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Dr. Mehmet Erdem
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Academic Career Length
13Years (2014-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
View All Publications26 February 2017 in Journal of Mechanics in Medicine and Biology
Journal Article
1 March 2016 in Materials Testing
Journal Article
The study examines how, using wire electrical discharge machining (WEDM), the microstructural, mechanical and conductivity characteristics of the titanium alloy Ti6Al4V are changed as a result of heat treatment and the effect they have on machinability.Scanning electron microscope (SEM), optical microscope and X-ray diffraction (XRD) examinations were performed to determine various characteristics and additionally related microhardness and conductivity measurements were conducted. L18 Taquchi test design was performed with three levels and six different parameters to determine the effect of such alterations on its machinability using WEDM and post-processing surface roughness (Ra) values were determined. Micro-changes were ensured successfully by using heat treatments. Results obtained with the optimization technique of artificial neural network (ANN) presented minimum surface roughness. Values obtained by using response surface method along with this equation were completely comparable with those achieved in the experiments. The best surface roughness value was obtained from sample D which had a tempered martensite structure.
Journal Article
ÖÇÖmer Faruk Çakır
Ömer Faruk ÇakırMEMehmet Erdem
Mehmet ErdemImpact absorbers are needed in many different areas in terms of energy absorption and crashworthiness. While the design of these structures is expected to increase mechanical performance, they are expected to be lightweight, and when evaluated in this context, lattice structures come to the fore. In this study, impact absorbers, also known as crash boxes, consisting of lattice structures designed to increase energy absorption performance were fabricated by a new manufacturing method, metal powder additive manufacturing, and their mechanical performance was experimentally investigated under quasi-static axial loading, and energy absorption data were obtained. The specimens were designed from Ti6Al4V, INC 718, and AISI 316L materials by forming 18 matrix structures with square and hexagonal geometries. According to this study, the lattice structures absorbed up to 4.5 times more energy than the shell structures of a similar material group. According to the normalized values among all samples, the hexagonal sample made of Ti6Al4V material showed 4.3 times higher energy absorption efficiency. The AISI 316L material showed the best crushing performance due to its ductile structure.
12 January 2023 in Journal of Metallic Material Research
Journal Article
KGKadir Gök
Kadir GökHAHediye Deniz Ada
Hediye Deniz AdaMEMehmet Erdem
Mehmet Erdem
Arif GokKTKıvanç Topçuoğlu
Kıvanç TopçuoğluMAM. Ali Alkan
M. Ali AlkanIn this study, the reason for erosion-corrosion of drinking or mains water in the faucet was investigated by computational fluid dynamics. Pipes used in homes, the service sector, and industry are responsible for transporting different types of fluids from one place to another. Considering the faucet design, the SolidWorks program was used for 3D studies. In-faucet flow analyses were performed using Ansys Fluent, a computational fluid dynamics program based on the finite volume method. In the analyses, lime particles were chosen. At the end of the analysis, the amount of erosion in the faucet was obtained.
17 June 2014 in Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi
Journal Article
MEMehmet Erdem
Mehmet ErdemDADuran Altiparmak
Duran AltiparmakBu deneysel çalışmada, fren disk sıcaklıklarındaki artışın taşıtın frenleme performansına etkileri araştırılmıştır. Bu amaçla, frenleme performansının en önemli göstergesi olan durma mesafesi testleri yapılmıştır. Testler, bir hafif ticari taşıtta, değişik disk sıcaklıkları, pedal kuvvetleri, taşıt yükleri ve başlangıç hızlarında gerçekleştirilmiştir. Yapılan fren etkinliği test sonuçları, fren disklerindeki sıcaklık artışının taşıtın frenleme mesafesini olumsuz etkilediğini göstermiştir. Farklı pedal kuvvetleri, frenleme başlangıç hızları ve taşıt yükü değişimlerine göre değerlendirilen sonuçlardan, disk sıcaklığındaki artışın frenleme mesafesini artırdığı gözlenmiştir. Tipik bir yol testi sonucu olarak; 80 km/h hızla ve maksimum pedal kuvvetiyle 63ºC fren disk sıcaklığında taşıt 44,9 m’de dururken, 298 ºC disk sıcaklığında durma mesafesi %17,4 oranında artarak 52,71 m olarak ölçülmüştür.
26 December 2019 in Bilecik Şeyh Edebali Üniversitesi Fen Bilimleri Dergisi
Journal Article
Bisiklet gövdesi, tüm parçaları bir araya getiren birleştirici güçtür. Bir bisiklet gövdesinin sahip olması gereken en önemli özellik düşük ağırlığa ve yüksek dayanıma sahip olmasıdır. Ancak gövde dayanımını birçok unsur belirler. Bu çalışmada bisiklet gövdesinin statik yük analizleri yapılarak, parçaya uygulanacak kuvvetlere karşı güvenilirliği hesaplanmıştır. Araştırmada bisiklet gövdesinin 3 boyutlu geometrik modeli, diğer bisiklet gövdelerinden özgün olarak bilgisayar destekli tasarım programı olan SolidWorks yardımıyla gerçekleştirilmiştir. Çalışmada, bisiklet gövdesinin uygulanan kuvvetler altındaki statik tepkilerini ölçmek için Sonlu Elemanlar Yöntemi kullanılmıştır. Sonuç olarak tasarımı yapılan bisiklet gövdesinin uygulanan kuvvetler altında güvenli olduğu ortaya çıkmış ve sonuçların doğruluğu ispatlanmıştır.
About Me
Dr. Mehmet Erdem completed his undergraduate education at Gazi University, Faculty of Technical Education, Department of Mechanical Education, in 1990. He pursued his graduate studies, earning both his master’s and doctorate degrees, at the Institute of Science of the same university. Currently, Dr. Erdem serves as an assistant professor and the head of the Department of Mechanical and Metal Technologies at Kütahya Dumlupınar University Vocational School of Technical Sciences. Additionally, he has been fulfilling the role of Director of the Vocational School for over seven years. Dr. Erdem’s areas of expertise include Vehicle Technologies, Machine Design, Production Technologies, and Accident Investigations. He has authored numerous national and international articles and conference papers in these fields. Beyond his publications, Dr. Erdem has actively contributed to his discipline by delivering various seminars. Dr. Erdem, who teaches at Associate, Undergraduate, and Master's levels on subjects within his areas of expertise, has also successfully supervised and graduated three Master's students. He is a member of the Association of Automotive Engineers and is proficient in English.