Baltacıoğlu, Mehmet Furkan
Loading...
Profile URL
Name Variants
Baltacioglu, Mehmet Furkan
Baltacıoğlu, Mehmet Furkan
MF Baltacioglu
Baltacıoğlu, Mehmet Furkan
MF Baltacioglu
Job Title
Arş. Gör.
Email Address
furkan.baltacioglu@agu.edu.tr
Main Affiliation
02.06. Makine Mühendisliği
Status
Current Staff
Website
ORCID ID
Scopus Author ID
Turkish CoHE Profile ID
Google Scholar ID
WoS Researcher ID
Sustainable Development Goals
SDG data is not available
Documents
4
Citations
18
h-index
2
Documents
4
Citations
17
Scholarly Output
6
Articles
4
Views / Downloads
336/164
Supervised MSc Theses
1
Supervised PhD Theses
1
WoS Citation Count
17
Scopus Citation Count
18
WoS h-index
2
Scopus h-index
2
Patents
0
Projects
2
WoS Citations per Publication
2.83
Scopus Citations per Publication
3.00
Open Access Source
2
Supervised Theses
2
Google Analytics Visitor Traffic
| Journal | Count |
|---|---|
| International Journal of Hydrogen Energy | 1 |
| Journal of Engineering Materials and Technology-Transactions of the Asme | 1 |
| Materials Research Express | 1 |
| Materials Testing | 1 |
Current Page: 1 / 1
Scopus Quartile Distribution
Competency Cloud
Scholarly Output Search Results
Now showing 1 - 6 of 6
Master Thesis Oturup Kalkma ve Yürüme için Hafif Ağırlıklı ve Kompakt Diz Ayak Bileği Yardımcı Alet Tasarımı(Abdullah Gül Üniversitesi, 2018) FURKAN BALTACIOĞLU, MEHMET; Baltacıoğlu, Mehmet Furkan; Ünal, RamazanBu çalışmada yürüme, oturup kalkma ve merdiven çıkma için konsept yarı-aktif transfemoral protez tasarımı sunulmuştur. Bu çalışmada literatürde bulunan insan dataları analiz edilmiştir ve bu datalar doğrultusunda ilk olarak konsept dizayn sunulmuştur. Bu konsept dizayn 3 boyutlu yazıcı yardımıyla üretilmiştir. Bundan sonra, yapılmış olan model doğrultusunda çalışma modifiye edilmiştir. Ayrıca, protezdeki yaylar teorik olarak hesaplanmıştır. Yapısal parametreler doğrultusunda sonlu elemanlar metodu kullanılarak protez analiz edilmiştir. Ve protezdeki parçalar topoloji optimizasyon metodu kullanılarak yapısal olarak optimize edilmiştir.Article Citation - WoS: 4Citation - Scopus: 4A Phenomenological Hydrogen Induced Edge Dislocation Mobility Law for Bcc Fe Obtained by Molecular Dynamics(Pergamon-Elsevier Science Ltd, 2024) Baltacioglu, Mehmet Furkan; Kapci, Mehmet Fazil; Schoen, J. Christian; Marian, Jaime; Bal, BurakInvestigating the interaction between hydrogen and dislocations is essential for understanding the origin of hydrogen-related fractures, specifically hydrogen embrittlement (HE). This study investigates the effect of hydrogen on the mobility of 1/2<111>{110} and 1/2<111>{112} edge dislocations in body-centered cubic (BCC) iron (Fe). Specifically, molecular dynamics (MD) simulations are conducted at various stress levels and temperatures for hydrogen-free and hydrogen-containing lattices. The results show that hydrogen significantly reduces dislocation velocities due to the pinning effect. Based on the results of MD simulations, phenomenological mobility laws for both types of dislocations as a function of stress, temperature and hydrogen concentration are proposed. Current findings provide a comprehensive model for predicting dislocation behavior in hydrogencontaining BCC lattices, thus enhancing the understanding of HE. Additionally, the mobility laws can be utilized in dislocation dynamics simulations to investigate hydrogen-dislocation interactions on a larger scale, aiding in the design of HE-resilient materials for industrial applications.Article Tuning Mechanical Performance of PCL Scaffolds: Influence of 3D Bioprinting Parameters, Polymer Concentration, and Solvent Selection(IOP Publishing Ltd, 2025) Ceylan, Saniye Aylin; Baltacioglu, Mehmet Furkan; Bal, Burak; Bayram, Ferdi Caner; Isoglu, Ismail AlperThe mechanical performance of three-dimensional (3D) bioprinted scaffolds is susceptible to printing parameters and material formulation. In this study, poly (epsilon-caprolactone) (PCL) scaffolds were fabricated using four different polymer concentrations (10%, 25%, 50%, and 75% w/v) to investigate how these variations, along with process parameters, influence mechanical behavior. Maintaining the structural integrity of bioprinted constructs requires careful optimization of polymer concentration and precise control over parameters such as printing speed, pressure, and infill density. Tensile tests were conducted to evaluate the effects of these variables. Among the tested conditions, a 50% (w/v) concentration allowed for a broader operational window, enabling fabrication across a range of printing speeds and pressures. At a printing speed of 5 mm s-1, PCL-DCM exhibited a Young's modulus of 39.0 MPa, while PCL-CF samples printed at 10 mm s-1 achieved the highest modulus of 32.0 MPa. Notably, when the printing speed was kept constant, applying higher pressures led to an increase in Young's modulus, suggesting that pressure plays a key role in enhancing scaffold stiffness. When comparing the 50% and 75% (w/v) polymer concentrations, the 50% (w/v) formulation stood out by offering both higher elongation and greater stiffness, which makes it particularly