Doç. Dr. Ahmet Sinan ÖKTEM
Makine Mühendisliği

Ahmet Sinan ÖKTEM
Telefon
(262) 6052786
E-Posta
sinan.oktemgtu.edu.tr
Web sayfası
http://www.gtu.edu.tr/tr/personel/351/854756985/display.aspx
Ofis
H2 Blok, Z11
Çalışma alanları
İleri Malzemeler ve Yapısal Analizleri, Analitik ve Nümerik (FEA,Meshless) Yöntemler, Nano ve Mikro Yapıdaki Malzemelerin Üretimi-Analizi, Yenilenebilir Enerji Sistemlerinin Tasarımı ve Analizi

Journal Yayınlar:

1. Thermal conductivity and mechanical properties of graphene-like BC2, BC(3)and B4C3, Senturk, Ahmet Emin; Oktem, Ahmet Sinan; Konukman, Alp Er S. MOLECULAR SIMULATION;Published:JUL 1 2020

2. The influences of boron doping in various defect sites on the thermo-mechanical properties of armchair graphene nanoribbons, Senturk, Ahmet Emin; Oktem, Ahmet Sinan; Konukman, Alp Er S. EUROPEAN PHYSICAL JOURNAL B Volume: 93 Issue: 7 Published: JUL 1 2020

3. Investigation of interfacial thermal resistance of hybrid graphene/hexagonal boron nitride, Senturk, Ahmet Emin; Oktem, Ahmet Sinan; Konukman, Alp Er S. INTERNATIONAL JOURNAL OF MECHANICS AND MATERIALS IN DESIGN Volume: 154 Pages: 727-737 Published: DEC 2019

4. Investigation of the effects of nitrogen doping within different sites of Stone-Wales defects on the mechanical properties of graphene by using a molecular dynamics simulation method, Senturk, Ahmet Emin; Oktem, Ahmet Sinan; Konukman, Alp Er Sevki JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY Volume: 34 Issue: 1 Pages: 69-78 Published: 2019

5. An investigation on the thermo-mechanical properties of boron-doped g-C3N4, Senturk, Ahmet Emin; Oktem, Ahmet Sinan; Konukman, Alp Er S. APPLIED PHYSICS A-MATERIALS SCIENCE PROCESSING Volume: 125 Issue: 1 Article Number: 53 Published: JAN 2019

6. Buckling of shear deformable polymer/clay nanocomposite columns with uncertain material properties by multiscale modeling, Oktem, Ahmet Sinan; Adali, Sarp COMPOSITES PART B-ENGINEERING Volume: 145 Pages: 226-231 Published: JUL 15 2018

7. Influence of defect locations and nitrogen doping configurations on the mechanical properties of armchair graphene nanoribbons, Senturk, Ahmet Emin; Oktem, Ahmet Sinan; Konukman, Alp Er S. JOURNAL OF MOLECULAR MODELING Volume: 24 Issue: 2 Article Number: 43 Published: FEB 2018

8. Effects of the nitrogen doping configuration and site on the thermal conductivity of defective armchair graphene nanoribbons, Senturk, Ahmet Emin; Oktem, Ahmet Sinan; Konukman, Alp Er S. JOURNAL OF MOLECULAR MODELING Volume: 23 Issue: 8 Article Number: 247 Published: AUG 2017

9. Ballistic investigation of polymer bonded borided steel sheets, Gencer, Y.; Tarakci, M.; Alankaya, V.; et al. KOVOVE MATERIALY-METALLIC MATERIALS Volume: 55 Issue: 5 Pages: 363-368 Published: 2017

10. Simply-Supported Saddle-Shaped Thick Symmetric Cross-Ply Panels: Full Surface-Parallel Boundary Constraints, Chaudhuri, Reaz A.; Oktem, A. Sinan AIAA JOURNAL Volume: 54 Issue: 7 Pages: 2194-2199 Published: JUL 2016

11. Static analysis of laminated and sandwich composite doubly-curved shallow shells, Alankaya, Veysel; Oktem, Ahmet Sinan STEEL AND COMPOSITE STRUCTURES Volume: 20 Issue: 5 Pages: 1043-1066 Published: APR 10 2016

12. Analysis of Simply-Supported Saddle-Shaped Symmetric Cross-Ply Panels with No Surface-Parallel Boundary Constraints, Chaudhuri, Reaz A.; Oktem, A. Sinan AIAA JOURNAL Volume: 54 Issue: 2 Pages: 779-+ Published: FEB 2016

