Aerospace Engineering
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Numerical assessment of pulsatile flow through diverging tees with a sharp- and round-edge junction
(Elsevier, 2019-04)Unsteady flow through diverging tees is of interest in many industrial systems and physiological applications. In this study, the characteristics of the transient flow behaviors at the junctions of diverging tees with ... -
In-plane thermal characterization of fiberglass/phenolic honeycomb core through an experimental-numerical approach
(DEStech Publications Inc., 2018)In the present study, a series of in-plane quasi-static tensile and compressive tests are carried out on a commercial Fiberglass/Phenolic hexagonal cell honeycomb core at elevated temperatures to investigate the high ... -
Analysis of automotive cyber-attacks on highways using partial differential equation models
(IEEE, 2018-12)This paper considers scenarios wherein a group of malicious vehicles on a highway perform a cooperative attack with the motive of creating undesirable wave effects among other vehicles on the highway. The two species of ... -
An analytical approach to characterize uniaxial in-plane responses of commercial hexagonal honeycomb core under large deformations
(Elsevier, 2019-03-01)In this article, an analytical model is derived to investigate the in-plane homogenized stress-strain relationship of an adhesively bonded commercial hexagonal honeycomb core under large deformation. The model incorporates ... -
An overview of Cube-Satellite propulsion technologies and trends
(MDPI Multidisciplinary Digital Publishing Institute, 2017-12-09)CubeSats provide a cost effective means to perform scientific and technological studies in space. Due to their affordability, CubeSat technologies have been diversely studied and developed by educational institutions, ... -
Loss of control prediction system for the longitudinal and lateral dynamics of an aircraft using Laplace methods
(Wichita State University, 2018-07)Loss-of-control events have contributed to many accidents worldwide to this date. A signi cant amount of research has been done to provide safer ight conditions and thus prevent such events from occurring. One such ... -
Evaluation of a progressive damage model for a single lap-shear joint of multi-directional laminates
(Wichita State University, 2018-07)This document presents results from a numerical study of the progressive damage capabilities of the MAT162 material model in Ls-DYNA explicit finite element code. Single-shear fastener lap joint of multi-directional laminates ... -
A numerical representative volume element on the mesoscale for parts manufactured through fused deposition modeling and reinforced with short fibers
(Wichita State University, 2018-05)The analysis and certification of parts manufactured through Fused Deposition Modeling and reinforced with short fibers are the main drawback of the emerging technology. The present work builds a framework for the discrete ... -
Development of a fastener element in a lap joint with plates
(Wichita State University, 2018-05)The application of joints or other forms of connections are often seen in large assembled structures. When it comes to model joints in FEA software, engineers have some difficult decisions to make. Modeling joints using ... -
Fast and robust computation of low-thrust orbit-raising trajectories
(American Institute of Aeronautics and Astronautics, Inc. Read More: https://arc.aiaa.org/doi/10.2514/1.G003319, 2018-09)This paper presents a new dynamic model of a thrusting spacecraft, and the model is used for computing low-thrust orbit-raising trajectories to the geosynchronous equatorial orbit. Low-thrust orbit raising is a challenging ... -
A novel methodology for fast and robust computation of low-thrust orbit-raising trajectories
(Univelt, Inc., 2017)All-electric spacecraft makes numerous revolutions during the orbit-raising to the geosynchronous equatorial orbit. This paper presents a new mathematical formulation to describe the dynamics of the spacecraft under the ... -
De-orbit time of on-orbit debris for laser-based removal methods
(Univelt, Inc., 2017)The amount of space debris in the near-Earth space environment poses a major challenge for current and future space missions. Controlling the growth of on-orbit debris utilizing on-orbit debris removal missions is of great ... -
Demand-side energy management by use of a Design-then-Approximate controller for aggregated thermostatic loads
(IEEE, 2018-07)This brief presents a method to design a controller for a system of aggregated thermostatically controlled loads (TCLs) that are represented by two coupled partial differential equations-the Fokker-Planck equations. The ... -
A three-dimensional numerical analysis of the effect of embedding cylindrical microwire sensors on the compressive strength of carbon-fiber reinforced composite laminates
(Wichita State University, 2017-12)The objective of this 3D finite element analysis study is to evaluate the effect on compressive strength of a laminated composite specimen, when cylindrical microwire tubes are embedded inside the structure. These microwire ... -
Characterization of tensile and compressive properties of single fiber filament of TOHO HTS 40 carbon fiber
(Wichita State University, 2017-12)In this work, the longitudinal tensile and compressive properties of TOHO HTS 40 carbon fiber filaments was characterized experimentally. The tensile strength and modulus were measured using a single filament tension tests ... -
Strength characterization of chopped-fiber composites using Iosipescu test method
(Wichita State University, 2017-12)In the aviation industry, composites are considered high-performance structural materials. Composite materials are mainly used in fuselages, wings, propellers, interior components, landing gears, doors, etc. Their main ... -
A numerical study on the triaxiality distribution in a single shear lap fastener joint
(Wichita State University, 2017-12)Fastened joints are used extensively in the aerospace industry and play an important role in defining the crashworthiness of the structure [1, 2]. As larger finite element models (FEM) are developed, joints are typically ... -
Biologically motivated quantum neural networks
(IEEE, 2017)This paper presents one step toward creating the building blocks for machine intelligence that is inspired by its biological equivalent. The authors' quantum learning methods (deep quantum learning) are applied to quantum ... -
PDE-based analysis of automotive cyber-attacks on highways
(IEEE, 2017-05)This paper considers scenarios wherein a group of malicious vehicles on a highway perform a cooperative attack with the motive of creating undesirable wave effects among other vehicles on the highway. The two species of ... -
A decentralized adaptive control architecture for large-scale active-passive modular systems
(IEEE, 2017-05)Decentralized control of large-scale active-passive modular systems is considered. These systems consist of physically interconnected and generally heterogeneous modules, where local control signals can be only applied to ...
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