Results 41 to 50 of about 1,849 (261)

Geometric nonlinear free vibration of axially functionally graded non-uniform beams supported on elastic foundation

open access: yesCurved and Layered Structures, 2016
In the present study non-linear free vibration analysis is performed on a tapered Axially Functionally Graded (AFG) beam resting on an elastic foundation with different boundary conditions.
Lohar Hareram   +2 more
doaj   +1 more source

Vibration and Static Analysis of Functionally Graded Porous Plates [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2017
This research deals with free vibration and static bending of a simply supported functionally graded (FG) plate with the porosity effect. Material properties of the plate which are related to its change are position-dependent.
Şeref Doğuşcan Akbaş
doaj   +1 more source

The Importance of Metal‐Organic Framework Linker Atoms for CO2 Reduction: A DFT Study

open access: yesAdvanced Science, EarlyView.
Using DFT, we examine the role of linker atoms in CO2 reduction on copper‐based metal organic frameworks (Cu MOFs). Our calculations reveal that linker atoms may serve as both CO2 and H‐shuttling sites and suggest linker electrostatics as a descriptor for linker activity. ABSTRACT Although the metal within the secondary building unit of a metal‐organic
Ugochukwu Nwosu, Samira Siahrostami
wiley   +1 more source

Near‐Unity Selectivity Inversion Between CO2 Electroreduction and H2 Evolution via Atomic Coordination Editing

open access: yesAdvanced Science, EarlyView.
Atomic coordination editing functions as an on/off switch that toggles single‐atom catalysts between CO2 electroreduction and hydrogen evolution. ABSTRACT Precise atomic coordination editing of single‐atom catalysts (SACs) provides an effective strategy to tune their electronic structures and catalytic selectivity. Yet, achieving near‐unity selectivity
Yukun Zhao   +11 more
wiley   +1 more source

Free vibration of functionally graded sandwich plates with stiffeners based on the third-order shear deformation theory

open access: yesVietnam Journal of Mechanics, 2016
In this paper, the free vibration of functionally  sandwich grades plates with stiffeners is investigated by using the finite  element method. The material properties are assumed to be graded in the  thickness direction by a power-law distribution ...
Pham Tien Dat   +2 more
doaj   +1 more source

Stability and vibration in civil engineering [PDF]

open access: yesGrađevinski Materijali i Konstrukcije, 2014
Von Kármán theory has been used for the description of the post-buckling behaviour of a thin- walled panel with imperfections and residual stresses.
Ravinger Ján
doaj   +1 more source

Physics‐Informed Neural Network‐Enabled Forward Prediction and Inverse Design of Ring Origami

open access: yesAdvanced Science, EarlyView.
This work presents a KRT‐PINN framework that integrates Kirchhoff rod theory with physics‐informed neural networks for the forward prediction and inverse design of ring origami consisting of closed‐loop rods. The framework predicts stable states of segmented rings with prescribed natural‐curvature profiles and determines the natural‐curvature profiles ...
Luyuan Ning   +3 more
wiley   +1 more source

The Effect of Residual Stress on the Electromechanical Behavior of Electrostatic Microactuators

open access: yesActive and Passive Electronic Components, 2008
This work simulates the nonlinear electromechanical behavior of different electrostatic microactuators. It applies the differential quadrature method, Hamilton's principle, and Wilson-θ integration method to derive the equations of motion of ...
Ming-Hung Hsu
doaj   +1 more source

Halide Perovskite: A Rich Source of Thermal Insulator

open access: yesAdvanced Science, EarlyView.
Halide perovskites exhibit ultralow thermal conductivity driven by intrinsic lattice softness and strong anharmonicity, falling below conventional defect‐engineering limits. Weak metavalent bonding, A‐site rattling, and dynamic octahedral tilting drive phonon scattering to the Ioffe–Regel limit, where wave‐like tunneling replaces particle‐like ...
Haolin Ye   +3 more
wiley   +1 more source

Nonlinear Response of Cantilever Beams to Combination and Subcombination Resonances

open access: yesShock and Vibration, 1998
The nonlinear planar response of cantilever metallic beams to combination parametric and external subcombination resonances is investigated, taking into account the effects of cubic geometric and inertia nonlinearities.
Ali H. Nayfeh, Haider N. Arafat
doaj   +1 more source

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