An Insight on the Crashworthiness Behavior of a Full-Scale Composite Fuselage Section at Different Impact Angles

Aerospace

Salvatore Saputo¹  Angela Russo¹  Aniello Riccio¹  Andrea Sellitto¹  Luigi Di Palma²  Francesco Di Caprio² 

[1] Department of Engineering, University of Campania “Luigi Vanvitelli”, via Roma 29, 81031 Aversa CE, Italy;Italian Aerospace Research Centre (CIRA), via Maiorise snc, 81043 Capua CE, Italy;

关键词: crashworthiness;    finite element analysis (FEA);    composites;    progressive failure analysis (PFA);   

DOI  :  10.3390/aerospace6060072

来源: DOAJ

【 摘 要 】

In the present paper, advanced numerical methodologies have been adopted to investigate the influence of impact angle on the crashworthiness behavior of a composite fuselage section. The analyzed fuselage section, made of unidirectional fiber-reinforced material, woven fabric material, and aluminum material, is representative of a regional aircraft fuselage. Two different angles of impact with rigid ground have been investigated and reported: Perpendicularly to the ground and with a pitch angle of 3 degrees with respect to the ground. The adopted numerical models have been preliminarily validated with experimental data from a drop test on a full-scale fuselage section, in terms of deformations and failure location and progression. The correlation between the numerical model and the experimental test has enabled evaluation of the effect of the impact angle on the deformation and damage in the sub-cargo floor area.

【 授权许可】

Unknown