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International projects source: SICRIS

Predicting residual service life of sandwich composites for reusable space vehicles

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Researchers (2)
no. Code Name and surname Research area Role Period No. of publications
1.  16334  PhD Jernej Klemenc  Mechanical design  Head  2024  817 
2.  13469  PhD Marko Nagode  Mechanical design  Former/secondary head  2024  839 
Organisations (1)
no. Code Research organisation City Registration number No. of publications
1.  0782  University of Ljubljana, Faculty of Mechanical Engineering  Ljubljana  1627031  30,047 
Abstract
In this project a service life of a potentially reusable components of space vehicles made of sandwich structures (carbon-fibre reinforced plastics in combination of aluminium honeycomb) will be addressed. This lightweight material combination is selected for the project, because it was much less studied in the past when compared to the space-approved metallic alloys. Besides, it is the basic material choice for the space vehicle’s fairings as well as rocket fins that are crucial for guiding the space vehicles. The main idea of this project is to develop a coupled numerical experimental methodology for predicting the maiden and residual service life of sandwich composites when exposed to regular launch cycle(s) and exceptional events during the mission (e.g. particle impact). To do that the following challenges need to be solved: – Determination of a representative thermo-mechanical loading spectrum for a space mission; – Designing of an accelerated fatigue testing procedure as this is one of the main drivers affecting the service life of the structure; – Validating the experimental and numerical procedures that are used for estimating the service life of space vehicles and supplementing them for the purpose of estimating the service life of reusable space vehicles with/without damaged components.
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