Rupture Limit Equation for Shielded COPVs
How well a spacecraft component resists the damage that might occur following a high-speed impact by a meteoroid or piece of orbital debris is one of the main design considerations for earth orbiting spacecraft. Most spacecraft have at least one pressurized tank on board, such as a liquid propellant tank. In addition to a hole, it is possible that, for certain tank designs, construction materials, operating conditions, and impact parameters, a pressurized vessel may experience catastrophic failure (i.e. rupture) as the result of such a high-speed impact. Risk assessments performed during the design phase of a spacecraft typically consider and weigh the likelihoods and consequences of various failures that might occur following a MOD particle impact, including whether or not such a tank rupture might occur. In this paper, the datasets from several test programs involving shielded and unshielded composite overwrapped pressure vessels (COPVs) are combined to yield a single, new equation that can be used for this purpose. Comparison with test data shows that this new equation is able to correctly discriminate between the COPV rupture and non-rupture data points for the full high-speed impact test database considered herein.
W. P. Schonberg, "Rupture Limit Equation for Shielded COPVs," International Journal of Pressure Vessels and Piping, vol. 190, Elsevier, Apr 2021.
The definitive version is available at https://doi.org/10.1016/j.ijpvp.2021.104319
Civil, Architectural and Environmental Engineering
International Standard Serial Number (ISSN)
Article - Journal
© 2021 Elsevier, All rights reserved.
01 Apr 2021