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Nonlinear Dynamic Analyses of STS-1 Forward RCS Oxidizer Tank Structural FailureAt liftoff of the first Space Shuttle mission, a strong ignition overpressure pulse excited the stack. The frequency of the experienced pressure wave exceeded pre-launch predictions, and resulted in high, alternating normal accelerations along the length of the vehicle. As result of this unexpected loading, an oxidizer tank support strut in the orbiter’s forward reaction control system module failed in buckling under axial compression, which could have led to loss of the mission, crew, and vehicle. This incident is investigated in more detail using linear and nonlinear finite element analyses, complementing previous analyses with classical structural mechanics. The results of these analyses are examined to provide additional insight into the accident and to better inform future design decisions for modern space vehicle systems and structures.
Document ID
20230017837
Acquisition Source
Langley Research Center
Document Type
Presentation
Authors
V Oliveri
(University of Limerick Limerick, Ireland)
K Chauncey Wu
(Langley Research Center Hampton, Virginia, United States)
Date Acquired
December 6, 2023
Publication Date
January 8, 2024
Publication Information
Subject Category
Structural Mechanics
Meeting Information
Meeting: AIAA SciTech Forum and Exposition
Location: Orlando, FL
Country: US
Start Date: January 8, 2024
End Date: January 12, 2024
Sponsors: American Institute of Aeronautics and Astronautics
Funding Number(s)
WBS: 062285.01.02.07
Distribution Limits
Public
Copyright
Portions of document may include copyright protected material.
Technical Review
Single Expert
Keywords
Space Shuttle
Buckling
Failure analysis
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