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Beyond-Classical Ferroelectric Metamaterials: 3D-Printed Planar Lattices With Programmable Electro-Thermo-Mechanical Coupling. [PDF]

open access: yesAdv Sci (Weinh)
Planar ferroelectric lattices with rationally‐tailored topology and polarization achieve programmable piezoelectric and pyroelectric properties. Analytical modeling, homogenization, and experiments collectively demonstrate enhanced and tunable longitudinal, transverse, and shear piezoelectric responses, together with substantially improved ...
Shi J   +6 more
europepmc   +2 more sources

Two-scale convergence analysis and numerical simulation for periodic Kirchhoff plates [PDF]

open access: yesHeliyon
Homogenization analysis methods provide a high-efficiency tool to address periodic structures. However, the popular Asymptotic Homogenization Method (AHM) cannot be directly applied to the homogenization of periodic plate structures due to less ...
Zhiwei Huang   +3 more
doaj   +2 more sources

Evidence for Reductions in Fungal Richness and Beta Diversity Dispersion Associated With Impervious Surfaces in California. [PDF]

open access: yesEcol Evol
Using public fungal occurrence data archived on the Global Biodiversity information facility, and impervious land cover maps from the National Land Cover Database, we were able to demonstrate that impervious cover has a significant influence on the diversity on fungal assemblages. These effects include a reduction in saprotrophic fungal richness, and a
Simons AL   +3 more
europepmc   +2 more sources

A Comparative Analysis of AEH (Asymptotic Expansion Homogenization) Results and Experimental Findings of Various Additive Manufactured Lattice Structures [PDF]

open access: yes한국정밀공학회지, 2023
Recently, the demand for lightweight open-pore lattice structures with specific stiffness is increasing in many fields, such as the aeronautical, automotive, mechanical and bone tissue engineering sectors.
Rigoberto Lopez Reyes   +2 more
doaj   +1 more source

An energy approach to asymptotic, higher-order, linear homogenization [PDF]

open access: yesJournal of Theoretical, Computational and Applied Mechanics, 2023
A higher-order homogenization method for linear elastic structures is proposed. While most existing approaches to homogenization start from the equations of equilibrium, the proposed one works at the energy level.
Basile Audoly, Claire Lestringant
doaj   +1 more source

Modeling the edge effect in composites based on asymptotic homogenization method [PDF]

open access: yesE3S Web of Conferences, 2023
The purpose of this work is to develop a numerical algorithm for solving the problem of calculating the stress-strain state of structures made of composite materials, taking into account edge effects.
Dimitrienko Yu., Yurin Yu., Chebakov D.
doaj   +1 more source

Modeling of effective elastic-plastic properties of layered composites with a periodic structure in the framework of the anisotropic flow theory [PDF]

open access: yesE3S Web of Conferences, 2023
The article is devoted to the development of a method for constructing theoretical strain diagrams. The method is based on the use of a model of effective constitutive relations for approximating the deformation diagrams of layered composites obtained ...
Dimitrienko Yu.   +2 more
doaj   +1 more source

Asymptotic Solution for a Visco-Elastic Thin Plate: Quasistatic and Dynamic Cases

open access: yesMathematics, 2023
The Kelvin–Voigt model for a thin stratified two-dimensional visco-elastic strip is analyzed both in the quasistatic and in the dynamic cases. The Neumann boundary conditions on the upper and the lower parts of the boundary and periodicity conditions ...
Grigory Panasenko, Ruxandra Stavre
doaj   +1 more source

On the Influence of Initial Stresses on the Velocity of Elastic Waves in Composites

open access: yesComputation, 2023
The paper is devoted to the problem of propagation of elastic waves in composites with initial stresses. We suppose initial stresses are well within the elastic regime. We deal with the long-wave case and use the asymptotic homogenization technique based
Alexander G. Kolpakov   +2 more
doaj   +1 more source

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