Heterogeneous materials: a new class of materials with unprecedented mechanical properties
Materials Research Letters, 2017 Here we present a perspective on heterogeneous materials, a new class of materials possessing superior combinations of strength and ductility that are not accessible to their homogeneous counterparts.
Xiaolei Wu, Yuntian Zhu
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Numerical Study of Microbeam with Geometric Discontinuity Under Electrostatic Load using Strain Gradient Theory [PDF]
International Journal of Advanced Design and Manufacturing Technology, 2020 In this work, the pull in analysis of microbeam with geometric discontinuity for two different boundary conditions has been investigated. Boundary conditions are considered as Clamped-Free (CF) and Clamped-Clamped (CC).
Hadi Hamidizadeh +2 more
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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 of a gradient-structured metal.
Xiaolei Wu +4 more
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Meshless Computational Strategy for Higher Order Strain Gradient Plate Models
Mathematical and Computational Applications, 2022 The present research focuses on the use of a meshless method for the solution of nanoplates by considering strain gradient thin plate theory. Unlike the most common finite element method, meshless methods do not rely on a domain decomposition.
Francesco Fabbrocino +4 more
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Are granular materials simple? An experimental study of strain gradient effects and localization [PDF]
Mechanics of Materials, 37(5), 607-627, 2005, 2019 Experiments test the dependence of shearing stress on the first two gradients of shear strain. The tests were conducted by direct numerical simulation using the Discrete Element Method (DEM) on a large two-dimensional (2D) assembly of circular disks.
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Gradient Photonic Materials Based on One‐Dimensional Polymer Photonic Crystals [PDF]
, 2020 In nature, animals such as chameleons are well‐known for the complex color patterns of their skin and the ability to adapt and change the color by manipulating sophisticated photonic crystal systems. Artificial gradient photonic materials are inspired by
Howell, Irene +3 more
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A Note on Reduced Strain Gradient Elasticity [PDF]
, 2018 We discuss the particular class of strain-gradient elastic material models which we called the reduced or degenerated strain-gradient elasticity. For this class the strain energy density depends on functions which have different differential properties in different spatial directions.
Eremeyev V. A., dell'Isola F.
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Measurement of Gradient Strain Fields with Fiber-Optic Sensors
Sensors, 2022 The results of measuring gradient strain fields by embedded or mounted point fiber-optic sensors based on Bragg gratings and distributed fiber-optic sensors based on Rayleigh scattering are discussed.
Valerii Matveenko +3 more
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Geometrical statistics and vortex structures in helical and nonhelical turbulences [PDF]
, 2010 In this paper we conduct an analysis of the geometrical and vortical statistics in the small scales of helical and nonhelical turbulences generated with direct numerical simulations.
Gulitski G. +3 more
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Effect of density step on stirring properties of a strain flow [PDF]
Fluid Dynamics Research, IOP Publishing, 2009, 41, pp.035508, 2016 The influence of steep density gradient upon stirring properties of a strain flow is addressed by considering the problem in which an interface separating two regions with different constant densities is stabilised within a stagnation-point flow. The existence of an analytic solution for the two-dimensional incompressible flow field allows the exact ...
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