Journal of Engineering Materials and Technology: Recent submissions
Now showing items 221-240 of 3257
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Compressibility, Damage, and Age-Hardening Effects of Solid Propellants Using Finite Strain Constitutive Model
(American Society of Mechanical Engineers (ASME), 2019)In this paper, the finite strain viscoelastic constitutive model for particulate composite solid propellants is proposed considering strain rate, large deformation/large strain, thermorheological behavior, stress softening ... -
Use of Polymer Scaffolding and Electroplating to Create Porous Metal Structures
(American Society of Mechanical Engineers (ASME), 2019)Additive manufacturing (AM) offers a fabrication process that provides numerous advantages when compared with traditional fabrication methods. Specifically, AM technology allows for the creation of porous media where ... -
Measurements of Through-Thickness Young's Moduli of Fibrous Composite Laminates Using Nanoindentation
(American Society of Mechanical Engineers (ASME), 2019)A new approach of measuring through-thickness Young's moduli of composite materials using nanoindentation was proposed. First, an approximate expression of the reduced modulus of nanoindentation was introduced for orthotropic ... -
Experimental Characterization and Finite Element Prediction of Large Strain Spring-Back Behavior of Poly(Methyl Methacrylate)
(American Society of Mechanical Engineers (ASME), 2019)Spring-back of poly(methyl methacrylate) (PMMA) at large strains, various embossing temperatures, and release temperatures below glass transition is quantified through modified unconfined recovery tests. Cooling, as well ... -
Stress Corrosion Cracking Behavior of Tungsten Inert Gas Welded Age-Hardenable AA6061 Alloy
(American Society of Mechanical Engineers (ASME), 2019)The effects of two temper conditions (T4 and T6 heat treatments) upon the stress corrosion cracking (SCC) of AA6061 plates have been investigated in this work. AA6061 alloys were double-side-welded by the tungsten inert ... -
Effects of Graphene Oxide Thin Films and Nanocomposite Coatings on Flame Retardancy and Thermal Stability of Aircraft Composites: A Comparative Study
(American Society of Mechanical Engineers (ASME), 2019)A polymer matrix system of thermoset fiber-reinforced composites helps protect its high modulus and strength fibers from an adverse environment and transfers the load to the reinforced fibers. However, when subjected to a ... -
An Assessment of the Evolving Microstructural Model of Inelasticity Coupled With Dislocation- and Disclination-Based Incompatibilities
(American Society of Mechanical Engineers (ASME), 2019)The evolving microstructural model of inelasticity (EMMI) previously developed as an improvement over the Bammann–Chiesa–Johnson (BCJ) material model is well known to describe the macroscopic nonlinear behavior of ... -
Thermogravimetric Investigations of Novel γ–γ′ Co-Al-W and Co-Al-Mo-Nb Cobalt-Based Superalloys
(American Society of Mechanical Engineers (ASME), 2019)Cobalt-based γ–γ′ superalloys are novel heat-resistant materials suitable for high-temperature applications, such as components of the turbine engine. These alloys exhibit favorable strength and corrosion resistance at ... -
Stress Corrosion Cracking Behavior of Tungsten Inert Gas Welded Age-Hardenable AA6061 Alloy
(The American Society of Mechanical Engineers (ASME), 2019)The effects of two temper conditions (T4 and T6 heat treatments) upon the stress corrosion cracking (SCC) of AA6061 plates have been investigated in this work. AA6061 alloys were double-side-welded by the tungsten inert ... -
Investigating Discrepancies in Vibration Bending Fatigue Behavior of Additively Manufactured Titanium 6Al-4V
(The American Society of Mechanical Engineers (ASME), 2019)The vibration bending fatigue life uncertainty of additively manufactured titanium (Ti) 6Al-4V specimens is studied. In this investigation, an analysis of microscopic discrepancies between ten fatigued specimens paired by ... -
Use of Polymer Scaffolding and Electroplating to Create Porous Metal Structures
(The American Society of Mechanical Engineers (ASME), 2019)Additive manufacturing (AM) offers a fabrication process that provides numerous advantages when compared with traditional fabrication methods. Specifically, AM technology allows for the creation of porous media where ... -
The Precise Determination of the Johnson–Cook Material and Damage Model Parameters and Mechanical Properties of an Aluminum 7068-T651 Alloy
(The American Society of Mechanical Engineers (ASME), 2019)Al 7068-T651 alloy is one of the recently developed materials used mostly in the defense industry due to its high strength, toughness, and low weight compared to steels. The aim of this study is to identify the Johnson–Cook ... -
Analyses of Constitutive Behavior of As-Cast Aluminum Alloys AA3104, AA5182, and AA6111 During Direct Chill Casting Using Physically Based Models
(The American Society of Mechanical Engineers (ASME), 2019)To understand the formation of direct chill (DC)-casting defects, e.g., butt curl and crack formation, it is essential to take into account the effect of temperature variation, strain rate, and their role in the constitutive ... -
Mechanical Characterization and Modeling of Direct Metal Laser Sintered Stainless Steel GP1
(The American Society of Mechanical Engineers (ASME), 2019)The additive manufacturing (AM) process is unique in that it can facilitate anisotropy because of the layer-by-layer deposition technique intrinsic to this process. In order to develop a component for a desired application, ... -
Numerical Investigation of the Origin of Anomalous Tensile Twinning in Magnesium Alloys
(The American Society of Mechanical Engineers (ASME), 2019)It has been observed that tension twins (TTs) are triggered in rolled polycrystalline magnesium alloys under tensile loading applied along the rolling direction (RD) or the transverse direction. This is surprising because ... -
Experimental Characterization and Finite Element Prediction of Large Strain Spring-Back Behavior of Poly(Methyl Methacrylate)
(The American Society of Mechanical Engineers (ASME), 2019)Spring-back of poly(methyl methacrylate) (PMMA) at large strains, various embossing temperatures, and release temperatures below glass transition is quantified through modified unconfined recovery tests. Cooling, as well ... -
Effect of Underloads on Plasticity-Induced Crack Closure: A Numerical Analysis
(The American Society of Mechanical Engineers (ASME), 2019)The effect of underloads is mostly quantified by the averaged effect on the fatigue crack growth rate, and the transient behavior is rarely investigated. The objective of this paper is to study the mechanisms behind the ... -
The Effect of Temperature on Puncture Resistance of Glass Cloth Reinforced Polyester Composites
(The American Society of Mechanical Engineers (ASME), 2019)Reinforced polyester composites are widely used in many applications where puncture resistance is important. This research is aimed at understanding whether exposure to different temperatures, high and very low, affects ... -
Measurements of Through-Thickness Young's Moduli of Fibrous Composite Laminates Using Nanoindentation
(The American Society of Mechanical Engineers (ASME), 2019)A new approach of measuring through-thickness Young's moduli of composite materials using nanoindentation was proposed. First, an approximate expression of the reduced modulus of nanoindentation was introduced for orthotropic ... -
Effects of Graphene Oxide Thin Films and Nanocomposite Coatings on Flame Retardancy and Thermal Stability of Aircraft Composites: A Comparative Study
(The American Society of Mechanical Engineers (ASME), 2019)A polymer matrix system of thermoset fiber-reinforced composites helps protect its high modulus and strength fibers from an adverse environment and transfers the load to the reinforced fibers. However, when subjected to a ...