13. Levy-Type Boundary Fourier Analysis of Thick Cross-Ply Panels with Negative Gaussian Curvature, Chaudhuri, Reaz A.; Oktem, Ahmet Sinan; Guedes Soares, C. AIAA JOURNAL Volume: 53 Issue: 9 Pages: 2492-2503 Published: SEP 2015

14. Beam-Column and Tie-Bar Effects in Internally Pressurized Thin Arbitrarily Laminated Cantilever Cylindrical Shells, Chaudhuri, Reaz A.; Oktem, A. Sinan; Guedes Soares, C. JOURNAL OF ENGINEERING MECHANICS Volume: 141 Issue: 3 Article Number: 04014131 Published: MAR 2015

15. Levy-Type Boundary Fourier Analysis of Thick Clamped Hyperbolic-Paraboloidal Cross-Ply Panels, Chaudhuri, Reaz A.; Oktem, A. Sinan; Guedes Soares, C. AIAA JOURNAL Volume: 53 Issue: 1 Pages: 140-149 Published: JAN 2015

16. STATIC ANALYSIS OF FUNCTIONALLY GRADED (FGM) COMPOSITE PLATES, Oktem, Ahmet Sinan JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY Volume: 29 Issue: 1 Pages: 111-120 Published: MAR 2014

17. Internally Pressurized Thin Unsymmetric Cross-Ply Cantilever Cylindrical Shells, Chaudhuri, Reaz A.; Oktem, A. Sinan; Guedes Soares, C. AIAA JOURNAL Volume: 51 Issue: 10 Pages: 2523-2526 Published: OCT 2013

18. Stress concentration/intensity around elliptical/circular cylinder shaped surface flaws in cross-ply plates and validity of St. Venant's principle in the presence of interacting singularities, Chaudhuri, Reaz A.; Sinan Oktem, A.; Guedes Soares, C. APPLIED MATHEMATICAL MODELLING Volume: 37 Issue: 3 Pages: 1362-1377 Published: FEB 1 2013

19. Boundary-discontinuous Fourier analysis of simply supported cross-ply plates, Sinan Oktem, A.; Alankaya, Veysel; Guedes Soares, C. APPLIED MATHEMATICAL MODELLING Volume: 37 Issue: 3 Pages: 1378-1389 Published: FEB 1 2013

20. Bending and free vibration analysis of isotropic and multilayered plates and shells by using a new accurate higher-order shear deformation theory, Mantari, J. L.; Oktem, A. S.; Guedes Soares, COMPOSITES PART B-ENGINEERING Volume: 43 Issue: 8 Pages: 3348-3360 Published: DEC 2012</span>

 21. Static response of functionally graded plates and doubly-curved shells based on a higher order shear deformation theory, Oktem, A. S.; Mantari, J. L.; Guedes Soares, C. EUROPEAN JOURNAL OF MECHANICS A-SOLIDS Volume: 36 Pages: 163-172 Published: NOV-DEC 2012

22. Higher order theory based Fourier analysis of cross-ply plates and doubly curved panels, Oktem, Ahmet Sinan; Guedes Soares, C. JOURNAL OF COMPOSITE MATERIALS Volume: 46 Issue: 21 Pages: 2675-2694 Published: OCT 2012

23. A new higher order shear deformation theory for sandwich and composite laminated plates, Mantari, J. L.; Oktem, A. S.; Guedes Soares, C. COMPOSITES PART B-ENGINEERING Volume: 43 Issue: 3 Pages: 1489-1499 Published: APR 2012

24. A new trigonometric layerwise shear deformation theory for the finite element analysis of laminated composite and sandwich plates, Mantari, J. L.; Oktem, A. S.; Guedes Soares, C. COMPUTERS & STRUCTURES Volume: 94-95 Pages: 45-53 Published: MAR 2012

25. ANALYSIS OF THE STATIC RESPONSE OF CROSS-PLY SIMPLY SUPPORTED PLATES AND SHELLS BASED ON A HIGHER-ORDER THEORY, Oktem, A. S.; Guedes Soares, C. MECHANICS OF COMPOSITE MATERIALS Volume: 48 Issue: 1 Pages: 65-76 Published: MAR 2012

