Mechanical Engineering
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Investigation of mechanical and microstructural properties of welded specimens of aa6061-t6 alloy with friction stir welding and parallel-friction stir welding methods
(MDPI, 2021-10-12)The present study investigates the effect of two parameters of process type and tool offset on tensile, microhardness, and microstructure properties of AA6061-T6 aluminum alloy joints. Three methods of Friction Stir Welding ... -
Improvement of mechanical and wear behavior by the development of a new tool for the friction stir processing of Mg/B4C composite
(Elsevier, 2021-11-25)Large and irregular particle sizes of B4C in the Mg matrix are performance-impeding challenges of the as-cast Mg-B4C composites. In an attempt to overcome this, the secondary solid-state friction stir processing of the ... -
Organic conjugated polymers and polymer dots as photo-catalysts for hydrogen production
(Springer Nature, 2021-07-30)Owing to the outstanding characteristics of tailorable electronic and optical properties, semiconducting polymers have attracted considerable attention in recent years. Among them, organic polymer dots process large breadth ... -
Thermo-mechanical simulation of underwater friction stir welding of low carbon steel
(MDPI, 2021-08-30)This article investigates the flow of materials and weld formation during underwater friction stir welding (UFSW) of low carbon steel. A thermo-mechanical model is used to understand the relation between frictional heat ... -
Uncertain gain and time-delay control of 300-kW SOFC-GT
(ASME, 2021-08-18)This paper presents a Proportional Integral Derivative (PID) controller design with the presence of an uncertain internal gain and additional time delay in the forward path of a 300 kW Solid Oxide Fuel Cell-Gas Turbine ... -
Effects of FSW tool plunge depth on properties of an Al-Mg-Si alloy T-joint: Thermomechanical modeling and experimental evaluation
(MDPI, 2021-08-23)One of the main challenging issues in friction stir welding (FSW) of stiffened structures is maximizing skin and flange mixing. Among the various parameters in FSW that can affect the quality of mixing between skin and ... -
Analysis of wayfarer side, front and rear impact with a lightweight pickup truck at center and front corners
(Wichita State University, 2021-07)Wayfarer injuries and fatalities in the United States has taken an uprise in the past few decades. According to the data estimated by National Highway Traffic Safety Association (NHTSA), there are severe pedestrian injuries ... -
Impact of building systems usage on indoor particulate matter $(PM_{2.5})$ concentration in residential buildings
(Wichita State University, 2021-07)Indoor air quality (IAQ) is essential because people spend up to 90% of their time indoors. There are various sources of indoor air pollutants, including combustion, building materials, and outdoor air pollution. Particulate ... -
Exploration of integrated solar supercapacitor devices for solar energy conversion and storage
(Wichita State University, 2021-07)As the world’s population is growing and moving towards the modernization, the demand of energy is gradually increasing every day. At the current rate of consumption of energy, the demand is to be increased by 65% by the ... -
Dynamics of and injury assessment to occupants in high-speed planing boats under pure vertical loading condition using a human body model with active muscle behavior
(Wichita State University, 2021-07)In the maritime industry, with special emphasis on military and rescue operations, often situations arise where a rapid response is required. During these periods, the use of high-speed planing crafts is of utmost ... -
Development of an adaptive exoskeleton for upper arm rehabilitaion
(Wichita State University, 2021-07)Assistive technologies such as robotic and exoskeleton devices are utilized to aid in Activities of Daily Living (ADLs) and in rehabilitation tasks to alleviate and restore some of the lost degrees-of-freedoms (DOFs). ... -
Enhanced two-phase cooling using bi-particle-size sintered particle evaporator with distributed liquid supply capillary wicks
(Wichita State University, 2021-08)Liquid-vapor, phase-change heat transfer using wicks can provide reliable and high heat flux cooling capability, especially in microgravity applications. However, the maximum heat removal capacity, also known as Critical ... -
Applications of tungsten sulfide/carbon nanocomposites in thirdgeneration solar cells and their techno-economic analysis
(Wichita State University, 2021-07)Being confronted with the energy crisis and environmental problems, the exploration of clean and renewable energy materials is urgently demanded. Dye-sensitized solar cells (DSSCs) have attracted widespread attention as ... -
An investigation of a novel LuGre-based friction force model
(Elsevier, 2021-12-01)The LuGre friction force models are amongst the most popular and powerful approaches to treat frictional contact in modeling, simulation and control of mechanical systems. However, these friction force models have some ... -
Planetary gear train microcrack detection using vibration data and convolutional neural networks
(Springer Nature, 2021-07-07)Planetary gear trains (PGTs) are widely used in many industrial applications from wind turbines to automobile transmissions due to their high power-to-weight ratio. Since PGT can be subjected to faults and prone to failure ... -
Investigating the effects of metallic submicron and nanofilms on fiber-reinforced composites for lightning strike protection and EMI shielding
(Springer Nature, 2020-01-27)Lightning strike protection (LSP) and electromagnetic interference (EMI) shielding topics have been extensively investigated, since composite material was first introduced to an aircraft a few decades ago. Generally, ... -
Enhanced wickability of bi-particle-size, sintered-particle wicks for high-heat flux two-phase cooling systems
(Elsevier, 2021-11-01)Two-phase thermal management systems such as heat pipes and vapor chambers offer high heat flux cooling performance in modern electronics and spacecrafts. However, the cooling performance is limited by poor wickability, ... -
Analysis of friction stir welding tool offset on the bonding and properties of al–mg–si alloy t-joints
(MDPI, 2021-06-28)Research on T-configuration aluminum constructions effectively decreases fuel consumption, increases strength, and develops aerial structures. In this research, the effects of friction stir welding (FSW) tool offset (TO) ... -
Modification of the Wiebe function for methane-air and oxy-methane- based spark-ignition engines
(Elsevier, 2021-11-01)Predictive combustion models assess engine performance for given setpoints by determining the rate of heat release that is governed by the fuel mass burned. Often, simple mathematical functions such as the Wiebe function ... -
Applications of carbon nanomaterials in perovskite solar cells for solar energy conversion
(KeAi Communications Co., 2021-04-23)The energy issues and environmental concern have led to intense research activities in renewable energy conversion, such as photovoltaic (PV) to convert solar energy into electricity. Perovskite solar cells (PSCs) based ...
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