Effect of special rotational deformation on the dislocation emission from a branched crack tip in deformed nanocrystalline materials
Sign Up to like & getrecommendations! Published in 2017 at "Acta Mechanica"
DOI: 10.1007/s00707-016-1742-y
Abstract: The problem of the special rotational deformation interacting with an internal crack is studied by developing a theoretical model of deformed nanocrystalline materials. Using the complex variable method of Muskhelishvili and the conformal mapping technique,… read more here.
Keywords: branched crack; crack tip; special rotational; crack ... See more keywords
Functional grading of IPN parts: plates with single and multiple cracks
Sign Up to like & getrecommendations! Published in 2017 at "Acta Mechanica"
DOI: 10.1007/s00707-017-1911-7
Abstract: Functional grading (FG) around the crack tip is studied to improve the load capacity in parts made of graded interpenetrating polymer networks (IPN). To calculate the capacity, the stress intensity factor at the crack tip… read more here.
Keywords: grading ipn; around crack; crack tip; ipn parts ... See more keywords
In-situ microscopy testing of plasticity variation ahead of fatigue crack tip in AL2024-T3
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Fracture"
DOI: 10.1007/s10704-018-00340-y
Abstract: In this paper, an in-situ experiment is performed under the optical microscopy to investigate the continuous variation of the strain field in the vicinity of the fatigue crack tip in Al2024-T3. The specimen is a… read more here.
Keywords: fatigue crack; variation; microscopy; crack tip ... See more keywords
On fatigue crack growth in plastically compressible hardening and hardening–softening–hardening solids using crack-tip blunting
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Fracture"
DOI: 10.1007/s10704-018-0310-y
Abstract: In the present study, mode I crack subjected to cyclic loading has been investigated for plastically compressible hardening and hardening–softening–hardening solids using the crack tip blunting model where we assume that the crack tip blunts… read more here.
Keywords: softening hardening; hardening hardening; crack tip; hardening softening ... See more keywords
Plastic Zones at a Fatigue Crack Tip
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Failure Analysis and Prevention"
DOI: 10.1007/s11668-019-00646-6
Abstract: Nanoindentation measurements are carried out in the fatigue plastic zone in the 2024 T351 alloy. It is shown that variations in hardness, plastic work and plasticity index show typical evolution permitting the identification of cyclic… read more here.
Keywords: plastic; fatigue crack; crack tip; zones fatigue ... See more keywords
Local lattice instability analysis on mode I crack tip in hcp-Mg: Unstable mode for crack propagation vs. dislocation emission
Sign Up to like & getrecommendations! Published in 2017 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2017.02.004
Abstract: Abstract As a series study discussing local deformation by the atomic elastic stiffness, B ij α = Δ σ i α / Δ e j , various molecular dynamics simulations are performed on the basal,… read more here.
Keywords: crack tip; mode crack; dislocation emission; crack ... See more keywords
Local lattice instability analysis on mode I crack tip in β-SiC: Characteristics in binary covalent crystal
Sign Up to like & getrecommendations! Published in 2018 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2018.01.047
Abstract: Abstract Local lattice instability analysis based on the atomic elastic stiffness (AES), B ij α = Δ σ i α / Δ e j ( i , j = 1 – 6 in Voigt notation),… read more here.
Keywords: local lattice; instability analysis; crack tip; lattice instability ... See more keywords
Hydrogen-induced cracking of an aluminum single crystal: An atomistic simulation
Sign Up to like & getrecommendations! Published in 2019 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2019.109084
Abstract: Abstract The purpose of this paper is to examine the effect of hydrogen on the crack tip mechanism of an Al single crystal. A ( 121 ) [ 1 1 ¯ 1 ] (plane/front) crack… read more here.
Keywords: single crystal; crack; hydrogen; crack tip ... See more keywords
Analysis of monotonic and cyclic crack tip plasticity for a stationary crack tip in a FCC crystal
Sign Up to like & getrecommendations! Published in 2022 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2021.110954
Abstract: Abstract The fields produced at the tip of a Mode I crack in a ductile single crystal have been previously investigated using theoretical, experimental, and numerical methods. Limitations in the material model complexity used in… read more here.
Keywords: tip plasticity; crack; crack tip; model ... See more keywords
Hydrogen embrittlement of 718 under cathodic polarization
Sign Up to like & getrecommendations! Published in 2020 at "Corrosion Science"
DOI: 10.1016/j.corsci.2019.108361
Abstract: Abstract High strength nickel based alloys are extensively used in both O&G and Navy applications. 718 is one of the most commonly used alloys in these applications. Applied cathodic potential had a significant effect on… read more here.
Keywords: 718 cathodic; cathodic polarization; polarization; crack tip ... See more keywords
Crack tip stress based kinetic fracture model of a PVA dual-crosslink hydrogel
Sign Up to like & getrecommendations! Published in 2019 at "Extreme Mechanics Letters"
DOI: 10.1016/j.eml.2019.100457
Abstract: Abstract The Mode I fracture of a dual-crosslink hydrogel under creep and constant stretch rate loading is investigated experimentally. The hydrogel network contains both permanent, or chemical, bonds and transient, or physical bonds that are… read more here.
Keywords: crosslink hydrogel; fracture; tip stress; dual crosslink ... See more keywords