Unit:
Department of Aerospace Science
and TechnologyLibrary of the School of Agricultural Development, Nutrition and Sustainability
Supervisors info:
Στυλιανός Μαρκολέφας, Επίκουρος Καθηγητής, Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών, Τμήμα Αεροδιαστημικής Επιστήμης και Τεχνολογίας
Στυλιανός Γεωργαντζίνος, Αναπληρωτής Καθηγητής, Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών, Τμήμα Αεροδιαστημικής Επιστήμης και Τεχνολογίας
Original Title:
The Influence of Space Conditions on the Properties of Existing Materials and the Contribution of Microgravity to the Development of Innovative Materials
Translated title:
The Influence of Space Conditions on the Properties of Existing Materials and the Contribution of Microgravity to the Development of Innovative Materials
Summary:
This thesis presents a comprehensive study on the behavior of materials under exposure to space environment conditions and highlights the importance of in-space manufacturing. Initially, an overview of the space environment is given assessing all sources of concern spacecraft designers face regarding material selection. Furthermore, an in-depth literature review is provided analysing the various phenomena observed regarding the impact of the various space environment conditions both independently and synergistically. Thence, the effects of reduced gravity conditions on the development of materials are discussed, as well as the contribution of these conditions to the development of innovative materials with superior properties, than the current state-of the-art. A computational analysis, using Classical Lamination Theory and data from previous research, was conducted to assess the effects of the space environment on the equivalent properties of the composite materials and to evaluate the response of various failure criteria. The results showed a similar trend between all criteria and at elevated temperatures, irradiated materials exhibited 18% lower equivalent strength than non-irradiated ones. Among the failure criteria, the Tsai-Hill Criterion proved the most conservative, while the Puck Criterion was the least conservative. These findings underscore the complex interplay between radiation and temperature in space environments and their impact on material properties.
Main subject category:
Science
Keywords:
Space Environment, Radiation, Atomic Oxygen, Space Meteoroids and Debris, Effects, Microgravity, In-Space Manufacturing
File:
File access is restricted until 2025-03-13.
Barkas, The Influence of Space Conditions on the Properties of Existing Materials and the Contribution of Microgravity to the Development of Innovative Materials, 2024.pdf
5 MB
File access is restricted until 2025-03-13.
