Interaction of the Portevin–Le Chatelier phenomenon with ductile fracture of a thin aluminum CT specimen: experiments and simulations
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Fracture"
DOI: 10.1007/s10704-017-0203-5
Abstract: An attempt is made here to capture numerically slant ductile fracture and its early slant strain precursors via combining a dynamic strain aging (DSA) model with ductile damage models. In recent experimental studies it has… read more here.
Keywords: fracture; strain localization; ductile fracture; model ... See more keywords
On the description of ductile fracture in metals by the strain localization theory
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Fracture"
DOI: 10.1007/s10704-017-0236-9
Abstract: Numerical simulations based on the bifurcation and imperfection versions of the strain localization theory are used in this paper to predict the failure loci of metals and applied to an advanced high strength steel subjected… read more here.
Keywords: fracture; strain localization; localization theory; description ductile ... See more keywords
Revisiting the first Sandia Fracture Challenge with transient deformation heating and strain localization considerations
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Fracture"
DOI: 10.1007/s10704-020-00487-7
Abstract: Here, we present a systematic experimental study and accompanying theoretical analysis of the dependence of ductile fracture on strain localization, strain hardening rates, deformation-induced thermal softening, and transient heat conduction under spatially uniform as well… read more here.
Keywords: fracture; strain localization; hardening rates; deformation ... See more keywords
Studying Strain Localization in Brittle Materials during the Brazilian Test
Sign Up to like & getrecommendations! Published in 2020 at "Russian Physics Journal"
DOI: 10.1007/s11182-020-02126-z
Abstract: Sintered yttrium-stabilized zirconia is numerically and experimentally investigated during the Brazilian test. The strain and fracture of homogeneous and inhomogeneous cylindrical specimens under diametral compression are numerically simulated within the framework of mechanics of continuum… read more here.
Keywords: brazilian test; strain localization; localization; mechanics ... See more keywords
Measurement of Strain Localization Resulting from Monotonic and Cyclic Loading at 650 ∘C in Nickel Base Superalloys
Sign Up to like & getrecommendations! Published in 2017 at "Experimental Mechanics"
DOI: 10.1007/s11340-017-0286-y
Abstract: A methodology is presented for the use of the oxide scale that develops in polycrystalline Ni-base superalloys at service temperature, as a speckle pattern for μm-scale resolution strain measurements. Quantitative assessment of the heterogeneous strain… read more here.
Keywords: strain; strain localization; base superalloys; monotonic cyclic ... See more keywords
Numerical technique for strain localization analysis considering a Cartesian parameterization
Sign Up to like & getrecommendations! Published in 2020 at "Journal of the Brazilian Society of Mechanical Sciences and Engineering"
DOI: 10.1007/s40430-020-2230-9
Abstract: This paper presents a numerical technique for strain localization analysis in nonlinear material models considering a Cartesian parameterization. As a result of material’s natural heterogeneity, degradation often occurs in a small and weaker portion of… read more here.
Keywords: strain localization; localization; localization analysis; parameterization ... See more keywords
Influence of hydrogen on strain localization and fracture behavior in Al-Zn-Mg-Cu aluminum alloys
Sign Up to like & getrecommendations! Published in 2018 at "Acta Materialia"
DOI: 10.1016/j.actamat.2018.08.024
Abstract: Abstract Hydrogen-induced dislocation motion is characterized in terms of the microscopic strain distribution in Al Zn Mg Cu aluminum alloys. Hydrogen-induced strain localization was visualized in 3D using X-ray tomography and related microstructural tracking techniques.… read more here.
Keywords: strain localization; aluminum alloys; nano voids; hydrogen ... See more keywords
The role of viscous regularization in dynamical problems, strain localization and mesh dependency
Sign Up to like & getrecommendations! Published in 2022 at "Computer Methods in Applied Mechanics and Engineering"
DOI: 10.1016/j.cma.2021.114185
Abstract: In this paper we revisit the elasto-viscoplastic, strain-softening, strain-rate hardening, model as a means to avoid strain localization on a mathematical plane in the case of a Cauchy continuum. In contrast to the work of… read more here.
Keywords: regularization dynamical; role viscous; viscous regularization; strain localization ... See more keywords
Strain localization and dynamic recrystallization in polycrystalline metals: Thermodynamic theory and simulation framework
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Plasticity"
DOI: 10.1016/j.ijplas.2019.03.005
Abstract: Abstract We describe a theoretical and computational framework for adiabatic shear banding (ASB) and dynamic recrystallization (DRX) in polycrystalline materials. The Langer-Bouchbinder-Lookman (LBL) thermodynamic theory of polycrystalline plasticity, which we recently reformulated to describe DRX… read more here.
Keywords: framework; drx; strain localization; polycrystalline ... See more keywords
Strain localization in copper canister FSW welds for spent nuclear fuel disposal
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Nuclear Materials"
DOI: 10.1016/j.jnucmat.2019.06.024
Abstract: Abstract Spent nuclear fuel disposal in copper canisters in a deep geologic repository is planned in Finland and Sweden. The purpose of the copper shell is to perform as a ductile corrosion barrier to prevent… read more here.
Keywords: copper; spent nuclear; strain localization; nuclear fuel ... See more keywords
Strain localization and evolving kinematic efficiency of initiating strike-slip faults within wet kaolin experiments
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Structural Geology"
DOI: 10.1016/j.jsg.2017.06.011
Abstract: Abstract Using wet kaolin experiments, we document the evolution of strain localization during strike-slip fault maturation under variable boundary conditions (pre-existing fault, depth of and distribution of basal shear). While the nature of the basal… read more here.
Keywords: fault; strain localization; slip; kinematic efficiency ... See more keywords