26. Bending response of functionally graded plates by using a new higher order shear deformation theory, Mantari, J. L.; Oktem, A. S.; Soares, C. Guedes COMPOSITE STRUCTURES Volume: 94 Issue: 2 Pages: 714-723 Published: JAN 2012

27. A new trigonometric shear deformation theory for isotropic, laminated composite and sandwich plates, Mantari, J. L.; Oktem, A. S.; Guedes Soares, C. INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES Volume: 49 Issue: 1 Pages: 43-53 Published: JAN 2012

28. Static and dynamic analysis of laminated composite and sandwich plates and shells by using a new higher-order shear deformation theory, Mantari, J. L.; Oktem, A. S.; Guedes Soares, C. COMPOSITE STRUCTURES Volume: 94 Issue: 1 Pages: 37-49 Published: DEC 2011

29. Boundary discontinuous Fourier solution for plates and doubly curved panels using a higher order theory, Oktem, Ahmet Sinan; Guedes Soares, C. COMPOSITES PART B-ENGINEERING Volume: 42 Issue: 4 Pages: 842-850 Published: JUN 2011

30.</span>Higher-order theory based boundary-discontinuous Fourier analysis of simply supported thick cross-ply doubly curved panels, Oktem, Ahmet Sinan; Chaudhuri, Reaz A. COMPOSITE STRUCTURES Volume: 89 Issue: 3 Pages: 448-458 Published: JUL 2009

31. Sensitivity of the response of thick cross-ply doubly curved panels to edge clamping, Oktem, Ahmet Sinan; Chaudhuri, Reaz A. COMPOSITE STRUCTURES Volume: 87 Issue: 4 Pages: 293-306 Published: FEB 2009

32. Effect of inplane boundary constraints on the response of thick general (unsymmetric) cross-ply plates, Oktem, Ahmet Sinan; Chaudhuri, Reaz A. COMPOSITE STRUCTURES Volume: 83 Issue: 1 Pages: 1-12 Published: MAR 2008

33. Boundary discontinuous Fourier analysis of thick cross-ply clamped plates, Oktem, Ahmet Sinan; Chaudhuri, Reaz A. COMPOSITE STRUCTURES Volume: 82 Issue: 4 Pages: 539-548 Published: FEB 2008

34. Levy type Fourier analysis of thick cross-ply doubly curved panels, Oktem, Ahmet Sinan; Chaudhuri, Reaz A. COMPOSITE STRUCTURES Volume: 80 Issue: 4 Pages: 475-488 Published: OCT 2007

35. Fourier analysis of thick cross-ply Levy type clamped doubly-curved panels, Oktem, Ahmet Sinan; Chaudhuri, Reaz A. COMPOSITE STRUCTURES Volume: 80 Issue: 4 Pages: 489-503 Published: OCT 2007

36. Fourier solution to a thick cross-ply Levy type clamped plate problem, Oktem, Ahmet Sinan; Chaudhuri, Reaz A. COMPOSITE STRUCTURES Volume: 79 Issue: 4 Pages: 481-492 Published: AUG 2007

37. Levy type analysis of cross-ply plates based on higher-order theory, Oktem, Ahmet Sinan; Chaudhuri, Reaz A. COMPOSITE STRUCTURES Volume: 78 Issue: 2 Pages: 243-253 Published: APR 2007

38. Performance analysis of two stage combined heat pump system based on thermoeconomic optimization criterion, Kodal, A; Sahin, B; Oktem,AS ENERGY CONVERSION AND MANAGEMENT Volume: 41 Issue: 18 Pages: 1989-1998 Published: DEC 2000

39. Optimal performance analysis of irreversible regenerative MHD power cycles, Sahin, B; Kodal, A; Oktem,AS JOURNAL OF PHYSICS D-APPLIED PHYSICS Volume: 32 Issue: 15 Pages: 1832-1841 Published: AUG 7 1999

Konferanslar:

Senturk A.E., A.S. Oktem, A.E.Ş. Konukman (2018). “Mechanical properties of a new type of graphitic carbon nitride: a molecular dynamics study”, The International Conference on Materials Science, Machine and Automotive Engineerings and Technology in Çeşme, İzmir, TURKEY, April 10-12.

Senturk A.E., A.S. Oktem, A.E.Ş. Konukman (2018). “Investigation of thermal conductivity of a new type of graphitic carbon nitride using non-equilibrium molecular dynamics simulations”, The International Conference on Materials Science, Machine and Automotive Engineerings and Technology in Çeşme, İzmir, TURKEY, April 10-12.

