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Predictive analysis of stitched aerospace structures for advanced aircraft

Part of: 31st Congress of The International Council of the Aeronautical Sciences (ICAS)

Published online by Cambridge University Press:  18 November 2019

B. Horton ,
Y. Song ,
D. Jegley ,
F. Collier  and
J. Bayandor
B. Horton
Affiliation:
CRashworthiness for Aerospace Structures and Hybrids (CRASH) Lab, Department of Mechanical and Aerospace Engineering, University at Buffalo - The State University of New York, Buffalo, NYUSA
Y. Song
Affiliation:
CRashworthiness for Aerospace Structures and Hybrids (CRASH) Lab, Department of Mechanical and Aerospace Engineering, University at Buffalo - The State University of New York, Buffalo, NYUSA
D. Jegley
Affiliation:
Structural Mechanics and Concepts Branch, NASA Langley Research Center, Hampton, VAUSA
F. Collier
Affiliation:
Environmentally Responsible Aviation Project of the Aeronautics Research Mission Directorate, NASA Langley Research Center, Hampton, VAUSA
J. Bayandor*
Affiliation:
CRashworthiness for Aerospace Structures and Hybrids (CRASH) Lab, Department of Mechanical and Aerospace Engineering, University at Buffalo - The State University of New York, Buffalo, NYUSA
*
[email protected]
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Abstract

In recent years, the aviation industry has taken a leading role in the integration of composite structures to develop lighter and more fuel efficient aircraft. Among the leading concepts to achieve this goal is the Pultruded Rod Stitched Efficient Unitized Structure (PRSEUS) concept. The focus of most PRSEUS studies has been on developing an hybrid wing body structure, with only a few discussing the application of PRSEUS to a tube-wing fuselage structure. Additionally, the majority of investigations for PRSEUS have focused on experimental validation of anticipated benefits rather than developing a methodology to capture the behavior of stitched structure analytically. This paper presents an overview of a numerical methodology capable of accurately describing PRSEUS’ construction and how it may be implemented in a barrel fuselage platform resorting to high-fidelity mesoscale modeling techniques. The methodology benefits from fresh user defined strategies developed in a commercially available finite element analysis environment. It further proposes a new approach for improving the ability to predict deformation in stitched composites, allowing for a better understanding of the intricate behavior and subtleties of stitched aerospace structures.

Keywords

Stitched compositeMesoscale modelingHybrid wing body
Type
Research Article
Information
The Aeronautical Journal , Volume 124 , Issue 1271 , January 2020 , pp. 44 - 54
Copyright
© Royal Aeronautical Society 2019 

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Footnotes

A version of this paper was presented at the 31st ICAS Congress of the International Council of the Aeronautical Sciences in Belo Horizonte, Brazil in September 2018.

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