Fatigue Behavior of Additively Manufactured IN718 with Columnar Grains
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Engineering Materials"
DOI: 10.1002/adem.202001031
Abstract: Fatigue failure of polycrystalline materials is often dominated by crack initiation processes, which are strongly influenced by salient features existing in the microstructure. Herein, a crystal plasticity framework based on the finite element method is… read more here.
Keywords: fatigue behavior; crack nucleation; columnar; fatigue crack ... See more keywords
Influence of elastic wave on crack nucleation – Experimental and computational investigation of brittle fracture
Sign Up to like & getrecommendations! Published in 2017 at "Applied Acoustics"
DOI: 10.1016/j.apacoust.2017.04.019
Abstract: Abstract Understanding the phenomenon of fracture is very important for many industrial applications. Numerical tools are needed to describe the crack pattern and the energies evolution in any specimen. Then, for example, the acoustic properties… read more here.
Keywords: crack nucleation; fracture; phase field; brittle fracture ... See more keywords
The effect of grain boundary structures on crack nucleation in nickel nanolaminated structure: A molecular dynamics study
Sign Up to like & getrecommendations! Published in 2021 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2020.110019
Abstract: Abstract Molecular dynamics (MD) simulations were performed to explore the structures, energies and tensile properties of grain boundaries (GBs) as well as crack nucleation in nickel nanolaminated (Ni NL) structures. Four typical textures observed in… read more here.
Keywords: angle; crack nucleation; nucleation nickel; molecular dynamics ... See more keywords
Crack nucleation and growth during dynamic indentation of chemically-strengthened glass
Sign Up to like & getrecommendations! Published in 2020 at "Extreme Mechanics Letters"
DOI: 10.1016/j.eml.2020.100754
Abstract: Abstract Dynamic point impact loading is a primary cause of fracture of glass screens on mobile devices. An improved understanding of crack initiation and evolution under high-speed indentation could contribute to the development of materials… read more here.
Keywords: strengthened glass; dynamic indentation; chemically strengthened; crack nucleation ... See more keywords
Microstructurally-sensitive fatigue crack nucleation in Ni-based single and oligo crystals
Sign Up to like & getrecommendations! Published in 2017 at "Journal of The Mechanics and Physics of Solids"
DOI: 10.1016/j.jmps.2017.05.012
Abstract: Abstract An integrated experimental, characterisation and computational crystal plasticity study of cyclic plastic beam loading has been carried out for nickel single crystal (CMSX4) and oligocrystal (MAR002) alloys in order to assess quantitatively the mechanistic… read more here.
Keywords: fatigue crack; microstructurally sensitive; crack; crack nucleation ... See more keywords
Crystallography and elastic anisotropy in fatigue crack nucleation at nickel alloy twin boundaries
Sign Up to like & getrecommendations! Published in 2021 at "Journal of The Mechanics and Physics of Solids"
DOI: 10.1016/j.jmps.2021.104538
Abstract: Abstract Fatigue crack nucleation at annealing twin boundaries (TBs) within polycrystal nickel-based superalloy Rene 88 D T is investigated with a microstructure-sensitive crystal plasticity (CP) model, digital image correlation strain measurements and experimental SEM crack… read more here.
Keywords: fatigue crack; nucleation; elastic anisotropy; crack nucleation ... See more keywords
Experimentally validated dwell and cyclic fatigue crack nucleation model for α–titanium alloys
Sign Up to like & getrecommendations! Published in 2017 at "Scripta Materialia"
DOI: 10.1016/j.scriptamat.2016.08.031
Abstract: Abstract This paper develops an experimentally calibrated and validated crystal plasticity finite element model with a probabilistic crack nucleation model for predicting dwell and cyclic fatigue crack nucleation in polycrystalline microstructures of titanium or Ti… read more here.
Keywords: crack nucleation; nucleation model; model; dwell cyclic ... See more keywords
Crack nucleation in brittle and quasi-brittle materials: A peridynamic analysis
Sign Up to like & getrecommendations! Published in 2020 at "Theoretical and Applied Fracture Mechanics"
DOI: 10.1016/j.tafmec.2020.102855
Abstract: Abstract Peridynamic (PD) models of bodies without pre-cracks, based on a single fracture parameter (associated with the critical fracture energy), produce different strengths when different horizon sizes are used to simulate crack nucleation under quasi-static… read more here.
Keywords: crack nucleation; model; fracture; quasi brittle ... See more keywords
Fretting fatigue crack nucleation: A review
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DOI: 10.1016/j.triboint.2018.01.029
Abstract: Abstract This study aims to provide an overview of numerical and experimental work, related to crack nucleation under fretting fatigue conditions. In fretting fatigue, multiaxial loads and severe stress gradients are present at the contact… read more here.
Keywords: fatigue crack; work; crack nucleation; nucleation ... See more keywords
Microstructure analysis and crack nucleation in TWIP steel tube at expansive deformation
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DOI: 10.1088/2053-1591/ac386c
Abstract: The expansion test of twinning induced plastic (TWIP) steel tube was carried out at room temperature. Cracks appeared inside the tube edge when TWIP steel tube expands by 15.6%. The microstructure evolution, deformation mechanism and… read more here.
Keywords: crack nucleation; steel tube; twip steel; steel ... See more keywords
Geometrically Nonlinear Field Fracture Mechanics and Crack Nucleation, Application to Strain Localization Fields in Al-Cu-Li Aerospace Alloys
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DOI: 10.3390/ma11040498
Abstract: The displacement discontinuity arising between crack surfaces is assigned to smooth densities of crystal defects referred to as disconnections, through the incompatibility of the distortion tensor. In a dual way, the disconnections are defined as… read more here.
Keywords: strain localization; mechanics; crack nucleation;