SENTÜRK AHMET EMIN, ÖKTEM AHMET SINAN, KONUKMAN ALPER SEVKI (2017). Influence of the Nitrogen Doping Site in Stone-Wales Defect on the Thermal Condcutivity of Zigzag Graphene Nanoribbons. 2nd International Conference on Materials Science and Technology in Cappadocia

Sener Özcan,SENTÜRK AHMET EMIN,KONUKMAN ALPER SEVKI,ÖKTEM AHMET SINAN (2017). Determination of the Mechanical Properties of a Single Layered Graphene Sheets Using Atomic-Scale Finite Element Method. 2nd International Conference on Materials Science and Technology in Cappadocia

ÖKTEM AHMET SINAN, GÜLVER YUSUF FUAT (2017). On Boundary Discontinuous Fourier Analysis of Laminated Composite Structures. International Conference on Mathematics and Mathematics Education (ICMME-2017)

Algül İ., Kurtaran H. and Öktem A. S., " Static Analysis of Arbitrarily Laminated Composite Cantilever Panels with Chebyshev Collocation Method", 9. Ankara International Aerospace Conference, ODTÜ, Ankara/Turkey, 20-22 Eylül 2017

SENTÜRK AHMET EMIN, ÖKTEM AHMET SINAN, KONUKMAN ALPER SEVKI (2016). Comparing the Effects of Concentration of Stone Wales and Vacancy Defects on the Mechanical Properties of Graphene at Various Temperatures. 12th International Nanoscience and Nanotechnology
Conference

R. A. Chaudhuri and A. Sinan Oktem, “Levy-Type Boundary Fourier Analysis of Thick Cross-ply Panels with Negative Gaussian Curvature,” IMECE2016-65281, ASME International Mechanical Engineering Congress & Exposition in Phoenix, AZ, Nov. 11-17, 2016. Conference Paper, Refereed, Presented, 11/14/2016.

ÖKTEM AHMET SINAN, Sarp Adalı (2015). MULTISCALE STUDY OF BUCKLING OF A NANOCOMPOSITE ORTHOTROPIC COLUMN WITH UNCERTAIN MATERIAL PROPERTIES.
Second International Conference on Composites, Biocomposites and Nanocomposites(ICCBN 2015)

KALBARAN ÖZGÜR, KURTARAN HASAN, ÖKTEM AHMET SINAN (2015). Dynamic Analysis of Composite Curved Beams on Elastic Foundation under Blast Load with Finite Difference Methods. 8th Ankara International Aerospace Conference

KALBARAN ÖZGÜR, KURTARAN HASAN, ÖKTEM AHMET SINAN (2015). Dynamic Behavior of Composite Deep Curved Timoshenko Beams under Blast Load with Numerical Methods. International Conference on Composite Structures (ICCS 18)

KARASOY TANER, ÖKTEM AHMET SINAN (2015). Thermal Buckling of Empty Closed Cylindrical Nano-Tube Viruses under External Pressure. 18th International Conference on Composite Structures, ICCS18

ÖKTEM AHMET SINAN, KARASOY TANER (2015). Dynamic Buckling of Empty Closed Cylindrical Nano-Tube Viruses under Time Depended External Pressure. International Conference on Advances in Composite Materials and Structures

Şenalp A. Z., Akgün G., Kayacan C., Öktem A. S., Kalbaran Ö., "Design and Optimization of Sinusoidal Formed Femur Prosthesis", 7. Internationally Participated National Biomechanics Congress, Isparta, October 16-18, (2014).

Oktem Ahmet Sinan, Adalı S, Kucuk I (2012). Buckling analysis of shear deformable polymer/clay nanocomposite laminates via a micromechanics approach. International Conference on Mechanics of Nano, Micro and Macro Composite Structures, Politecnico di Torino

Oktem Ahmet Sinan, Alankaya V, Soares CG (2011). Bending analysis of functionally graded plates using a higher order shear deformation theory. AIAC, 6th International Aerospace Conference,

Mantari JL, Oktem Ahmet Sinan, Soares CG (2011). A new trigonometric shear deformation theory for sandwich and composite laminated plates. MARTECH 2011-1st International Conference on MaritimeTechnology and Engineering

