Method for calculating gaseous diffusion and oxidation evolution of ceramic matrix composite (CMC) structure
US12060300B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2022 |
| Grant date | Aug 13, 2024 |
| Priority date | — |
| Expiry date | Nov 7, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2223/615
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method is provided for calculating gaseous diffusion and oxidation evolution of a ceramic matrix composite (CMC) structure, which includes determining temperature and load distribution in a structural member; determining matrix crack distribution in the structure; establishing an equivalent diffusion coefficient model of a fiber bundle scale to predict a gas flow channel in a fiber bundle: averaging a total amount of gaseous diffusion in the channel to establish the equivalent diffusion coefficient model of the fiber bundle composite scale related to the matrix crack distribution; establishing a representative volume element (RVE) model; establishing an equivalent diffusion coefficient model of a RVE scale; calculating the distribution of the gas concentration and oxidation products in the structure; calculating a growth thickness of an oxide at cracks and pores in each element; and updating sealing conditions of the gas channel, and calculating a new equivalent diffusion coefficient field and the distribution of the oxidation products again.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.