Simulation of microstructure evolution of material as solved based on exponential time-difference format
US12056424B2 · kind B2 · utility
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Key dates
| Filing date | Oct 9, 2020 |
| Grant date | Aug 6, 2024 |
| Priority date | — |
| Expiry date | Oct 6, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2113/26
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and device for simulating microstructure evolution of a material based on solution in an exponential time-difference format. The method includes: establishing a reaction rate theory model for substance defects, wherein the model is expressed with equations that comprise linear terms having coefficients characterized with matrixes; and iteratively solving the equations by using an exponential time-difference format, wherein during the iterative solving, the linear terms with exponential powers of the matrixes as the coefficients are integrated. Since a rate theory is not limited by spatial-temporal scales, the advantages of the rate theory can be significantly reflected when the microstructure evolution is simulated under a high damage dose condition; and then, the equations are solved by using the exponential time-difference format, with a solved result better in accuracy and higher in precision.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.