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Investigation of sandwich shells modelling in order to simulate with robustness the mechanical behaviour of the launchers upper part structures
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Lightweight Structures.
2017 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

This paper presents the development of a finite-element model used to study the separation of a launcher payload fairing. This work has been carried out at the French National Space Agency (CNES). In order to capture the complex behaviour of sandwich structures used on the fairing, different methods are implemented to improve the robustness of the model and validate it. A special focus has been put on different shell theories available in the literature to understand the formulation behind shell finite elements. Several of them, available in the commercial solver Abaqus, have been tested to characterize their range of validity. The refinement suggestions drawn from this work have been implemented in the model and evaluated via a comparative study. No experimental data being available, a thorough process of verification and validation have been used in order to improve the confidence in the numerical results obtained.

Place, publisher, year, edition, pages
2017. , p. 13
Series
TRITA-AVE, ISSN 1651-7660 ; 2017:53
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-223319OAI: oai:DiVA.org:kth-223319DiVA, id: diva2:1183299
External cooperation
CNES
Examiners
Available from: 2018-02-16 Created: 2018-02-16 Last updated: 2018-02-16Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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  • de-DE
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  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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