Results 51 to 60 of about 1,849,278 (326)

HOMOGENIZATION IN GRADIENT PLASTICITY

open access: yesMathematical Models and Methods in Applied Sciences, 2011
This paper yields a two-scale homogenization result for a rate-independent elasto-plastic system. The presented model is a generalization of the classical model of linearized elasto-plasticity with hardening, which is extended by a gradient term of the plastic variables.
openaire   +4 more sources

Microstructure Evolution and Mechanical Properties of Austenite Stainless Steel with Gradient Twinned Structure by Surface Mechanical Attrition Treatment

open access: yesNanomaterials, 2021
Gradient structures in engineering materials produce an impressive synergy of strength and plasticity, thereafter, have recently attracted extensive attention in the material families.
Aiying Chen   +4 more
doaj   +1 more source

Localization Analysis of an Energy-Based Fourth-Order Gradient Plasticity Model

open access: yes, 2015
The purpose of this paper is to provide analytical and numerical solutions of the formation and evolution of the localized plastic zone in a uniaxially loaded bar with variable cross-sectional area.
Jirásek, Milan   +2 more
core   +1 more source

Deformation compatibility in a single crystalline Ni superalloy [PDF]

open access: yes, 2015
Deformation in materials is often complex and requires rigorous understanding to predict engineering component lifetime. Experimental understanding of deformation requires utilization of advanced characterization techniques, such as high spatial ...
Britton, T, Dunne, F, Jiang, J, Zhang, T
core   +2 more sources

Gradient plasticity crack tip characterization by means of the extended finite element method [PDF]

open access: yes, 2017
Strain gradient plasticity theories are being widely used for fracture assessment, as they provide a richer description of crack tip fields by incorporating the influence of geometrically necessary dislocations.
E. Mart'inez-Paneda   +2 more
semanticscholar   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

open access: yesFEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Dissipative scale effects in strain-gradient plasticity: the case of simple shear

open access: yes, 2015
We analyze dissipative scale effects within a one-dimensional theory, developed in [L. Anand et al. (2005) J. Mech. Phys. Solids 53], which describes plastic flow in a thin strip undergoing simple shear.
Chiricotto, Maria   +2 more
core   +1 more source

Gradient Plasticity for Single Crystals [PDF]

open access: yesPAMM, 2010
AbstractThe kinematic relationship between classical single crystal kinematics and geometrically necessary dislocations will be clarified by a demonstrative example. The starting point for the dynamics is the contribution of geometrically necessary dislocations to the free energy, which leads to a kinematic hardening law. A simple two‐dimensional shear
Wulfinghoff, S., Böhlke, T.
openaire   +2 more sources

Interannual variation in season length is linked to strong co-gradient plasticity of phenology in a montane annual plant.

open access: yesNew Phytologist, 2019
Species are commonly distributed along latitudinal and elevational gradients of growing season length to which they might respond via phenotypic plasticity and / or adaptive genetic differentiation.
David J. Ensing, C. Eckert
semanticscholar   +1 more source

Exploiting metabolic adaptations to overcome dabrafenib treatment resistance in melanoma cells

open access: yesMolecular Oncology, EarlyView.
We show that dabrafenib‐resistant melanoma cells undergo mitochondrial remodeling, leading to elevated respiration and ROS production balanced by stronger antioxidant defenses. This altered redox state promotes survival despite mitochondrial damage but renders resistant cells highly vulnerable to ROS‐inducing compounds such as PEITC, highlighting redox
Silvia Eller   +17 more
wiley   +1 more source

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