Yazar "TAÜ, Mühendislik Fakültesi, Makine Mühendisliği Bölümü" için listeleme
-
Additive manufacturing technologies and its future in industrial applications
İyibilgin, Osman; Gepek, Engin (Universiti Tun Hussein Onn Malaysia, 2021)Additive manufacturing technologies have developed rapidly in the last ten years and have become a technology with significant advantages compared to traditional manufacturing. Depending on discovering new materials and ... -
Calibration-free extraction of constitutive parameters of magnetically coupled anisotropic metamaterials using waveguide measurements
Hasar, Uğur Cem; Buldu, Gül; Bute, Musa; Muratoğlu, Abdurrahim (Amer Inst Physics, 2017)A calibration-free method for extraction of electromagnetic properties of magnetically coupled anisotropic biaxial metamaterial (MM) slabs from waveguide measurements is proposed. It relies on three measurement steps (thru, ... -
Characterization of CP-Titanium produced via binder jetting and conventional powder metallurgy
İyibilgin, Osman; Gepek, Engin (CSIC-Consejo Superior Investigaciones Cientificas, 2022)Titanium (Ti) and its alloys are among the most commonly used materials in biomedical applications. In addition to being biocompatible, these materials have notable low density and high corrosion resistance and mechanical ... -
Characterization of stress softening and self-healing in a double network hydrogel
Külcü, İsmail Doğan (Elsevier, 2019)In this paper, a micro-mechanically based constitutive model is presented to describe stress softening and self-healing in alginate-polyacrylamide (PAAm) double network (DN) hydrogels. The stress softening phenomenon in ... -
Comparison of deep drawability of AA5754-H22 and AA6061-T6 aluminum alloys for automotive applications
İpekoğlu, Mehmet; Erbaş, Onur; Ul Hassan, Hamad (Carl Hanser Verlag, 2017)Being one of the most commonly applied sheet metal forming processes in automotive industry, deep drawing technologies are challenged by the concerns of global warming for higher fuel economy requirements in the recent ... -
A Compressor model to determine cooling cycle efficiencies and performances without or with internal heat exchanger for specific refrigerant
Today, the importance of refrigeration has increased due to the shortage of food, food storage, health, and industrial cooling. Global warming is the most important environmental problem that the world has faced recently. ... -
A constitutive model for hysteresis: the continuum damage approach for filled rubber-like materials
Külcü, İsmail Doğan; Tanriverdi, Halil Ibrahim (Springer, 2020)In this contribution, a constitutive model is proposed for filled rubber-like materials to describe hysteresis. The model is based on the network decomposition concept. Rubber matrix is decomposed into purely elastic and ... -
Cooling performance prediction of a metal foam internal heat exchanger: An artificial neural network approach
Although HFC refrigerants have high global warming potential (GWP) values, they are preferred due to their satisfactory cooling performance and A1 fire protection classification. If possible, alternatives of HFC-type ... -
Core-shell PVA/gelatin nanofibrous scaffolds using co-solvent, aqueous electrospinning: toward a green approach
Şengör, Mustafa; Özgün, Alp; Çorapçıoğlu, Gülcan; İpekoğlu, Mehmet; Garipcan, Bora; Ersoy, Nuri; Altıntaş, Sabri (Wiley, 2018)Electrospinning (ES) of gelatin often requires cytotoxic organic solvents or acidic environments, which deteriorate cell recognition sites. In this study, aqueous, non-toxic, co-solvent ES was performed to obtain core-shell ... -
Cutting performance improvement of MTCVD coated cemented carbide inserts via appropriate heat treatment
Skordaris, Georgios; Bouzakis, Konstantinos Dionysios; Stergioudi, Fani; Kouparanis, Stefanos; Boumpakis, Apostolos; Bouzakis, A. (Elsevier, 2020)The softening of cemented carbide at the elevated temperature of MTCVD processes results in significant reduction of their strength, and thus, high coating deformation during cutting. In this way, at interrupted cutting ... -
Effect of coating method on the surface characteristics of niti shape memory alloy
