School of Mechanical, Materials and Mechatronic Engineering
SEMINAR Effects of carbon nanotubes on the mechanical and electrical behaviour of fibre reinforced materials PRESENTER Ali Faraj Hammadi WHERE BLD8.114 DATE Friday 25th of September 2015 TIME 12.30 -13.30
ABSTRACT This research proposal is aims to investigate the effect of carbon nanotubes (CNT's) as filler for carbon fibre/epoxy composite reinforced by CNTs systems prepared by Vacuum Assisted Resin Infusion Moulding (VARIM). Firstly, a new polymer processed system was built and first samples were already prepared. The effect of the filler amount (between 0 and 1 wt%) present in the epoxy matrix, on the quasi-static mechanical, thermal and electrical properties will be systematically addressed. Fatigue life cycle will be assessed by half-cycle experiments under dynamical load and the results will be analysed theoretically in order to predict the nanocomposites performance. In addition, Fibre Bragg grating (FBG) sensors and electric resistance are two different non-destructive methods which will be used to assess and monitor damage formation and evolution in nanocomposite material during the test time. Another point of study will be the effect of the number of bi-oriented carbon mat layers and orientation of the fibres in the mats on the mechanical and electrical performance of the materials, as well as mechanical fatigue.
Finally, the piezoresistive properties of the prepared materials will be evaluated under tensile and bending modes and the gauge factor and sensibility of the materials will be systematically characterized to explore this material as not only due to its mechanical properties but also due to its electrical performance as strain piezoresistive sensors.
ABOUT THE SPEAKER Ali Faraj Hammadi is a first year PhD student at the School of Mechanical, Materials and Mechatronics Engineering, University of Wollongong under the supervision of Dr. Yue Zhao and Dr. Vitor Sencadas Gomes da Silva Sencadashttps://ris.uow.edu.au/ris_public/WebObjects/RISPublic.woa/wa/Staff/selectPerson?id=120379&group=3944. Currently, Ali am studying Fatigue life of Composite Materials parts at elevated Temperature.