Yazar "İpekoğlu, Mehmet" için listeleme
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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. ... -
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 ... -
Development of acoustic simulation method for brake squeal based on experiments in the test bench
Tozkoparan, Ömer Anıl (Türk-Alman Üniversitesi, 2017)Brake squeal is a friction-induced high frequency (beyond 1kHz) noise problem that is observed in automotive disc brake systems. As opposed to other friction-induced noise and vibration problems, it is a dynamic instability ... -
Development of metal-composit hybrid joint for truck fender components
Hacıoğlu, Mertcan (Türk-Alman Üniversitesi, 2019)The lightweight design is a general concern in many industries. The aim is reducing the weight without any loss of strength and durability. Fiber reinforced composite materials come forward due to their high stiffness to ... -
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 ... -
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 ... -
The effects of grain refinement on the mechanical properties of aluminium cast alloys used in automotive industry
Özaydın, Onur (Türk-Alman Üniversitesi, 2015)İkincil dendrit kol boyu uzunlukları (SDAS) gibi mikro yapısal parametreler alüminyum dökümlerinin mekanik ve yorulma özelliklerini etkilerler. Bu parametrelerin boyutları Ti ve B gibi farklı tane inceltme elementlerine ... -
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 ... -
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 ... -
Experimental and numerical analysis of deep drawability of aluminium alloys AA5754-H22 and AA6061-T6
Erbaş, Onur (Türk-Alman Üniversitesi, 2014)In the recent years sheet metal forming technologies are challenged by the higher fuel economy and concerns about global warming in the automotive industry. Deep drawing is one of the most commonly used sheet metal forming ... -
Investigation of longitudinal distortion occurring in Acrylonitrile butadiene styrene copolymer (ABS) extrusion profiles
Karakaş, Sercan (Türk-Alman Üniversitesi, 2019)Bu çalışmada, akrilonitril-bütadien-stiren (ABS) ekstrüzyon profillerinin boylamsal distorsiyonu deneysel olarak incelenmiştir. Boyuna bozulma, çoğunlukla ekstrüzyon profillerinde görülen bir sorundur. Muz gibi görünen ... -
Layshaft design & material characterization of a heavy duty vehicle's manual transmission
Alkan, Gökhan (Türk-Alman Üniversitesi, 2017)Bu tez, ağır vasıtalar için manuel transmisyonlarında, karşıt mil ya da ara mil için optimum malzeme seçimi ve dizayn optimizasyonu yapılmasında yön göstermeyi amaçlamıştır. Tez kapsamında, amaçlanan manuel transmisyonun ... -
Mechanical characterization of B4C reinforced aluminum matrix composites produced by squeeze casting
İpekoğlu, Mehmet; Nekouyan, Amin; Albayrak, Önder; Altıntaş, Sabri (Cambridge Univ Press, 2017)Boron carbide (B4C) ceramic particles were used as reinforcement material to produce aluminum (Al) matrix composites by squeeze casting method. Four different B4C contents as 0, 3, 5, and 10 wt%, and three different squeeze ... -
Morphological, microstructural and photocatalytic characterization of undoped and Ni, Co doped Fe2O3 particles synthesized by sonochemical method
Kaya, Elif Emil; Evren, Burak; Erdöl, Zeynep; Ekinci, Duygu; İpekoğlu, Mehmet; Özenler, Sibel (Scientific & Technical Research Council Turkey-TUBITAK, 2022)In this study, an abundant and eco-friendly photocatalytic material, Fe2O3 particles were synthesized by sonochemical method. Morphological and microstructural investigations of synthesized undoped and Ni, Co-doped Fe2O3 ... -
Numerical investigation of the effect of process parameters to optimize a superplastic forming process
Sedes, Elif (Türk-Alman Üniversitesi, 2017)Superplastic forming (SPF) is an alternative manufacturing method to produce complex shapes in one step without assembling operations which are not possible with other methods. SPF process enables to get near net shape ... -
Preparation and characterization of porous hydroxyapatite pellets: effects of calcination and sintering on the porous structure and mechanical properties
Albayrak, Önder; İpekoğlu, Mehmet; Mahmutyazıcıoğlu, Nazım; Varmış, Mehmet; Kaya, Emrah; Altıntaş, Sabri (Sage Publications Ltd, 2016)In this study, porous hydroxyapatite structures were produced by using urea particles of 600-850 mu m size. Samples with two different urea composition (25 and 50 wt%) were prepared along with samples without any urea ... -
Strain hardening reduces energy absorption efficiency of austenitic stainless steel foams while porosity does not
Kaya, Ali Can; Zaslansky, Paul; İpekoğlu, Mehmet; Fleck, Claudia (Elsevier Sci Ltd, 2018)Strain hardening significantly affects the mechanical function of steel foams. We compare hardening and failure of two commercially available austenitic stainless steel foams (316L and 310) spanning strut porosities of 9.4 ... -
Üretim parametrelerinin hidroksiapatit tozlarının özellikleri ve kaplama kalitesi üzerindeki etkilerinin incelenmesi
Biyomedikal uygulamalarda yaygın olarak kullanılan metal implantlar, çevre dokularla hızlı ve sağlıklı entegrasyonun sağlanması amacıyla, biyouyumluluğu yüksek malzemeler ile kaplanmaktadır. Kaplama malzemeleri arasında, ...
