Recently, working as a Supplier Quality Engineer at OYAK RENAULT Automobile Factory
Education:
M.S.: Middle East Technical University, Metallurgical and Materials Engineering (2016)
B.S.: Yıldız Technical University, Metallurgical and Materials Engineering (2013)
Research Interests:
- Solid Mechanics and Metal Forming (Lightweight Alloys)
- Texture and Microstructure
- Digital Image Correlation Technique
Thesis Research/Title: Large Strain Deformation Analysis at Microstructural Scale by Digital Image Correlation
Thesis / Research Information: Small-scale and multi-axial testing of sheet metals, particularly of lightweight alloys and advanced steels are becoming important as these materials exhibit forming behavior sensitive to their unique microstructural features and strain paths. As an alternative to large-scale standard tests, in this study we introduce a novel biaxial tensile test apparatus utilizing miniature cruciform samples. The compact and portable apparatus includes a custom-built optical microscope and high-resolution digital imaging and correlation equipment for in-plane and in-situ strain measurements at the microstructure scale. The small strain and premature fracture problems common to the cruciform tests are solved by optimizing the sample design and by meticulously controlling the manufacturing steps and surface finish. Strain analyses reveal a key mechanism responsible for large strains and fracture at the center. This mechanism suppresses the local neck formation and allows uniform deformation under equibiaxial conditions until fracture. When normalized with the strain hardening exponent of the sample material (Al 6061-T6), the effective strain value before fracture, surpass the reported values for similar materials tested by cruciform and standard methods.
