Results 11 to 20 of about 2,257,308 (283)
A continuous/discontinuous Galerkin formulation for a strain gradient-dependent damage model [PDF]
, 2004 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 that involve gradients of the strain field means that the $C^0$ continuity
G. N. Wells +2 more
core +20 more sources
Motion Driven by Strain Gradient Fields. [PDF]
Sci Rep, 2015 A new driving mechanism for direction-controlled motion of nano-scale objects is proposed, based on a model of stretching a graphene strip linked to a rigid base with linear springs of identical stiffness.
Wang C, Chen S.
europepmc +5 more sources
On strain hardening mechanism in gradient nanostructures [PDF]
International Journal of Plasticity, 2017 Experiments have shown that a gradient design, in which grain size spans over four orders of magnitude, can make strong nanomaterials ductile. The enhanced ductility is attributed to the considerable strain hardening capability obtained in the gradient ...
Li, JJ (reprint author), Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Dept Engn Mech, Xian 710129, Shaanxi, Peoples R China. +4 more
core +3 more sources
The Evolution of Strain Gradient and Anisotropy in Gradient-Structured Metal [PDF]
Metallurgical and Materials Transactions A, 2017 Gradient-structured metals have been reported to possess superior mechanical properties, which were attributed to their mechanical heterogeneity. Here we report in-situ observation of the evolution of strain gradient and anisotropy during tensile testing
Zhu, Yuntian +4 more
core +4 more sources
Strain gradients in epitaxial ferroelectrics [PDF]
Physical Review B, 2005 4 pages, 3 embedded figures (1 color ...
Catalan, G. +4 more
openaire +3 more sources
A reformulation of strain gradient plasticity [PDF]
Journal of the Mechanics and Physics of Solids, 2001 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fleck, N. A., Hutchinson, J. W.
openaire +2 more sources
Extraordinary strain hardening by gradient structure [PDF]
Proceedings of the National Academy of Sciences, 2014 Significance Nature creates the gradient structure (GS) for a purpose: to make biological systems strong and tough to survive severe natural forces. For the grain-size GS, the deformation physics is still unclear. One wonders if the grain-size GS in the nanomicroscale would also benefit materials engineered by mankind.
XiaoLei, Wu +4 more
openaire +2 more sources
Cellular Orientation Is Guided by Strain Gradients [PDF]
Integrative Biology, 2016 The strain-induced reorientation response of cyclically stretched cells has been well characterized in uniform strain fields. In the present study, we comprehensively analyse the behaviour of human fibroblasts subjected to a highly non-uniform strain field within a polymethylsiloxane microdevice.
Sophie Chagnon-Lessard +3 more
openaire +2 more sources
Switching a Polar Metal via Strain Gradients [PDF]
Physical Review Letters, 2021 Although rare, spontaneous breakdown of inversion symmetry sometimes occurs in a material which is metallic: these are commonly known as polar metals or ferroelectric metals. Their 'polarization', however, cannot be switched via an electric field, which limits the experimental control over band topology.
Zabalo, Asier, Stengel, Massimiliano
openaire +4 more sources
Strain gradient effects on concrete stress–strain curve [PDF]
Proceedings of the Institution of Civil Engineers - Structures and Buildings, 2012 The stress–strain characteristic of concrete developed in flexure is one of the essential parameters for the ultimate flexural strength design of reinforced concrete (RC) members. Currently, the stress–strain curve of concrete developed in flexure is obtained by scaling down the uniaxial stress–strain curve.
Ho, JCM, Peng, J
openaire +5 more sources