Mechanical Engineering
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A study on smart SansEC skin sensing for real-time monitoring of flexible structures
(IEEE, 2018-02-02)The bending deflection of a flexible physical system was investigated during its forced dynamic deformation utilizing electromagnetic resonant SansEC sensing. The dynamic frequency response function (DFRF) was measured ... -
Sensitivity and uncertainty analyses of ex-vessel molten core cooling in a flooded cavity during a severe accident
(Elsevier Ltd., 2018-03)Sensitivity and uncertainty analyses of molten core cooling under the ex-vessel phase of a severe accident of a light water reactor was performed with the COOLAP-I (COOLability Analysis Program-I) model, a parametric model ... -
On the limitations of volume-averaged descriptions of gas diffusion layers in the modeling of polymer electrolyte fuel cells
(Electrochemical Society, Inc., 2017)Understanding of the coupled transport processes that occur in thin gas diffusion layers (GDLs) is necessary to develop improved designs. The traditional technique used to model GDLs is the volume-averaged approximation. ... -
A comprehensive survey of the analytical, numerical and experimental methodologies for dynamics of multibody mechanical systems with clearance or imperfect joints
(Elsevier, 2018-04)A comprehensive survey of the literature of the most relevant analytical, numerical, and experimental approaches for the kinematic and dynamic analyses of multibody mechanical systems with clearance joints is presented in ... -
Effect of nanoclay and graphene inclusions on the low-velocity impact resistance of Kevlar-epoxy laminated composites
(Elsevier, 2018-03-01)This experimental study shows the effectiveness of geometries (1D and 2D) and surface energies of nanofillers on the impact resistance, damage tolerance and environmental degradation resistance of Kevlar fiber-reinforced ... -
Review of welding residual stress stiffening effect on vibrational characteristics of structures using damage approach and vibratory stress relief implementation
(ASME, 2017)There is a huge amount of research and study on the quality, parameter manipulation, material selection etc. of welding to develop optimized results for specific applications. To have a profound understanding of the process, ... -
Adsorption and capillary condensation in nanogap with nanoposts
(ASME, 2017)Adsorption isotherm and adsorption-capillary transition theories have been developed based on homogeneous micro-/nanoporous materials and structures. However, material and structures are often heterogeneous including local ... -
Fabrication and characterization of electrospun polyacrylonitrile carbonized fibers as strain gauges in composites for structural health monitoring applications
(Wichita State University, 2017-07)This dissertation is aimed at developing new materials to be used as strain gauges in structural health monitoring (SHM) of composite aircraft structures. The unabated growth in air traffic has spurred increased demand in ... -
Upgrading natural gas to value-added liquid products in aqueous systems under ambient conditions
(Wichita State University, 2017-07)A novel method of upgrading natural gas into value-added liquid products is presented, in which the methane is activated by a decoupled oxidation approach with metal-surface facilitation in aqueous system under ambient ... -
Automotive side-impact simulations and comparison of dummy and human body model crash dynamic responses according to regulatory standards
(Wichita State University, 2017-07)According to the U.S. Department of Transportation, National Highway Traffic Safety Administration (NHTSA) and the Insurance Institute for Highway Safety (IIHS), side-impact car accidents are the second leading cause of ... -
Enhanced transport properties of graphene-based, thin Nafion (R) membrane for polymer electrolyte membrane fuel cells
(Wiley, 2018-02)A polymer electrolyte membrane fuel cell (PEMFC) is one of the promising renewable energy conversion systems; however, its performance is considerably limited by the sluggish transport properties and/or reaction kinetics ... -
Encapsulation of natural ingredient for skin protection via nanoemulsion process
(SPIE, 2017-04-17)Many of the sunscreens are used during the hot summer time to protect the skin surface. However, some of ingredients in the sunscreens, such as oxybenzone, retinyl palmitate and synthetic fragrances including parabens, ... -
Effects of heat treatments and UV exposures on mechanical properties of 3D printed acrylonitrile butadiene styrene specimens
(SPIE, 2017-04-17)Over the last few years, tremendous amount of research efforts has been conducted on 3D printing materials, methods and systems. Various 3D printer materials in different size, shape and geometry can be used for advanced ... -
Effects of different processing parameters on covalent functionalization of straight and helical carbon nanotubes for nanocomposite applications
(Wichita State University, 2017-05)Carbon nanotubes (CNTs), as one of the carbon allotropes, have been extensively investigated during the past two decades, due to their unique and extraordinary mechanical, thermal, and electrical properties. They exist in ... -
Improving thermal decomposition process of recycled plastics for sustainable gas and liquid fuel production
(Wichita State University, 2017-05)In the U.S.A., plastic waste is about 12.7 % of the total municipal waste which is approximately 32 million tons annually. Recovery of plastics is usually done through waste-toenergy or recycling options. Plastic-to-fuel ... -
Design and finite element analysis of coronary bifurcation stents
(Wichita State University, 2017-05) -
Evaluation of new steel and composite beam designs for side impact protection of a sedan as per FMVSS 214, IIHS and side pole tests requirements
(Wichita State University, 2017-05)Side impact crashes can be generally quite dangerous due to the limited space in the car door for large deformation and energy-dissipation in order to protect an occupant from the crash forces. The side impact collision ... -
Study of pressure drop and heat transfer in micro channel branch with varying bifurcation angle, aspect ratio, and temperature
(Wichita State University, 2017-05)The current study is focused on studying the effects of temperature and bifurcation angle on pressure drop as well as heat transfer in micro-channels for two Newtonian fluids - water and air. The microchannel of aspect ... -
Low-temperature carbon-based counter electrodes for hole transport free perovskite solar cells fabricated in ambient conditions
(Wichita State University, 2017-05)Perovskite solar cells are the much talked about and researched devices in the photovoltaic community. Most high-efficiency solar cells are prepared using an expensive hole transport layer which is unstable in ambient ... -
Effects of sodium chloride inclusions and micro-scale porosity on the figure of merit of bismuth telluride
(Wichita State University, 2017-05)Near stoichiometric bismuth telluride (Bi2Te3) powder was mixed with various concentrations of sodium chloride (NaCl) ranging from 0% to 50% by volume, in 10% increments. The sodium chloride was mechanically ground to ...
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