Mantari JL, Oktem Ahmet Sinan, Soares CG (2011). Layerwise finite element formulation for the analysis of laminates andsandwich panels. MARTECH 2011-1st International Conference on Maritime Technology and Engineering

Bagbanci H, Baykut N, Oktem Ahmet Sinan, Soares CG (2011). Fluid-Structure Interaction Problem of a Composite Motor Yacht. MARTECH 2011-1st International Conference on Maritime Technology and Engineering

Alves C, Oktem Mehmet Fatih, Oktem Ahmet Sinan, Furtado SC, , Ferro PMC, Reis L, Freitas M (2009). Manufacturing of Jute Fiber Composites Using RTM Process. 5th Ankara International Aerospace Conference, AIAC 2009

Öktem Ahmet Sinan, Chaudhuri Reaz A, Soares Carlos G (2009). A Higher Order Shear Deformation Theory Based Fourier Solution for Fully Clamped General Cross-Ply Plates. 15th International Conference on Composite Structures, ICCS 15

Alves C, Furtado S C, Oktem Ahmet Sinan, Fogal M L, Reis L, Silva A, Ferro P MC, Freitas M (2009). Investigating the Usage of Jute Fiber Composites as An Eco-material In Sustainable Mobility. 15thInternational Conference on Composite Structures, ICCS 15

Ata Ali, Öktem Ahmet Sinan, Durmusoglu Yalçın (2008). GÜNES ENERJILI ÇIFT ETKILI ABSORPSIYONLU (LiBr-H2O) SOGUTMA/ ISITMA SISTEMI. 10th International Combustion Symposium, SEPTEMBER 9-10 2008 SAKARYA/TURKIYE

Öktem Ahmet Sinan, Safa Aykut (2007). StaticAnalysis of Antisymmetric Angle-ply Composite Shells Using a Higher OrderTheory. ICCE-15 Composites/NANO Engineering Hainan-China

Oktem Ahmet Sinan, Chaudhuri RA (2007). The Effect of Boundary Conditions on the Response of Laminated Thick Composite Cross-Ply Shells. Proceedings of Sixth Int. Conference on Composite Science and Technology, ICCST/6

Sahin Bahri, Öktem Ahmet Sinan (1997). Performance Analysis of MHD Power Cycles and Obtaining Optimum Working Conditions. Fifth Combustion Symposium, Kirazlıyayla, Bursa/TURKEY

Diğer Yayınlar:

Ugur Kesgin, Nurten Vardar, Ahmet Sinan Oktem (2001). New Techniques in Internal Combustion Engine Developments. Yildiz Technical University Journal, Doi: doi: 10.2514/1.J052301

DOKTORA:

1- AHMET EMİN ŞENTÜRK:PREDICTING THE VARIOUS PHYSICAL
PROPERTIES OF CARBON-BASED STRUCTURES USING MOLECULAR SIMULATION METHODS-2018 (Eş Danışman)

YÜKSEK LİSANS:

1- FEHMİ GÜL: TÜLOMSAŞ TLM6V185 Model Ağır Dizel Motorunun MR Proses Yanma Mekanizması Kullanımı ve Turbo Şarj Kullanımı ile Termodinamik Hesaplarının Yapılması ve İncelenmesi- 03.07.2019

2-TANSEL AKSOY: DESIGN AND DEVELOPMENT OF MONO-BLOCK COMPOSITE STRUCTURE TO REDUCE WEIGHT OF THE CONVENTIONAL BUS BODY-2019

3-ONUR KAYA: BUCKLING OF ISOTROPIC AND COMPOSITE COLUMNS WITH UNCERTAIN MATERIAL PROPERTIES AND DIMENSIONS BY USING CONVEX MODELING-2019

4- RIZA MELİH KÖKSALLI: RF MEMS ANAHTARININ TASARIM VE YORULMA ANALİZİ-2020

  • Doktora: Eşdeğer Y.Doç.ve Doktora sonrası araştırmacı: Lizbon Teknik Üniversitesi

    Doktora: Utah Üniversitesi, Makina Müh. Bölümü
  • Yüksek lisans: Yıldız Teknik Üniversitesi
  • Lisans: Yıldız Teknik Üniversitesi
Nano Malzemeleri (Grafen ve Türevleri) üreten "Grafen Labaratuvarı"nda çalışmalarımızı sürdürüyor ve nano malzemeleri ağırlıklı olarak Moleküler Simülasyon programlarıyla simüle ediyoruz.