Journal of Engineering Materials and Technology: Recent submissions
Now showing items 901-920 of 3257
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Three Dimensional Finite Element Analysis of a Split-Sleeve Cold Expansion Process
(The American Society of Mechanical Engineers (ASME), 2009)A cold expansion process is used to prolong the fatigue life of a structure under cyclic loadings. The process produces a beneficial compressive residual stress zone in the hole vicinity, which ... -
Relaxation of Shot-Peened Residual Stresses Under Creep Loading
(The American Society of Mechanical Engineers (ASME), 2009)Shot peening is a commonly used surface treatment process that imparts compressive residual stresses into the surface of metal components. Compressive residual stresses retard initiation and growth ... -
A Method for Estimating Uncertainty of Indentation Tensile Properties in Instrumented Indentation Test
(The American Society of Mechanical Engineers (ASME), 2009)The instrumented indentation test, which measures indentation tensile properties, has attracted interest recently because this test can replace uniaxial tensile test. An international standard for ... -
Mechanical Properties of a Ceramic Coating With VEM Infiltration
(The American Society of Mechanical Engineers (ASME), 2009)In order to determine the mechanical properties of materials suitable for use as coatings on structural or gas turbine components, it is often necessary to conduct testing on coated specimens, ... -
Known Residual Stress Specimens Using Opposed Indentation
(The American Society of Mechanical Engineers (ASME), 2009)In order to test new theories for residual stress measurement or to test the effects of residual stress on fatigue, fracture, and stress corrosion cracking, a known stress test specimen was ... -
Microstructure Design to Improve Wear Resistance in Bioimplant UHMWPE Materials
(The American Society of Mechanical Engineers (ASME), 2009)A microstructure design framework for multiscale modeling of wear resistance in bioimplant materials is presented here. The increase in service lifetime of arthroplasty depends on whether we can ... -
Inverse Calculation of Uniaxial Stress-Strain Curves From Bending Test Data
(The American Society of Mechanical Engineers (ASME), 2009)Uniaxial tension and compression stress-strain curves are simultaneously evaluated from load and surface strain data measured during a bending test. The required calculations for the uniaxial ... -
Phase Evolution in Laser Rapid Forming of Compositionally Graded Ti–Ni Alloys
(The American Society of Mechanical Engineers (ASME), 2009)A graded binary titanium-nickel alloy with a compositional gradient, from elemental Ti to Ti–23.2 at. % Ni, has been successfully deposited using laser rapid forming. A metallurgical study of ... -
Heat Treatment Selection and Forming Strategies for 6082 Aluminum Alloy
(The American Society of Mechanical Engineers (ASME), 2009)Aluminum 6XXX alloys show high strength to weight ratios and are thus promising materials for today’s transport industry lightweight construction efforts. When considering both deformation and ... -
Development of an Engineering Model for Predicting the Transverse Coefficients of Thermal Expansion of Unidirectional Fiber Reinforced Composites
(The American Society of Mechanical Engineers (ASME), 2009)The coefficients of thermal expansion (CTEs) of fiber reinforced composites play an important role in the design and analysis of composite structures. Since the thermal expansion coefficients of ... -
The Physical and Computer Modeling of Plastic Deformation of Low Carbon Steel in Semisolid State
(The American Society of Mechanical Engineers (ASME), 2009)This paper reports the results of theoretical and experimental work leading to the construction of a dedicated finite element method (FEM) system allowing the computer simulation of physical ... -
Dynamic Restoration Processes in High-Mn TWIP Steels
(The American Society of Mechanical Engineers (ASME), 2009)The twinning-induced plasticity (TWIP) phenomenon is established as the most effective mechanism to enhance the formability of the advanced high-Mn (15–30 wt %) austenitic steels (known as TWIP ... -
Yield and Deformation in Biaxially Stressed Multilayer Metallic Thin Films
(The American Society of Mechanical Engineers (ASME), 2009)Multilayer thin films of CuNb, CuNi, and CuNbNi with 20 nm individual layer thicknesses were fabricated by magnetron sputtering on oxide coated silicon wafers. The mechanical properties of the ... -
Advances in Discrete Dislocations Dynamics and Multiscale Modeling
(The American Society of Mechanical Engineers (ASME), 2009)Discrete dislocation dynamics is a numerical tool developed to model the plasticity of crystalline materials at an intermediate length scale, between the atomistic modeling and the crystal ... -
Atomistic Modeling of Grain Boundaries and Dislocation Processes in Metallic Polycrystalline Materials
(The American Society of Mechanical Engineers (ASME), 2009)The objective of this review article is to provide a concise discussion of atomistic modeling efforts aimed at understanding the nanoscale behavior and the role of grain boundaries in plasticity ... -
Review of Hierarchical Multiscale Modeling to Describe the Mechanical Behavior of Amorphous Polymers
(The American Society of Mechanical Engineers (ASME), 2009)Modern computational methods have proved invaluable for the design and analysis of structural components using lightweight materials. The challenge of optimizing lightweight materials in the design ... -
Modeling of Lath Martensitic Microstructures and Failure Evolution in Steel Alloys
(The American Society of Mechanical Engineers (ASME), 2009)A multiple-slip dislocation-density-based crystalline formulation, specialized finite-element formulations, and Voronoi tessellations adapted to martensitic orientations were used to investigate ... -
Semi-Empirical Potential Methods for Atomistic Simulations of Metals and Their Construction Procedures
(The American Society of Mechanical Engineers (ASME), 2009)General theory of semi-empirical potential methods including embedded-atom method and modified-embedded-atom method (MEAM) is reviewed. The procedures to construct these potentials are also reviewed. ... -
Influence of Manufacturing Processes and Microstructures on the Performance and Manufacturability of Advanced High Strength Steels
(The American Society of Mechanical Engineers (ASME), 2009)Advanced high strength steels (AHSS) are performance-based steel grades and their global material properties can be achieved with various steel chemistries and manufacturing processes, leading to ... -
Multiscale Experiments: State of the Art and Remaining Challenges
(The American Society of Mechanical Engineers (ASME), 2009)In this article we review recent advances in experimental techniques for the mechanical characterization of materials and structures at various length scales with an emphasis in the submicron- ...