Journal of Engineering Materials and Technology: Recent submissions
Now showing items 681-700 of 3257
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A Chemo-Elastoplastic Analysis of Anisotropic Swelling in an SnO2 Nanowire Under Lithiation
(The American Society of Mechanical Engineers (ASME), 2012)A parametric study is carried out to shed light on the elastoplastic behavior of a nanowire under lithiation. The Li-ion diffusivity is assumed to be significantly higher at near-saturation ... -
Dynamic Electromechanical Response of Multilayered Piezoelectric Composites From Room to Cryogenic Temperatures for Fuel Injector Applications
(The American Society of Mechanical Engineers (ASME), 2012)This paper studies the dynamic electromechanical response of multilayered piezoelectric composites under ac electric fields from room to cryogenic temperatures for fuel injector applications. A ... -
Consistent Asymptotic Expansion Multiscale Formulation for Heterogeneous Column Structure
(The American Society of Mechanical Engineers (ASME), 2012)A consistent asymptotic expansion multiscale formulation is presented for analysis of the heterogeneous column structure, which has three dimensional periodic reinforcements along the axial direction. ... -
Optimal Percolation Thresholds of Two- and Three-Dimensional Engineering Composites
(The American Society of Mechanical Engineers (ASME), 2012)Theoretical prediction of percolation thresholds universally applicable for various composites remains a major theoretical challenge. In the work done by Xu (2011, “Ellipsoidal Bounds and Percolation ... -
Flexural Behavior of a Layer-to-Layer Orthogonal Interlocked Three-Dimensional Textile Composite
(The American Society of Mechanical Engineers (ASME), 2012)The flexural response of a three-dimensional (3D) layer-to-layer orthogonal interlocked textile composite has been investigated under quasi-static three-point bending. Fiber tow kinking on the ... -
Stress Analysis and Structural Optimization of a Three-Layer Composite Cladding Tube Under Thermo-Mechanical Loads
(The American Society of Mechanical Engineers (ASME), 2012)A general solution for the stress and strain fields in a three-layer composite tube subjected to internal and external pressures and temperature changes is first derived using thermo-elasticity. ... -
A Simplified Micromechancial Model for Analyzing Viscoelastic–Viscoplastic Response of Unidirectional Fiber Composites
(The American Society of Mechanical Engineers (ASME), 2012)This study introduces a simplified micromechanical model for analyzing a combined viscoelastic–viscoplastic response of unidirectional fiber reinforced polymer (FRP) composites. The micromechanical ... -
Characterization of Zinc Powder Compactions: Factors Affecting Mechanical Properties and Analytical Powder Metallurgy Models
(The American Society of Mechanical Engineers (ASME), 2012)In this study, the effectiveness of analytical models which attempt to predict the density of unsintered powder metallurgy (PM) compacts as a function of consolidation pressure is investigated. ... -
Modified Stoney's Formulas for Small-Scaled Bilayer Systems
(The American Society of Mechanical Engineers (ASME), 2012)The mechanics of a small-scaled bilayer film-substrate system subject to temperature variation is studied. The modified couple stress theory is employed to take account of the size effects that ... -
Energy Loss in Carbon Nanotube Beam Oscillators due to Anelastic Relaxation
(The American Society of Mechanical Engineers (ASME), 2012)We present a semi-analytical approach to study the energy dissipation in carbon nanotube (CNT) beam oscillators under gigahertz excitation. The energy dissipation properties are quantified by the ... -
Mechanics of Heterogeneous Solids and Composite Materials
(The American Society of Mechanical Engineers (ASME), 2012)This special issue of ASME Journal of Engineering Materials and Technology includes 14 papers on heterogeneous solids and composite materials, which are selected from those in the topical area ... -
Surface Stress Effect on the Pull-In Instability of Hydrostatically and Electrostatically Actuated Rectangular Nanoplates With Various Edge Supports
(The American Society of Mechanical Engineers (ASME), 2012)This paper is aimed to investigate the size-dependent pull-in behavior of hydrostatically and electrostatically actuated rectangular nanoplates including surface stress effects based on a modified ... -
Using Damage Delocalization to Model Localization Phenomena in Bammann-Chiesa-Johnson Metals
(The American Society of Mechanical Engineers (ASME), 2012)The Bammann, Chiesa, and Johnson (BCJ) material model predicts unlimited localization of strain and damage, resulting in a zero dissipation energy at failure. This difficulty resolves when the ... -
Properties of Composite Cylinders Fabricated by Bladder Assisted Composite Manufacturing
(The American Society of Mechanical Engineers (ASME), 2012)An innovative manufacturing method, bladder assisted composite manufacturing (BACM), to fabricate geometrically complex, hollow parts made of polymeric composite materials is presented. Unlike the ... -
The Draw-Bend Fracture Test and Its Application to Dual-Phase and Transformation Induced Plasticity Steels
(The American Society of Mechanical Engineers (ASME), 2012)Unpredicted sheet forming failures of dual-phase (DP) steels can occur in regions of high curvature and with little apparent necking. Such failures are often referred to as “shear fractures”. ... -
Effect of KIII on Fatigue Crack Growth Behavior
(The American Society of Mechanical Engineers (ASME), 2012)In this study, mixed-mode fatigue tests are conducted using surface-cracked specimens. Slant surface-cracked specimens are prepared with crack angles of 15 deg, 30 deg, 45 deg, and 60 deg. It ... -
Design of Radiation Tolerant Nanostructured Metallic Multilayers
(The American Society of Mechanical Engineers (ASME), 2012)We review He ion induced radiation damage in several metallic multilayer systems, including Cu/V, Cu/Mo, Fe/W, and Al/Nb up to a peak dose of several displacements per atom (dpa). Size dependent ... -
Comparison Between Two Experimental Procedures for Cyclic Plastic Characterization of High Strength Steel Sheets
(The American Society of Mechanical Engineers (ASME), 2012)In finite element analysis of sheet metal forming the use of combined isotropic-kinematic hardening models is advisable to improve stamping simulation and springback prediction. This choice becomes ... -
Study of Ductile-to-Brittle Transition in Single Grit Diamond Scribing of Silicon: Application to Wire Sawing of Silicon Wafers
(The American Society of Mechanical Engineers (ASME), 2012)The ductile-to-brittle cutting mode transition in single grit diamond scribing of monocrystalline silicon is investigated in this paper. Specifically, the effects of scriber tip geometry, coefficient ... -
Influence of Fabrication and Interference-Fit Techniques on Tensile and Fatigue Properties of Pin-Loaded Glass Fiber Reinforced Plastics Composites
(The American Society of Mechanical Engineers (ASME), 2012)This paper aims to investigate the effect of fabrication processes on fatigue life enhancement of interference-fit pin-loaded glass fiber reinforced plastics (GFRP) composites. In this experimental ...