The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 06, 2024
Filed:
Oct. 09, 2020
China Institute of Atomic Energy, Beijing, CN;
Computer Network Information Center, Chinese Academy of Sciences, Beijing, CN;
Yangang Wang, Beijing, CN;
Xinfu He, Beijing, CN;
Jian Zhang, Beijing, CN;
Zhikuang Xin, Beijing, CN;
Yankun Dou, Beijing, CN;
Ningming Nie, Beijing, CN;
Lixia Jia, Beijing, CN;
Jue Wang, Beijing, CN;
Wen Yang, Beijing, CN;
CHINA INSTITUTE OF ATOMIC ENERGY, Beijing, CN;
COMPUTER NETWORK INFORMATION CENTER, CHINESE ACADEMY OF SCIENCES, Beijing, CN;
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.