Ms Miray Yasar
Postgraduate Researcher

Miray Yasar is a PhD researcher in I-Form, based in UCD and working in the area of Process-Structure-Property Development and Optimization. She obtained her master’s degree in Chemical Engineering from Middle East Technical University, Turkey in 2014. She focused on performance of modified thermoplastic poly(ether)ester elastomers in multilayer composites in her masters research. During her studies, she worked in the National Nanotechnology and Research Centre, Turkey for 8 months as a the engineer responsible for characterisation of samples. Subsequently, she worked in Roketsan Inc., Turkey as a senior manufacturing and process engineer in the composite manufacturing department for more than 6 years. She has experience on various polymer-matrix composite manufacturing methods and the surface treatment of metal parts in terms of their process design, optimization and improvement. In I-Form, her main research interests are in the area of polymer additive manufacturing process development and optimization.

Research Interests (Lay Summary)

Miray started her PhD with I-Form in 2020 and she is working on process development and optimization of digital light processing (DLP) additive manufacturing (AM). Additive manufacturing has gained importance as a research area due to the possibility of producing complex geometries in their final shape with adjustable physical, chemical and mechanical properties. Her main research interests are process-structure-property relationships. These include process development and optimization of process parameters, materials and topology properties, mechanical and chemical characterisation, nano-modification and damage-fracture behaviour of 3D printed parts produced by the DLP AM method.

 

Technical Summary

Digital Light Processing is a type of polymer additive manufacturing technique which uses polymeric photocurable resin to produce 3D parts. The principle of DLP is that the ultraviolet light (UV) is projected through a transparent window in order to cure polymer resin layer by layer. DLP projects the UV light once per one layer. Therefore, producing the parts by using DLP is rapid due to the short scanning time.

The main purpose of this research project is to focus on DLP AM techniques by adjusting printer settings,  optimising process parameters, enhancing post-processing conditions, material physical tailoring and functionalisation using nano-additives, and characterising of the 3D printed polymer. The aim is to investigate the relationship between process-structure and property of the nano-modified 3D printed parts in terms of their thermo-mechanical, fracture, topography and fatigue properties as well as residual stresses.

DLP includes a digital projection display device with a digital micromirror. Digital micromirror device adjustment is critical  to increase adhesion between layers. Thus, internal optics of the digital micro mirror device will be examined in order to increase process capability.

Process simulation, numerical optimisation of process and material parameters and topology optimisation by using advanced evolution algorithms are the other focus areas of this research.

Expertise

Additive Manufacturing (3D Printing), Materials Processing, Composite Materials, Materials Structure-Property Analysis, Materials Characterisation, Process Optimisation, Vat Photopolymerisation