Journal of Nanomechanics and Micromechanics: Recent submissions
Now showing items 101-116 of 116
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Mechanical Properties of Nanocomposite Cement Incorporating Surface-Treated and Untreated Carbon Nanotubes and Carbon Nanofibers
(American Society of Civil Engineers, 2012)To study the effects of functionalized carbon nanotubes (CNTs) and carbon nanofibers (CNFs) on the mechanical properties of cement composites, both untreated and treated CNFs and CNTs were added to cement paste in ... -
Mechanics of SWCNT Aggregates Studied by Incremental Constrained Minimization
(American Society of Civil Engineers, 2012)The stress-strain behavior of short single-walled carbon nanotube (SWCNT) aggregates is investigated by a novel incremental constrained minimization approach. An AIREBO potential is used to model the interactions within ... -
Heat Wave Driven by Nanoscale Mechanical Impact between C60 and Graphene
(American Society of Civil Engineers, 2012)This paper presents a novel physical phenomenon—heat wave propagation—at the atomic scale by investigating the collision of -
Mechanics of Nano-Honeycomb Silica Structures: Size-Dependent Brittle-to-Ductile Transition
(American Society of Civil Engineers, 2011)Porous silica structures with intricate design patterns form the exoskeleton of diatoms, a large class of microscopic mineralized algae, whose structural features have been observed to exist down to nanoscale dimensions. ... -
Nanometer to Micron Scale Atomistic Mechanics of Silicon Using Atomistic Simulations at Accelerated Time Steps
(American Society of Civil Engineers, 2011)Atomistic simulations have a unique capability to reveal the material deformation mechanisms and the corresponding deformation-based constitutive behavior. However, atomistic simulations are limited by the accessible length ... -
Nanoindentation Behavior of Muscovite Subjected to Repeated Loading
(American Society of Civil Engineers, 2011)A series of repeated loading nanoindentation experiments were performed on muscovite with a sharp indenter tip and loading direction normal to the basal plane, and the maximum load ( -
Hybrid Lattice Particle Modeling of Retrofitting Infrastructure Design under a Blasting Load
(American Society of Civil Engineers, 2011)This paper presents a numerical method, known as hybrid lattice particle modeling (HLPM), for the study of the reinforcement potential for coating of three-layer functionally designed nonlinear response retrofitting structure ... -
Dislocation-Induced Stress Field in Multilayered Heterogeneous Thin Film System
(American Society of Civil Engineers, 2011)Taking advantage of the generalized Galerkin potential function and the Fourier transform, the research presented in this paper first derives the Green’s function for a multilayered heterogeneous thin film system. The ... -
Steered Molecular Dynamics Study of Mechanical Response of Full Length and Short Collagen Molecules
(American Society of Civil Engineers, 2011)Collagen is a fibrous protein that is responsible for structural integrity of various connective tissues such as bone, tendon, and skin. The mechanical properties of these hierarchical tissue structures are greatly influenced ... -
Effect of Imperfections on Elastic Stiffness of Polymers Reinforced with Long Aligned Single-Walled Carbon Nanotubes
(American Society of Civil Engineers, 2011)Theoretically, the polymers reinforced with long aligned single-walled carbon nanotubes (LASWCNTs) must have one order of magnitude larger stiffness and strength than the classical carbon fiber reinforced polymers. However, ... -
Solute Effects on β-Sn Grain Boundary Energy and Shear Stress
(American Society of Civil Engineers, 2011)The excess enthalpy and shear strain behavior of the β-Sn -
Higher-Order Continuum Theory Applied to Fracture Simulation of Nanoscale Intergranular Glassy Film
(American Society of Civil Engineers, 2011)Complex grain-boundary structures such as the 1–2 nm thick intergranular glassy films (IGF) play a prominent role in the failure behavior of nanophased ceramics. The IGF plays the role of an imperfection and serves as the ... -
Analytical and Experimental Determination of Rate- and Temperature-Dependent Length Scales Using Nanoindentation Experiments
(American Society of Civil Engineers, 2011)This work addresses the temperature and rate indentation size effects (TRISE) encountered in nanoindentation experiments and the corresponding material intrinsic length scales at different strain rates. The same value for ... -
Homogenization of Cohesive-Frictional Strength Properties of Porous Composites: Linear Comparison Composite Approach
(American Society of Civil Engineers, 2011)This paper introduces a novel micromechanics method for strength homogenization of cohesive-frictional porous composites. Within a yield design formulation, the inherently nonlinear homogenization problem associated with ... -
Computation of Elastic Properties of Portland Cement Using Molecular Dynamics
(American Society of Civil Engineers, 2011)There is a growing interest in relating nanostructures to the macro properties of engineering materials such as composites and cement materials. Better understanding of structure and elastic properties of nanoparticles in ... -
Microfluidic Channels Formed by Collapse of Soft Stamp
(American Society of Civil Engineers, 2011)Fabricating straight and robust micro- or nanofluidic channels with an adjustable cross-section area represents a challenge for conventional fabrication techniques. Recently, it was discovered that when a soft elastomeric ...