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RISTransient Continuum Mechanics and Chemomechanics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A transient chemomechanical coupling formulation for solid continuum is presented. The second-order rate and the characterized time are introduced to include the transient effect through Taylor expansion. The transient ...
A Fully Coupled Theory and Variational Principle for Thermal–Electrical–Chemical–Mechanical Processes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Thermal–electrical–chemical–mechanical coupling controls the behavior of many transport and electrochemical reactions processes in physical, chemical and biological systems. Hence, advanced understanding of the coupled ...
A Chemomechanical Model for Stress Evolution and Distribution in the Viscoplastic Oxide Scale During Oxidation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Using the locationdependent growth strain, a chemomechanical model is developed for the analysis of the stress evolution and distribution in the viscoplastic oxide scale during hightemperature oxidation. The problem of ...
Analytical Solution for 2D Non Fickian Transient Mass Transfer With Arbitrary Initial and Periodic Boundary Conditions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Twodimensional nonFickian diffusion equation is solved analytically under arbitrary initial condition and two kinds of periodic boundary conditions. The concentration field distributions are analytically obtained with a ...
Flexoelectric Energy Harvesting Using Circular Thin Membranes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this work, we propose a circular membrane-based flexoelectric energy harvester. Different from previously reported nanobeams based flexoelectric energy harvesters, for the flexoelectric membrane, the polarization direction ...
Effect of Flexoelectricity on Band Structures of One Dimensional Phononic Crystals
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: As a sizedependent theory, flexoelectric effect is expected to be prominent at the small scale. In this paper, the band gap structure of elastic wave propagating in a periodically layered nanostructure is calculated by ...
Bernoulli–Euler Dielectric Beam Model Based on Strain Gradient Effect
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The theoretical investigation of the size dependent behavior of a Bernoulli–Euler dielectric nanobeam based on the strain gradient elasticity theory is presented in this paper. The variational principle is utilized to ...
A Three-Dimensional Mixed Finite Element for Flexoelectricity
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Flexoelectric effect is a universal and size-dependent electromechanical coupling between the strain gradient and electric field. The mathematical framework for flexoelectricity, which involves higher-order gradients of ...
Enhancing Responses of Lamb Waves to Bias Electric Fields by Flexoelectricity
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study, responses of Lamb waves to a bias electric field in a nanoplate with the consideration of piezoelectricity, flexoelectricity, and strain gradient elasticity are investigated. First, governing equations and ...
Mixed Finite Elements for Flexoelectric Solids
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Flexoelectricity (FE) refers to the two-way coupling between strain gradients and the electric field in dielectric materials, and is universal compared to piezoelectricity, which is restricted to dielectrics with ...