Results 41 to 50 of about 828,391 (290)
Interfaces within strain gradient plasticity: Theory and experiments [PDF]
Acta Materialia, 2006 In this paper, it is shown'that the occurrence of dislocation pileups across grain boundaries, as well as subsequent emission to the adjacent grains, is captured theoretically by gradient plasticity and confirmed experimentally by nanoindentation. From a theoretical point of view, this is accomplished (within a deformation theory framework applicable ...
Aifantis, K.E. +3 more
openaire +1 more source
Towards a bulk theory of flexoelectricity
, 2010 Flexoelectricity is the linear response of polarization to a strain gradient. Here we address the simplest class of dielectrics, namely elemental cubic crystals, and we prove that therein there is no extrinsic (i.e.
J. D. Jackson +2 more
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A continuous/discontinuous Galerkin formulation for a strain gradient-dependent damage model: 2D results [PDF]
, 2003 The numerical solution of strain gradient-dependent continuum problems has been hindered by continuity demands on the basis functions. The presence of terms in constitutive models which involve gradients of the strain eld means that the $C^0$ continuity
Garikipati, K, Molari, L, Wells, GN
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Quasistatic nonlinear viscoelasticity and gradient flows
, 2014 We consider the equation of motion for one-dimensional nonlinear viscoelasticity of strain-rate type under the assumption that the stored-energy function is $\lambda$-convex, which allows for solid phase transformations.
Ball, John M., Şengül, Yasemin
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Damage process of a fiber bundle with a strain gradient [PDF]
, 2008 We study the damage process of fiber bundles in a wedge-shape geometry which ensures a constant strain gradient. To obtain the wedge geometry we consider the three-point bending of a bar, which is modelled as two rigid blocks glued together by a thin ...
Kun, Ferenc, Nagy, Sandor
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MetalsNi-based superalloys, essential for high-temperature applications, derive strength from coherent second-order precipitates that impede dislocation motion through coherency misfit and elastic mismatch.
Jacob Holmberg-Kasa +2 more
doaj +1 more source
, 2017 Implementation of antiferromagnetic compounds as active elements in spintronics has been hindered by their insensitive nature against external perturbations which causes difficulties in switching among different antiferromagnetic spin configurations ...
Jang, Byung-Kweon +9 more
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Multi-scale model of gradient evolution in turbulent flows [PDF]
, 2006 A multi-scale model for the evolution of the velocity gradient tensor in fully developed turbulence is proposed. The model is based on a coupling between a ``Restricted Euler'' dynamics [{\it P.
Charles Meneveau +4 more
core +2 more sources
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Strain gradient induced polarization in SrTiO3 single crystals
, 2007 Piezoelectricity is inherent only in noncentrosymmetric materials, but a piezoelectric response can also be obtained in centrosymmetric crystals if subjected to inhomogeneous deformation. This phenomenon, known as flexoelectricity, affects the functional
A. Buckley +10 more
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