Journal of Nanomechanics and Micromechanics: Recent submissions
Now showing items 81-100 of 116
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Size-Dependent Thermomechanical Responses of Nano-Sized Multilayers
(American Society of Civil Engineers, 2015)The mechanical behavior of materials/structures at nanoscales has been shown, either experimentally or numerically, to be size-dependent. An accurate analysis of a nano-sized multilayer film/substrate structure subject to ... -
Modified Nonlocal Mindlin Plate Theory for Buckling Analysis of Nanoplates
(American Society of Civil Engineers, 2014)This article presents a modified nonlocal Mindlin plate theory for stability analysis of nanoplates subjected to both uniaxial and biaxial in-plane loadings. Closed-form solutions of buckling load are presented according ... -
Mechanical Buckling of Thick Composite Plates Reinforced with Randomly Oriented, Straight, Single-Walled Carbon Nanotubes Resting on an Elastic Foundation using the Finite Strip Method
(American Society of Civil Engineers, 2013)This paper is devoted to the mechanical buckling analysis of thick composite plates under straight single-walled carbon nanotubes reinforcement with uniform distribution and random orientations resting on an elastic ... -
Dynamic Viscoelastic Behavior of Multiwalled Carbon Nanotube–Reinforced Magnetorheological (MR) Nanocomposites
(American Society of Civil Engineers, 2014)This paper introduces a novel class of three-phase magnetorheological (MR) nanocomposites reinforced with multiwalled carbon nanotubes. Microstructures of the nanocomposites are characterized with the scanning electron ... -
Fractal Geometric Characterization of Functionally Graded Materials
(American Society of Civil Engineers, 2013)The complex structure and mechanics of elastoplastic functionally graded materials (FGM) is studied from the standpoint of fractal geometry. First, upon introducing the fineness as the number of grains of either phase ... -
Lyophobic and Magnetized MWCNTs-Based Nanofluidic System: High-Performance Damping Structure
(American Society of Civil Engineers, 2013)A high-performance damping structure was developed with lyophobic and magnetized multiwalled carbon nanotubes (MWCNTs)–based nanoporous composite and high surface tension liquids. The MWCNTs were surface treated by long-chain ... -
Size-Dependent Fracture Toughness of Nanoscale Structures: Crack-Tip Stress Approach in Molecular Dynamics
(American Society of Civil Engineers, 2014)By adopting the local virial stress, the authors overcome the barrier of ambiguous crack-tip stress field in molecular dynamics (MD) simulations and perform direct calculations of fracture toughness. Both MD and corresponding ... -
Mechanical Energy Absorption Characteristics of Hollow and Water-Filled Carbon Nanotubes upon Low-Speed Crushing
(American Society of Civil Engineers, 2012)Using molecular dynamics simulations, the prospects are explored of using bundles, forests, and single carbon nanotubes (CNTs) for absorbing mechanical energies upon crushing. In particular, the deformation and energy ... -
Correlating Micromorphology and Nanomorphology to High Strain Rate Performance of Nanoparticle Reinforced Polymeric Materials
(American Society of Civil Engineers, 2012)This paper focuses on correlating micromorphology and nanomorphology to the performance of nano-enhanced polymers subjected to blast loading, studying the behavior of these materials at high strain rates, and evaluating ... -
Fundamental Characterization of Asphalt Clay Nanocomposites
(American Society of Civil Engineers, 2013)This study aims at characterizing the nanostructure and microstructure and the mechanical behavior of asphalt clay nanocomposites. To this end, various atomic force microscopy (AFM) techniques (i.e., tapping mode imaging, ... -
Finite-Element Modeling of Circular Nanoplates
(American Society of Civil Engineers, 2013)A finite-element method for static and free vibration analysis of axisymmetric circular nanoscale plates is presented based on the Gurtin-Murdoch continuum theory accounting for surface energy. Explicit solutions for ... -
Multiscale Modeling of Inclusions and Precipitation Hardening in Metal Matrix Composites: Application to Advanced High-Strength Steels
(American Society of Civil Engineers, 2013)The strengthening effect of precipitates in metals is investigated within a multiscale approach that utilizes models of various length scales; namely, molecular mechanics (MM), discrete dislocation dynamics (DD), and an ... -
Thermal Buckling Behavior of Nanobeams Using an Efficient Higher-Order Nonlocal Beam Theory
(American Society of Civil Engineers, 2013)This paper presents an efficient higher-order nonlocal beam theory for the thermal buckling of nanobeams. The displacement field is chosen based on assumptions that the in-plane and transverse displacements consist of ... -
Materials Genome for Graphene-Cement Nanocomposites
(American Society of Civil Engineers, 2013)Graphene nanoplatelets have unique mechanical, thermal, and electrical properties that render them ideal reinforcing materials. The attractive properties of graphene have led to intensive research on graphene-polymer ... -
Ab Initio Study of Coupling between Electronic and Phononic Contribution to Stress-Dependent Thermal Conductivity of Au, Si, and SiC
(American Society of Civil Engineers, 2012)This work presents an understanding of strain-thermal conductivity correlation in a metal (Au), in a semiconductor (Si), and in a ceramic (SiC) using ab initio density functional theory and utilizing a modified nonequilibrium ... -
Role of Dislocation Density on the Sample-Size Effect in Nanoscale Plastic Yielding
(American Society of Civil Engineers, 2012)The sample-size dependence of plastic yielding in nanoscale metal pillars is not a purely geometrical fact, explainable just in terms of shape and geometry of the pillar, but depends on the actual content of inner dislocations. ... -
Dimensionless Analysis of Carbon Nanotube Oscillators: Design Aspects
(American Society of Civil Engineers, 2013)In the past decade, gigahertz nano-oscillators have attracted much attention. Of particular interest are nested carbon nanotubes with telescopic movements. Recent work on this type of oscillator has led to new results and ... -
Thermal and Mechanical Responses of BCC Metals to the Fast-Transient Process in Small Volumes
(American Society of Civil Engineers, 2012)Plasticity in heterogeneous metallic materials with small volumes is governed by the interactions of dislocations within the bulk. Energy (heat) transfer, on the other hand, is micromechanically related to the interaction ... -
Effects of Dwell Time and Loading Rate on the Nanoindentation Behavior of Asphaltic Materials
(American Society of Civil Engineers, 2013)In a nanoindentation test, a test sample is indented or loaded by an intender tip and then unloaded, and the load-displacement data are recorded. Load-displacement data are then analyzed using a common method to determine ... -
Modeling Carbon Nanotube Reinforced Composite Materials
(American Society of Civil Engineers, 2012)Micromechanics modeling is employed to characterize the mechanical behavior of a transversely isotropic, isothermal material system of a hollow carbon nanotube embedded in a polymeric matrix. The characterization yields ...