Mechanical Engineering: Recent submissions
Now showing items 121-140 of 465
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Temperature-dependent particle stability behavior and its effect on radiative transfer in water/SiO2 nanofluids
(Yildiz Technical University, 2021-09)Radiative transfer is one of the methods of energy transport that includes in a wide range of applications and we feel it in our daily lives. Thermal radiation transfer plays an effective role in the utilization of renewable ... -
Low-cycle fatigue behavior of friction stir-welded copper joints
(Springer, 2021-11)Investigation of the fatigue response of friction stir-welded (FSWed) joints is especially important in the design and manufacturing of components with exposure to cyclic loading. In this study, cyclic response of FSWed ... -
Optical and radiative properties of individual and hybrid nanosuspensions: The effects of similar and dissimilar particle agglomerates on thermal radiation
(Yildiz Technical University, 2021-02)Nanosuspensions are proposed for use in improving the thermal efficiency of different thermal systems; including solar thermal power plants. Because of their excellent and unique thermo-optical properties, which are the ... -
Exploring the performance limits of MOF/polymer MMMs for O2/N2 separation using computational screening
(Elsevier, 2021-01-15)Air separation is one of the most challenging separations because of the very similar molecular dimensions of gas molecules. We used a high-throughput computational screening approach to identify the upper performance ... -
First-principle diffraction simulations as a tool to solve the nanodiffraction problem
(International Union of Crystallography, 2021-08)N/A -
Severe plastic deformation as a processing tool for strengthening of additive manufactured alloys
(Elsevier, 2021-08)For the first time, the novel combination of multi-pass equal channel angular extrusion/pressing (ECAE/P) and selective laser melting (SLM) was investigated. Herein, four passes of ECAP via route Bc at 150 °C were applied ... -
On the fatigue and fracture behavior of keyhole-free friction stir spot welded joints in an aluminum alloy
(Elsevier, 2021-03)The target of this research study was to evaluate the shear-tensile and fatigue behavior of aluminum 6061 alloy welds, in two different heat treatment conditions, joined by the recently developed intermediate layer friction ... -
Effect of fuel choice on conductivity and morphological properties of samarium doped ceria electrolytes for IT-SOFC
(TÜBİTAK, 2021)The present investigation is emphasized on the effect of various combustion agents on the crystal properties, surface microstructure, and oxygen ion conductivity of 20% mole-Sm doped ceria (Ce0.80Sm0.20O1.90/SDC20) ceramics ... -
Recent advances in simulating gas permeation through MOF membranes
(Royal Society Publishing, 2021-08-21)In the last two decades, metal organic frameworks (MOFs) have gained increasing attention in membrane-based gas separations due to their tunable structural properties. Computational methods play a critical role in providing ... -
An efficient design methodology for graded surface-based lattice structures using free-size optimization and enhanced mapping method
(Elsevier, 2021-11-15)In this paper, a novel Free-size Optimization based Graded Lattice Generation (FOGLG) method, that generates the functionally graded lattice (FGL) structures using free-size optimization, is proposed. In addition, the ... -
Hardness and wear resistance of roller burnished 316L stainless steel
(Elsevier, 2021)This study investigates the effects of roller burnishing on the microstructure, surface microhardness, and wear resistance of 316L stainless steel. Experimental design based on the Taguchi orthogonal array was employed to ... -
Thermal and optical characterization of white and blue multi-chip LED light engines
(IEEE, 2021)A clear understanding of thermal characteristics for light emitting diodes (LEDs) is at the center of attention for lighting industry. Especially accurate evaluation of the junction temperature of various light engines is ... -
Application of novel constrained groove pressing routes on austenitic stainless steel
(Springer, 2021-11)In this study, a novel set of constrained groove processing routes was put forward especially to underline the variation of strain paths. Namely, 304 stainless steel sheets were processed by five distinctly specified ... -
The effect of spotwelds and structural adhesives on static and dynamic characteristics of vehicle body design
(Sage, 2021-10)Spotwelding and structural adhesive applications are two important processes in the automotive industry as they are closely associated with the functional requirements, weight, and cost of the vehicle. Even though there ... -
Tepki kuvveti gözetleyici tabanlı tork kontrolü
(Gazi Üniversitesi, 2021-12)In this article, a reaction force observer-based torque controller was designed and experimentally implemented to a non-backdrivable actuator unit. Torque control is of importance when considering physical human-robot ... -
Effect of aging on the mechanical behavior of aluminum-steel composites processed by accumulative roll bonding
(Elsevier, 2021)Severe plastic deformation (SPD) processes have been widely used to provide ultrafine-grained (UFG) structures along with enriched strength in various metals. This study focuses on accumulative roll bonding (ARB), an SPD ... -
A coupled material removal model for chemical mechanical polishing processes
(IOP Publishing, 2021-10-01)Chemical mechanical polishing (CMP) is a process used to obtain planarized surfaces in microelectronic device manufacturing. The planarization is achieved by material removal from the wafer surface by synergistic effect ... -
An investigation into the optothermal behavior of a high power red light emitting diode: impact of an optical path
Monochromatic light emitting diodes (LEDs) are getting more attention day by day for a very wide range of applications such as general lighting, signage, automotive lighting, display, water purification, and skin imaging. ... -
On the individual droplet growth modeling and heat transfer analysis in dropwise condensation
(IEEE, 2021-10)The low convective coefficient at condenser part of spreaders and vapor chambers due to film blanket blocking encourages utilizing dropwise condensation (DWC). Challenges exist in the experimental characterization of DWC, ... -
On the high-temperature flow response of friction stir processed magnesium metal matrix composites
(ASME, 2021-01-01)In the current work, multi-pass friction stir processing (FSP) was utilized to fabricate samples of fine-grained aluminum-zinc (AZ) magnesium alloy and its metal matrix composite (MMC). The microstructure and high-temperature ...
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