suitable for load-bearing applications. These findings provide a quantitative framework for optimizing extrusion-based bioprinting of PCL scaffolds, with implications for customized biomedical implants and regenerative medicine.Article Hydrogen Susceptibility of Al 5083 Under Ultra-High Strain Rate Ballistic Loading(Walter de Gruyter Gmbh, 2024) Baltacioglu, Mehmet Furkan; Mozafari, Farzin; Aydin, Murat; Cetin, Baris; Oktan, Aynur Didem; Teoman, Atanur; Bal, BurakThe effect of hydrogen on the ballistic performance of aluminum (Al) 5083H131 was examined both experimentally and numerically in this study. Ballistics tests were conducted at a 30 degrees obliquity in accordance with the ballistic test standard MIL-DTL-46027 K. The strike velocities of projectiles were ranged from 240 m s-1 to 500 m s-1 level in the room temperature. Electrochemical hydrogen charging method was utilized to introduce hydrogen into material. Chemical composition of material was analyzed using energy dispersive X-ray (EDX) analysis. Instant camera pictures were captured using high-speed camera to compare H-uncharged and H-charged specimen ballistics tests. The volume loss in partially penetrated specimens were assessed using the 3D laser scanning method. Microstructural examinations were conducted utilizing scanning electron microscopy (SEM). It was observed that with the increased deformation rate, the dominance of the HEDE mechanism over HELP became evident. Furthermore, the experimental findings were corroborated through numerical methods employing finite element analysis (FEM) along with the Johnson-Cook plasticity model and failure criteria. Inverse optimization technique was employed to implement and fine-tune the Johnson-Cook parameters for H-charged conditions. Upon comparing the experimental and numerical outcomes, a high degree of consistency was observed, indicating the effective performance of the model.Article Citation - WoS: 13Citation - Scopus: 14The Effect of Strain Rate on the Hydrogen Embrittlement Susceptibility of Aluminum 7075(ASME, 2023) Baltacioglu, Mehmet Furkan; Cetin, Baris; Bal, BurakThe effects of changing the strain rate regime from quasi-static to medium on hydrogen susceptibility of aluminum (Al) 7075 were investigated using tensile tests. Strain rates were selected as 1 s(-1) and 10(-3) s(-1) and tensile tests were conducted on both hydrogen uncharged and hydrogen charged specimens at room temperature. Electrochemical hydrogen charging method was utilized and the diffusion length of hydrogen inside Al 7075 was modeled. Material characterizations were carried out by X-ray diffraction (XRD) and energy dispersive X-ray spectroscopy (EDX) and microstructural observations of hydrogen uncharged and hydrogen charged specimens were performed by scanning electron microscope (SEM). As opposed to earlier studies, hydrogen embrittlement (HE) was more pronounced at high strain rate cases. Moreover, hydrogen enhanced localized plasticity (HELP) was the more dominant hydrogen embrittlement mechanism at slower strain rate but coexistence of hydrogen enhanced localized plasticity and hydrogen enhanced decohesion was observed at a medium strain rate. Overall, the current findings shed light on the complicated hydrogen embrittlement behavior of Al 7075 and constitute an efficient guideline for the usage of Al 7075 that can be subject to different strain rate loadings in service.Doctoral Thesis Malzemelerin Mekanik Özellikleri Üzerinde Hidrojenin Etkisi(2024) Baltacıoğlu, Mehmet Furkan; Bal, BurakBu çalışmada, hidrojenin farklı mekanik yükleme koşulları ve gerinim hızları altında alüminyum alaşımları ve hacim merkezli kübik (HMK) demir üzerindeki etkisini incelemektedir. İlk olarak, Al 7075'in hidrojen duyarlılığı, yavaş ve orta gerinim hızlarında yapılan çekme testleri ile değerlendirilmiştir. Sonuçlara göre, daha yüksek gerinim hızlarında hidrojen gevrekliği, yavaş gerinim hızlarına göre daha baskındır. Hidrojen gevrekliği mekanizması, düşük hızlarda hidrojenle desteklenen lokalize plastisite (HELP) iken, orta hızlarda HELP ve hidrojenle desteklenen ayrışmanın (HEDE) bir arada bulunması yönünde değişiklik göstermektedir. İkinci çalışmada, Al 5083'ün hidrojen duyarlılığı, balistik testler altında deneysel ve sayısal yöntemler kullanılarak incelenmiştir. Sonuçlara göre, artan deformasyon hızlarında HEDE'nin HELP üzerindeki baskınlığı artmaktadır. Sonlu elemanlar yöntemi, Johnson-Cook modeli ile birleştirilerek deneysel sonuçları doğrulamış ve balistik uygulamalarda hidrojenle yüklenmiş koşullar için öngörücü bir model sunmuştur. Son olarak, moleküler dinamik simülasyonları kullanılarak, hacim merkezli demirdeki kenar dislokasyon hareketliliği, geniş bir sıcaklık, hidrojen konsantrasyonu ve gerilme seviyesi aralığında değerlendirilmiş ve hidrojen duyarlılığı araştırılmıştır. Çalışmadan elde edilen bulgular sonucunda fenomenolojik hareketlilik yasaları önerilmiştir. Bu çalışmalar, hidrojenin metaller üzerindeki etkisini değişen mekanik koşullar altında anlamaya katkıda bulunarak, hidrojen maruziyetinin söz konusu olduğu mühendislik uygulamaları için önemli çıktılar sunmaktadır.
