Fluid Structure Interaction of Fuel Tanks and Airframe Structures During a Crash Event

Akif Bolukbasi; Richard Weisenburger

doi:10.4050/F-0080-2024-1173

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Fluid Structure Interaction of Fuel Tanks and Airframe Structures During a Crash Event

Akif Bolukbasi, Richard Weisenburger, The Boeing Company

May 7, 2024

https://doi.org/10.4050/F-0080-2024-1173

Abstract:
This paper presents the results of a research and development (R&D) effort focused on fluid structure interactions between airframe structures and bladder type fuel tanks during a crash environment. During this R&D effort, fuel tank and surrounding structure crash impact tests were conducted using an innovative test configuration that allowed low-cost fabrication of test articles which represented several different design architectures. LS-DYNA models of the crash test article configurations were also developed and correlated with the tests data. Good correlation between the test data and LS-DYNA analysis results was achieved. The paper also includes recommendations for design of the airframe structures around the fuel tanks based on the fluid structure interaction insights gained from the crash tests and analyses.