"Contact Problem Of A Functionally Graded Layer Under Gravity", Murat Yaylacı, Gökhan Adıyaman, Erdal Öner, Ahmet Birinci, (24.04.2018-27.04.2018), 3. International Conference on Civil And Environmental Engineering (ıcocee –2018), 2018

"Yarım Düzlem Üzerine Oturan Elastik Tabakanın Sürtünmesiz ve Ayrılmalı Temas Problemi", Gökhan Adıyaman, Erdal Öner, Ahmet Birinci, Pembe Merve Karabulut, (24.08.2015-28.08.2015), Xıx. Ulusal Mekanik Kongresi, 2015

"Continuous Contact Plane Problem between a Functionally Graded Layer and a Homogeneous Half plane", Erdal Öner, Gökhan Adıyaman, Ahmet Birinci, (19.10.2016-24.10.2016), 3rd İnternational Conference on Computational And Experimental Science And Engineering, 2016

"Solution of Discontinuous Contact Problem between a Functionally Graded Layer and Homogeneous Half-Plane according to the Theory of Elasticity", Erdal Öner, Gökhan Adıyaman, Ahmet Birinci, (21.09.2017-23.09.2017), International Conference on Advanced Engineering Technologies, 2017

"Analytical Solution and Finite Element Analysis for a Receding Contact Problem", Murat Yaylacı, Erdal Öner, Ahmet Birinci, (11.06.2013-13.06.2013), 4th International Conference on Mathematical And Computational Applications, 2013

"Continuous Contact Problem for Two Elastic Layers Loaded by means of a Rigid Circular Punch and Resting on Elastic Half Infinite Plane", Erdal Öner, Ahmet Birinci, (17.10.2012-19.10.2012), 10th International Congress on Advances in Civil Engineering, 2012

"Winkler Zemine Oturan Elastik İki Tabaka İçin Sürekli Temas Probleminin Sonlu Elemanlar Yöntemi Kullanılarak Çözümü", Murat Yaylacı, Ahmet Birinci, Erdal Öner, (24.08.2015-28.08.2015), Xıx. Ulusal Mekanik Kongresi, 2015

"A Finite Element Modelling for Interface Separation in Contact Problem of Functionally Graded Layer and Homogeneous Half Space", Murat Yaylacı, Erdal Öner, Gökhan Adıyaman, Ahmet Birinci, (19.09.2019-21.09.2019), 3rd International Conference on Advancedengineering Technologies(ıcadet 2019), 2019

"Plane Contact Problem on Indentation of a Circular Punch into a Functionally Graded Layer", Erdal Öner, Gökhan Adıyaman, Murat Yaylacı, Ahmet Birinci, (04.05.2018-05.05.2018), 3. International Congress on Engineering, Architecture And Design, 2018

"Stress Analysis in Contact Problem of a Functionally Graded Layer and Homogeneous Substrate", Erdal Öner, Ahmet Birinci, (19.09.2019-21.09.2019), 3rd International Conference on Advancedengineering Technologies(ıcadet 2019), 2019

"Frictionless Contact Problem for a Graded Layer-Half Plane Structure under a Rigid Punch", Erdal Öner, Gökhan Adıyaman, Ahmet Birinci, (10.05.2017-12.05.2017), International Conference on Advances And Innovations in Engineering (ıcaıe), 2017

"Discontinuous contact problem between a functionally graded layer and a homogeneous substrate", Erdal Öner, Gökhan Adıyaman, Ahmet Birinci, (08.05.2017-10.05.2017), International Conference on Civil And Environmental Engineering (ıcocee- Cappadocia), 2017

"Discontinuous Contact Problem of A Functionally Graded Layer Resting on A Half Plane", Gökhan Adıyaman, Erdal Öner, Murat Yaylacı, Ahmet Birinci, (17.04.2019-20.04.2019), International Civil Engineering And Architecture Conference 2019 (ıcearc’19), 2019

"Continuous Contact Problem between a Functionally Graded Layer and a Rigid Foundation Pressed by a Rigid Stamp", Erdal Öner, Gökhan Adıyaman, Murat Yaylacı, Ahmet Birinci, (27.06.2018-29.06.2018), 1st International Technology Sciences And Design Symposium (ıtesdes), 2018

"Continuous and Discontinuous Contact Problem of a Functionally Graded Layer Under Gravity", Gökhan Adıyaman, Erdal Öner, Ahmet Birinci, (10.05.2017-12.05.2017), International Conference on Advances And Innovations in Engineering (ıcaıe), 2017

"The Continuous Contact Problem Of A Functionally Graded LayerResting On A Half Plane", Gökhan Adıyaman, Erdal Öner, Murat Yaylacı, Ahmet Birinci, (24.04.2018-27.04.2018), 3. International Conference on Civil And Environmental Engineering (ıcocee), 2018

"Rijit Dikdörtgen Bir Blok Aracılığıyla Yüklenmiş ve Elastik Yarı Sonsuz Düzleme Oturan Elastik İki Tabakanın Sürekli Temas Problemi", Erdal Öner, Ahmet Birinci, (22.11.2012-24.11.2012), İnşaat Mühendisliğinde 100. Yıl Teknik Kongresi, 2012