Dynamic Pulse Buckling of Composite Stanchions in the Sub-Cargo Floor Area of a Civil Regional Aircraft
1
Department of Engineering, University of Campania Luigi Vanvitelli, via Roma 29, 81031 Aversa, Italy
2
CIRA—Italian Aerospace Research Centre, via Maiorise snc, 81043 Capua, Italy
3
Department of Industrial Engineering, University of Naples Federico II, p.le Tecchio 80, 80125 Naples, Italy
*
Author to whom correspondence should be addressed.
Materials 2020, 13(16), 3594; https://doi.org/10.3390/ma13163594
Received: 15 July 2020
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Revised: 10 August 2020
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Accepted: 11 August 2020
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Published: 14 August 2020
(This article belongs to the Special Issue Behavior of Metallic and Composite Structures (Second Volume))
This work is focused on the investigation of the structural behavior of a composite floor beam, located in the cargo zone of a civil aircraft, subjected to cyclical low-frequency compressive loads with different amplitudes. In the first stage, the numerical models able to correctly simulate the investigated phenomenon have been defined. Different analyses have been performed, aimed to an exhaustive evaluation of the structural behavior of the test article. In particular, implicit and explicit analyses have been considered to preliminary assess the capabilities of the numerical model. Then, explicit non-linear analyses under time-dependent loads have been considered, to predict the behavior of the composite structure under cyclic loading conditions. According to the present investigation, low-frequency cyclic loads with peak values lower than the static buckling load value are not capable of triggering significant instability.
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Keywords:
dynamic pulse buckling; composite stanchion; FE analysis; nonlinear analysis; crashworthiness
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MDPI and ACS Style
Sellitto, A.; Di Caprio, F.; Guida, M.; Saputo, S.; Riccio, A. Dynamic Pulse Buckling of Composite Stanchions in the Sub-Cargo Floor Area of a Civil Regional Aircraft. Materials 2020, 13, 3594. https://doi.org/10.3390/ma13163594
AMA Style
Sellitto A, Di Caprio F, Guida M, Saputo S, Riccio A. Dynamic Pulse Buckling of Composite Stanchions in the Sub-Cargo Floor Area of a Civil Regional Aircraft. Materials. 2020; 13(16):3594. https://doi.org/10.3390/ma13163594
Chicago/Turabian StyleSellitto, Andrea, Francesco Di Caprio, Michele Guida, Salvatore Saputo, and Aniello Riccio. 2020. "Dynamic Pulse Buckling of Composite Stanchions in the Sub-Cargo Floor Area of a Civil Regional Aircraft" Materials 13, no. 16: 3594. https://doi.org/10.3390/ma13163594
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