Crashworthiness Study of Composite Fuselage Section 机翻标题: 暂无翻译,请尝试点击翻译按钮。

2017-10-30

Crashworthiness is one of the requirements for design of aircraft to ensure the safety of passengers on aircraft. With increasing applications of advanced composite in aircraft structures, study on the crashworthiness of composite fuselage is desirable and important. For this purpose, this paper investigates the influence of composites on crashworthiness of fuselage section. Firstly, model of fuselage section of aircraft is established. Skin, frame, stringer and stiffener are made of the composite T800/QY8911 or GLARE. Then, the crash responses subjected to vertical impact velocity of 9.14m/s are analyzed. The acceleration history is recorded for assessment of the crashworthiness. In addition, the deformation process and failure mode of composite fuselage section are analyzed. Results indicate that the frame made of brittle composite may fracture in the crash process, which leads to serious damage to the fuselage. While the frame with good toughness can maintain the integrity of fuselage, thereby protecting passengers. [1] M. Lützenburger, M. Lützenburger, KRASH related research projects at DLR, International Krash Users’ Seminar, 2009. 0037-1920 [2] E. Dlrbeauftragter, Simulation of the A320 Section Drop Test Using the Hybrid Code KRASH (EG-IMT 2002: INT J CRASHWORTHINES, Subtask 3.1), (1995). [3] Y. Ren, J. Xiang, A comparative study of the crashworthiness of civil aircraft with different strut configurations, INT J CRASHWORTHINES, 15 (2010) 321-330.10.1080/13588260903343823 [4] P. Xue, L. Wang, C. Qiao, Crashworthiness Study on Fuselage Section and Struts under Cabin Floor, Int J Prot Struct, 2 (2011) 515-525. 2041-419610.1260/2041-4196.2.4.515 [5] M. Kharazi, H.R. Ovesy, M. Asghari Mooneghi, Buckling analysis of delaminated composite plates using a novel layerwise theory, THIN WALL STRUCT, 74 (2014) 246-254.10.1016/j.tws.2013.08.008 [6] J.E. Terry, Design and test of an improved crashworthiness small composite airframe, SAE Technical Paper, 2000. [7] R. Foye, C. Swindlehurst, W. Hodges, A crashworthiness test for composite fuselage structure, Fibrous Composites in Structural Design, Springer, 1980, pp. 241-257.10.1007/978-1-4684-1033-4_14

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