Journal of Engineering Materials and Technology: Recent submissions
Now showing items 841-860 of 3257
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Principles of Nonequal Channel Angular Pressing
(The American Society of Mechanical Engineers (ASME), 2010)A variant of the equal channel angular pressing (ECAP) process is examined in this paper where the channels are of rectangular shape with different thicknesses while the widths of the channels ... -
Stress Whitening Quantification of Thermoformed Mineral Filled Acrylics
(The American Society of Mechanical Engineers (ASME), 2010)Stress whitening problem in thermoformed alumina trihydrate (ATH) reinforced poly(methyl methacrylate) (PMMA) was studied. In situ heavy-gage thermoforming of acrylics was entirely replicated under ... -
Shock Wave Propagation and Spallation Study in Laser Shock Peening
(The American Society of Mechanical Engineers (ASME), 2010)This paper deals with the spallation induced by shock wave propagation in targets during the laser shock peening process. Physical aspects concerning laser-matter interaction, shock wave propagation, ... -
Fatigue Characterization and Modeling of Friction Stir Spot Welds in Magnesium AZ31 Alloy
(The American Society of Mechanical Engineers (ASME), 2010)The fatigue behavior of friction stir spot welds in magnesium AZ31 alloy is experimentally investigated and modeled. The friction stir spot welds employed in this study are representative of ... -
Constitutive Modeling of Damage Evolution in Semicrystalline Polyethylene
(The American Society of Mechanical Engineers (ASME), 2010)In this article, the description of a novel damage-coupled constitutive formulation for the mechanical behavior of semicrystalline polyethylene is presented. The model attempts to describe the ... -
Constitutive Modeling of Shape Memory Effects in Semicrystalline Polymers With Stretch Induced Crystallization
(The American Society of Mechanical Engineers (ASME), 2010)Polymers can demonstrate shape memory (SM) effects by being temporarily fixed in a nonequilibrium shape and then recover their permanent shape when exposed to heat, light, or other external ... -
Creep Behavior of Copper and Cu–0.3Cr–0.1Ag Alloy
(The American Society of Mechanical Engineers (ASME), 2010)The creep behavior of Cu–0.3Cr–0.1Ag alloy was investigated by the impression creep testing technique and compared with that of pure copper under constant punching stress in the range 80–550 ... -
Al2O3 Graded Coatings on Aluminum Alloy Deposited by the Fluidized Bed (FB) Technique: Film Formation and Mechanical Performance
(The American Society of Mechanical Engineers (ASME), 2010)Al2O3 coatings have been deposited onto an Al alloy by the fluidized bed (FB) technique using alumina powder. Film formation through a cold deposition process and its growth kinetics have been ... -
Enhancing Uniform, Nonuniform, and Total Failure Strain of Aluminum by Using SiC at Nanolength Scale
(The American Society of Mechanical Engineers (ASME), 2010)The present study reports a unique tensile response of pure aluminum triggered due to the presence of SiC particles at nanolength scale. Al/SiC nanocomposites were synthesized by using energy ... -
Surface Roughening During Deformation of Polycrystalline Aluminum and Titanium Alloys
(The American Society of Mechanical Engineers (ASME), 2010)The surface topography of aluminum and titanium alloys after plastic deformation is investigated using white-light interferometry. The surface profiles of tensile samples in the longitudinal and ... -
Effect of Weld Location, Orientation, and Strain Path on Forming Behavior of AHSS Tailor Welded Blanks
(The American Society of Mechanical Engineers (ASME), 2010)Use of multiple advanced high strength steel sheets for fabrication of tailor welded blanks (TWBs) is one of the current interests for automotive and steel industries as it reduces manufacturing ... -
Microstructure Development During High Strain Torsion of NiAl
(The American Society of Mechanical Engineers (ASME), 2009)The microstructure development was investigated in torsion deformed NiAl. High strain torsion of solid bars was done with a Paterson rock deformation machine at temperatures between 700 K and ... -
Texture Formation and Swift Effect in High Strain Torsion of NiAl
(The American Society of Mechanical Engineers (ASME), 2009)Texture formation and Swift effect were investigated in torsion deformed NiAl. High-strain torsion of solid bars was done with a Paterson rock deformation machine at temperatures between 700 K ... -
Analysis of Large Strain Hot Torsion Textures Associated With “Continuous” Dynamic Recrystallization
(The American Society of Mechanical Engineers (ASME), 2009)The development of ideal orientations within the steady-state region of hot torsion flow curves of fcc and bcc metals undergoing “continuous” dynamic recrystallization is analyzed. It is well ... -
Shear on the Flow Surface of Metallic Crystals
(The American Society of Mechanical Engineers (ASME), 2009)The present article addresses the following question: How is it that shears are so common in the plastic deformation of metallic alloys? An answer is sought in a geometric description of the ... -
Numerical Study of Impact Penetration Shearing Employing Finite Strain Viscoplasticity Model Incorporating Adiabatic Shear Banding
(The American Society of Mechanical Engineers (ASME), 2009)This work brings forward a twofold contribution relevant to the adiabatic shear banding (ASB) process as a part of dynamic plasticity of high-strength metallic materials. The first contribution ... -
Identification of Simple Shear in Plane Strain Deformation
(The American Society of Mechanical Engineers (ASME), 2009)A theoretical analysis of plane strain incompressible velocity fields is first carried out. Two types of local fields are distinguished according to the sign of det(L), where L is the velocity ... -
Plastic Behavior of Metals at Large Strains: Experimental Studies Involving Simple Shear
(The American Society of Mechanical Engineers (ASME), 2009)Two experimental devices that promote simple shear are used to investigate the plastic behavior of metals under very large strains. First, researches on the anisotropic behaviors of sheets of ... -
Texture and Mechanical Behavior of Magnesium During Free-End Torsion
(The American Society of Mechanical Engineers (ASME), 2009)Torsion experiments were carried out on pure magnesium (99.9%) and the magnesium alloy AZ71 under free-end conditions of testing. The alloy had an axisymmetric initial texture, while the pure ... -
Determination of Critical Strains in Isotactic Polypropylene by Cyclic Loading-Unloading
(The American Society of Mechanical Engineers (ASME), 2009)By analyzing the deformation of α—isotactic polypropylene through cyclic uniaxial compression at different temperatures—conclusions are drawn on the contribution of the crystalline phase and the ...