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Failure analysis of graphene sheets with multiple Stone-Thrower-Wales defects using molecular mechanics based nonlinear finite element models
(Hitit Üniversitesi Fen Bilimleri Enstitüsü, 2018-06-09)
Experimental studies show that Stone-Thrower-Wales (STW) defects generally exist in graphene sheets (GSs) and these defects considerably affect the fracture strength of GSs. Thus, prediction of failure modes of GSs with ...
Effect of coating material on wear in internal gears
(Materials and Energy Research Center, 2017)
Theoretical and experimental investigation of wear during coupling in internal gears coated with various polymeric coating materials was performed in this study. In the theoretical part of the study, Archards' wear formulation ...
Heat transfer characteristics of longitudinal perforated and unperforated ribs under impingement jets
(American Society of Mechanical Engineers (ASME), 2014)
Impingement heat transfer is considered as heat transfer enhancement technique. Impinging jets are used in many applications where high heat transfer rates are required. An experimental study was conducted to investigate ...
Energy absorption of thin-walled tubes enhanced by lattice structures
(Elsevier, 2019)
Thin-walled structures filled or covered by various materials have been proposed for energy absorption applications in recent years. At this point, additive manufacturing technologies provide an unprecedented opportunity ...
Thermal stress analysis of functionally graded disc with variable thickness due to linearly increasing temperature load
(Springer Verlag, 2013)
In this study, the elastic stress analysis of a hollow disk made of functionally graded materials was subjected to a linearly increasing temperature distribution. These disks have many applications in the aerospace industry, ...
Impact response of sandwiches with open-cell casting metal foam and GFRP skins
(Taylor and Francis Ltd., 2016)
The main advantage of using sandwich structures is their high strength, high energy absorbing capacity and high bending stiffness to weight ratio. Therefore, they are unique for the applications where the light-weight ...
Comparative thermodynamic assessment of various super- and trans-critical working fluids for low temperature power generation applications
(Gazi Üniversitesi, 2017)
Recently, energy need is exponentially increasing in the world while energy sources are decreasing rapidly. Therefore, this issue requires energy sources to be used more efficiently and urges professionals to utilize energy ...
A monitoring and control system integrated with smart phones for the efficient use of underground water resources in agricultural product growing
(Hitit University, 2017)
Monitoring and control system is very important for crop development process in agriculture zones. A structure which is carried out based on the type of the product with the knowledge of temperature and humidity values of ...
Experimental investigation of cooling performance a heat pump for near azeotropic refrigerant R404A
(Hitit University, 2017)
In this study, in order to investigate the effect of outdoor air temperatures on the performance of an air source heat pump, operated in cooling mode, using R404A refrigerant, the heat pump was tested at the outdoor air ...
Analysis of scoring resistance on coated spur gears by considering surface roughness
(Hitit University, 2017)
With the rise of velocity and momentum in machines as a result of technological developments, on gears, alongside refraction from the bottom of the gears and pitting formation, and scoring formation has showed up. In the ...