Spallation on Carbon Ablators
Article
Article Title | Spallation on Carbon Ablators |
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ERA Journal ID | 3575 |
Article Category | Article |
Authors | Grigat, Felix (Author), Loehle, Stefan (Author), Zander, Fabian (Author) and Fasoulas, Stefanos (Author) |
Journal Title | AIAA Journal: devoted to aerospace research and development |
Journal Citation | 60 (7), pp. 3936- 3949 |
Number of Pages | 14 |
Year | 2022 |
Publisher | American Institute of Aeronautics and Astronautics |
Place of Publication | United States |
ISSN | 0001-1452 |
1533-385X | |
Digital Object Identifier (DOI) | https://doi.org/10.2514/1.J061276 |
Web Address (URL) | https://arc.aiaa.org/doi/abs/10.2514/1.J061276 |
Abstract | A comprehensive analysis of publicly available research statements on spallation processes of ablative heat shield materials is presented. Based on the published data and numerical simulations thereof, a definition of spallation with respect to its fundamental parameters is given. Results from ablation and spallation experiments as well as analytical and numerical models are compared and discussed with respect to the conditions and mechanisms that lead to spallation. The driving mechanisms are oxidation, pyrolysis gas outflow, shear forces, and thermal stress. Based on the summary of the current state-of-knowledge of spallation, propositions are made for future experimental and numerical investigations. |
Keywords | Stagnation-point ablation; Heating environment; Mechanical erosion; Charring ablation; Spalled particles; Flat disks; Protection; Pyrolysis; Oxidation; Permeability |
ANZSRC Field of Research 2020 | 400199. Aerospace engineering not elsewhere classified |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Stuttgart, Germany |
University of Southern Queensland | |
German Aerospace Centre, Germany | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q72x0/spallation-on-carbon-ablators
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