Şimşek, Görkem Muttalip; İpekoğlu, Mehmet; Yapıcı, Güney Güven (Trans Tech Publications Ltd, 2020)Metallic materials including stainless steel, cobalt-chromium alloys, titanium and its alloys, and nickel-titanium (NiTi) shape memory alloys have been used in biomedical applications since the 1940s due to their favorable ... -
Effect of polymer coating on vapor condensation heat transfer
Budaklı, Mete; Salem, Thamer Khalif; Arık, Mehmet; Dönmez, Barca; Menceloğlu, Yusuf (Asme, 2020)Condensation heat transfer coefficients (HTCs) are rather low compared to thin film evaporation. Therefore, it can be a limiting factor for designing heat transfer equipment. In this work, heat transfer characteristics of ... -
Effect of the crystallinity of diamond coatings on cemented carbide inserts on their cutting performance in milling
Skordaris, Georgios; Bouzakis, Konstantinos Dionysios; Kotsanis, Tilemachos; Boumpakis, Apostolos; Stergioudi, Fani; Christofilos, Dimitrios; Woda, M. (Elsevier Science Bv, 2019)Micro-crystalline diamond (MCD) coatings were deposited on cemented carbide inserts at different temperatures using hot filament chemical vapor deposition technique. For investigating the effect of the developed diamond ... -
Effects of alumina (Al2O3) addition on the cell structure and mechanical properties of 6061 foams
Mahmutyazıcıoğlu, Nazım; Albayrak, Önder; İpekoğlu, Mehmet; Altıntaş, Sabri (Cambridge Univ Press, 2013)In this study, a powder blend representing 6061 Al-alloy was first mixed with Al2O3 ceramic particles and then foamed by using the powder compact melting method. 6061-Al2O3 foams and control specimens 6061 foams (without ... -
Evaluation of NaOH pre-treatment on the corrosion behavior and surface characteristics of hydroxyapatite coated NiTi alloy
Şimşek, Görkem Muttalip; İpekoğlu, Mehmet; Yapıcı, Güney Güven (Springer Heidelberg, 2020)Successful short-term implementation of nickel-titanium (NiTi) alloys as implants has been a motivation for the development of long-term applications. However, rendering these as safe implant materials is challenging. The ... -
An experimental and analytical study on the influence of superhydrophobic micro-textured surfaces on liquid wetting phenomena
Salem, Thamer Khalif; Budaklı, Mete; Şahan, Oğuz; Arık, Mehmet (Elsevier Science Bv, 2018)Controlling dust, particle, gas or liquid attachment or motion over the surfaces is attracting many researchers to reduce losses or reach mission-specific goals. Therefore, researchers have been developing novel surfaces ... -
Experimental and computational investigation of disc brake squeal
Tozkoparan, Ömer Anıl; Yenerer, Hakan; Şen, Osman Taha; Güneş, Sunay; Özmen, Başaran; Haack, Matthias; Walther, Frank; İpekoğlu, Mehmet (Institute of Noise Control Engineering, 2017)In this paper, the high frequency noise problem brake squeal observed in automotive disc brake systems is experimentally and computationally investigated. Firstly, modal testing on the components of the brake system (brake ... -
An experimental and theoretical analysis of vapor-to-liquid phase change on microstructured surfaces
Budaklı, Mete; Salem, Thamer Khalif; Arık, Mehmet (Pergamon-Elsevier Science Ltd, 2020)In this work, an experimental and a theoretical study was carried out on condensation heat transfer on vertically aligned bare unstructured, micro V-grooved and square-grooved copper substrates. During the experiments, ... -
An experimental investigation into frost accumulation over vertical finned and unfinned surfaces during impinging air flow
Öksüz, Enes Abdülhakim; Saygın, Alper; Başol, Altuğ M.; Budaklı, Mete; Arık, Mehmet (American Society of Mechanical Engineers, 2020)Frost formation on evaporators negatively affects the cooling performance of refrigerators. It increases the thermal resistance between the refrigerant and air leading to a reduction in the system cooling capacity. In this ... -
An experimental study on the heat transfer and wettability characteristics of micro-structured surfaces during water vapor condensation under different pressure conditions
Budaklı, Mete; Salem, Thamer K.; Arık, Mehmet; Dönmez, Barca; Menceloğlu, Yusuf (Elsevier Ltd, 2021)In this study, condensation characteristics of water vapor on micro-structured surfaces at different pressures and subcooling temperature has been investigated experimentally. This work represents a basic study in order ...
