Title :
Simulation Analysis of Hydrodynamic Ram Phenomenon in Composite Fuel Tank to Fragment Impact
Author :
Liang, Chen ; Bifeng, Song ; Yang, Pei
Author_Institution :
Sch. of Aeronaut., Northwestern Polytech. Univ., Xi´´an, China
Abstract :
Hydrodynamic ram (HRAM) caused by fragments impacting and penetrating through fuel tanks has great effect on aircraft survivability. In the present paper, in order to evaluate the damage characteristics of a composite fuel tank facing fragments impacting, the finite-element code PAM-Crash has been employed to simulate an HRAM event. Using Smoothing Particle Hydrodynamics (SPH) method, the fluid-Cstructure interaction between walls and fuel has been solved. Basing on comparative analyses on damage degree of different position, high risk region has been confirmed. Through comparing with aluminum tank, the characteristics of damage and failure of the composite tank are analyzed. Emulation results show that the approach of SPH is capable of analyzing the HRAM. Comparing with metal tank, composite tank is easier to occur overall damage on many walls, but it has clear direction and can be forecasted, and easy to table improving proposals.
Keywords :
composite materials; condition monitoring; failure analysis; finite element analysis; fuel storage; hydrodynamics; impact (mechanical); tanks (containers); PAM crash; SPH method; aircraft survivability; composite fuel tank; damage characteristics evaluation; failure characteristics; finite element code; fluid-structure interaction; fragment impact; hydrodynamic ram phenomenon; smoothing particle hydrodynamics method; Aircraft; Fuel storage; Fuels; Hydrodynamics; Metals; Random access memory; Skin; Composite Material; Fuel Tank; Hydrodynamic Ram; Simulation Analysis; Smoothed Particle Hydrodynamics; Survivability;
Conference_Titel :
Measuring Technology and Mechatronics Automation (ICMTMA), 2011 Third International Conference on
Conference_Location :
Shangshai
Print_ISBN :
978-1-4244-9010-3
DOI :
10.1109/ICMTMA.2011.631
