access: yes矿业科学学报, 2023
In smooth pre-splitting blasting, two collinear cracks extending opposite to each other between adjacent holes will first avoid each other and then attract each other, resulting in crack propagation path that often presents hooked or butterfly-shaped ...
Yang Liyun   +3 more
doaj   +1 more source

3D modelling of fatigue crack growth and life predictions using ANSYS

open access: yesAin Shams Engineering Journal, 2022
This study uses ANSYS mechanical APDL 19.2 to predict crack propagation trajectories and fatigue crack growth at constant amplitude loading. Mixed-mode fatigue life assessment is implemented by the Paris law model for different configuration of modified ...
Abdulnaser M. Alshoaibi   +1 more
doaj   +1 more source

Equivalent Stress Intensity Factor: The Consequences of the Lack of a Unique Definition

open access: yesApplied Sciences, 2023
The concept of an equivalent stress intensity factor Keq is used in the study of fatigue crack growth in mixed-mode situations. A problem seldom discussed in the research literature are the consequences of the coexistence of several alternative ...
Sérgio M. O. Tavares   +1 more
doaj   +1 more source

Crack path selection in orientationally ordered composites [PDF]

open access: yesPhysical Review E, 2020
While cracks in isotropic homogeneous materials propagate straight, perpendicularly to the tensile axis, cracks in natural and synthetic composites deflect from a straight path, often increasing the toughness of the material. Here we combine experiments and simulations to identify materials properties that predict whether cracks propagate straight or ...
A. Mesgarnejad   +4 more
openaire   +3 more sources

Non steady-state intersonic cracks in elastomer membranes under large static strain [PDF]

open access: yesJournal of Theoretical, Computational and Applied Mechanics, 2021
Dynamic crack propagation in elastomer membranes is investigated; the focus is laid on cracks reaching the speed of shear waves in the material. The specific experimental setup developed to measure crack speed is presented in details.
Thomas Corre   +3 more
doaj   +1 more source

Fatigue Life Prediction for SiC/Al Materials Based on Path Planning Algorithm Considering Residual Stress

open access: yesChinese Journal of Mechanical Engineering, 2023
To explore the influence of path deflection on crack propagation, a path planning algorithm is presented to calculate the crack growth length. The fatigue crack growth life of metal matrix composites (MMCs) is estimated based on an improved Paris formula.
Wenqian Shang   +3 more
doaj   +1 more source

The Spinodal Decomposition of Ferrite in 2507 Biphasic Stainless Steels: Embrittlement and Possible Toughness Recovery

open access: yesCrystals, 2023
Biphasic stainless steels provide an excellent combination of mechanical and corrosion properties. The occurrence of ferrite spinodal decomposition during processing and heat treatment can induce a dramatic drop in impact energy.
Barbara Rivolta   +4 more
doaj   +1 more source

Hydraulic Fracture Propagation Near the Cavity in a Poroelastic Media

open access: yesApplied Sciences, 2021
In this paper, we investigate the problem of the propagation of hydraulic fractures in a poroelastic medium that has a circular cavity. The research was conducted using the extended finite element method (XFEM) implemented in the ABAQUS software package.
Anton Azarov   +2 more
doaj   +1 more source

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