Results 81 to 90 of about 24,030,268 (309)

MEMS On/off and x2 Optical Switch with Integrated Fiber Alignment Capability [PDF]

open access: yes, 2004
An on/off free space optical switch is described in this paper. The device consists of intersecting cantilevers and is electrostatically actuated.
Cheah, Wei Leow, Mohammad, A .B.
core  

Comparison Between Damping Coefficients of Measured Perforated Micromechanical Test Structures and Compact Models

open access: yes, 2008
Measured damping coefficients of six different perforated micromechanical test structures are compared with damping coefficients given by published compact models.
De Pasquale, Giorgio   +2 more
core   +1 more source

A three‐dimensional micromechanically based model

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, 2017
SummaryGranular materials react with complicated mechanical responses when subjected to external loading paths. This leads to sophisticated constitutive formulations requiring large numbers of parameters. A powerful and straightforward way consists in developing micro‐mechanical models embedding both micro‐scale and meso‐scale. This paper proposes a 3D
Xiong, Hao   +2 more
openaire   +3 more sources

Micromechanical modeling of 8-harness satin weave glass fiber-reinforced composites

open access: yes, 2017
This study introduces a unit cell-based finite element micromechanical model that accounts for correct post cure fabric geometry, in situ material properties and void content within the composite to accurately predict the effective elastic orthotropic ...
R. Choudhry   +4 more
semanticscholar   +1 more source

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

open access: yesAdvanced Functional Materials, EarlyView.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit   +5 more
wiley   +1 more source

Casimir forces on a silicon micromechanical chip

open access: yes, 2012
Quantum fluctuations give rise to van der Waals and Casimir forces that dominate the interaction between electrically neutral objects at sub-micron separations.
A Lambrecht   +30 more
core   +1 more source

Effects of noise on the internal resonance of a nonlinear oscillator [PDF]

open access: yes, 2018
We numerically analyze the response to noise of a system formed by two coupled mechanical oscillators, one of them having Duffing and van der Pol nonlinearities, and being excited by a self-sustaining force proportional to its own velocity.
Zanette, Damian Horacio
core   +1 more source

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi   +3 more
wiley   +1 more source

Modeling of polymer/clay nanocomposites by an iterative micromechanical approach

open access: yesArchives of Mechanics, 2012
An iterative micromechanical method is presented in order to predict the elastic constants of composites and nanocomposites including arbitrarily oriented reinforcement particles.
A. Mohyeddin, A. Fereidoon
doaj   +1 more source

Modeling of the mechanical behavior of fiber-reinforced ceramic composites using finite element method (FEM) [PDF]

open access: yesScience of Sintering, 2014
Modeling of the mechanical behavior of fiber-reinforced ceramic matrix composites (CMC) is presented by the example of Al2O3 fibers in an alumina based matrix. The starting point of the modeling is a substructure (elementary cell) which includes
Dimitrijević M.M.   +5 more
doaj   +1 more source

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