Current MSc and PhD Positions in Advanced Composites and Polymer Processing Laboratory (AC2PL);
Monitoring Fatigue Behavior and Life of Fiber Reinforced Polymeric Composite Materials by Fiber Bragg Grating Sensors.
This research focuses on monitoring the structural health of fiber reinforced polymeric composites under fatigue loading in situ by means of Fiber Bragg Grating Sensors embedded into composite structures. The immediate objective of the research is to develop a fatigue prediction model that uses strain as input data for calculating the remaining useful life and fatigue behavior of composites, and associated compact and on-board installable optic interrogation and signal and data processing systems. Within the scope of this project, a PhD and an MSc positions are immediately available. The PhD candidates are expected to have a background or interest in instrumentations, design, and optic sensors. The suitable candidates should have previous degrees in Electronics Engineering, or Physics and are to be responsible for further developing our in-house optical interrogation system.
MSc candidates should have a background or interest in composite materials, and instrumentations, design, and optic sensors. The suitable candidates should have previous degrees in Materials Science and Engineering, Mechanical/Mechatronics Engineering. The MSc candidates will be in charge of conducting fatigue experiments on composite coupons with embedded FBG sensors.
The Theoretical, Numerical and Experimental Investigation of the Mechanical Behavior of Multi-axial Laminated Composite Materials.
In this project, we aim to develop a new multiaxial laminated composite through conducting combined numerical and experimental investigations on the mechanical behaviors of composite. In high-tech engineering structures (i.e. airliner, jetfighter, helicopter, high speed patrol boat, wind turbine blades), the most important parameter taken into consideration in design is to meet the strength, rigidity and stability requirements for structure in lowest possible construction weight. These requirements are best fulfilled by multi-layered structural elements such as composite materials. Developing new multilayered material configurations using conventional fibers (Glass, Organic, Carbon) in different woven fabric styles or multiaxial stackings yields very different mechanical characteristics and it is vital for a structural design engineer to understand the behavior of such hybrid laminates under statical and dynamical loading conditions. Developing such materials requires a multidisciplinary study including theoretical, numerical and experimental researches. The project aims to answer these needs. Experiences gained and results of this project will be used for developing new types of fabrics and laminate configurations having superior material properties and providing ultimate strength, rigidity and stability in construction elements. In the development of hybrid composite laminates, it is particularly important to investigate stress and strain fields at the interface of each lamina. To do so, the project will include the integration of Fiber Bragg Grating (FBG) optic sensors into the manufactured composites test samples. The candidates are expected to have a background or interest in composite materials, and instrumentations, design, and optic sensors. The suitable candidates should have previous degrees in Materials Science and Engineering, Mechanical/Mechatronics Engineering.
Corresponding Contact Person:
Dr. Mehmet Yıldiz
meyildiz@sabanciuniv.edu
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