Author, Institution: Ayyappa Atmakuri, Kaunas University of Technology
Science area, field of science: Technological Sciences, Mechanical Engineering, T009
Scientific Supervisor: Prof. Dr. Hab. Arvydas Palevičius (Kaunas University of Technology, Technological Sciences, Mechanical Engineering, T009)
Dissertation Defense Board of Mechanical Engineering Science Field:
Prof. Dr. Hab. Vytautas Ostaševičius (Kaunas University of Technology, Technological Sciences, Mechanical Engineering, T009) – chairperson
Prof. Dr. Regita Bendikienė (Kaunas University of Technology, Technological Sciences, Mechanical Engineering, T009)
Prof. Dr. Vytenis Jankauskas (Vytautas Magnus University, Technological Sciences, Mechanical Engineering, T009)
Prof. Dr. Vytautas Jūrėnas (Kaunas University of Technology, Technological Sciences, Mechanical Engineering, T009)
Prof. Dr. Sergei Kruchinin (National Academy of Sciences of Ukraine, Ukraine, Natural Sciences, Physics, N002)
Dissertation defense meeting will be at Rectorate Hall of Kaunas University of Technology (K. Donelaičio 73-402, Kaunas)
The doctoral dissertation is available at the library of Kaunas University of Technology (Gedimino 50, Kaunas) and on the internet: A. Atmakuri_ el. dissertation.pdf
Annotation: This comprehensive research endeavor has unveiled the remarkable potential of natural fiber hybrid composites as a sustainable substitute for artificial fiber composites across an array of applications. The meticulous preparation of reinforcement materials, including chemical and heat treatments, was pivotal in elevating the surface properties of natural fibers, effectively addressing challenges such as microcracks and kink bands. The exploration of hybridization techniques with diverse natural fibers and matrix materials provided valuable insights into their mechanical and surface properties. The comparison between epoxy and EcoPoxy matrix materials underscored the enduring appeal of epoxy-based matrices for their superior mechanical and surface properties. Furthermore, the incorporation of nano graphite filler materials presented a promising avenue for reducing porosity and enhancing the adhesion properties within composite materials. Also, the addition of nano graphite filler particles not only bolstered the mechanical properties of the hybrid composites but also contributed to reducing internal stress and improving the adhesion between reinforcement and matrix materials. Collectively, these findings position natural fiber hybrid composites as a sustainable and competitive alternative to artificial fiber composites in sustainable applications, promising not only enhanced mechanical performance but also a reduced environmental footprint.
October 12 d. 10:00
Rectorate Hall at Kaunas University of Technology (K. Donelaičio 73-402, Kaunas)
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