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Introduction to Peridynamics problem model and POD algorithm for nonlocal diffusion model

作者:   时间:2022-09-22   点击数:

Lecturer:Nie Yufeng

Summary:

A brief introduction to Peridynamics model and a fast algorithm for the nonlocal unsteady problems is given in this talk. The POD algorithm can be employed in the numerical simulation of nonlocal diffusion and Peridynamic. The surrogate model constructed by the proper orthogonal decomposition (POD) speeds up the process of solving equations by reducing the order of linear equations. Then, the accuracy and efficiency of the proposed algorithm was verified by numerical experiments. The results showed that this approach ensures accuracy while reduces the computational burden of the nonlocal model.

About the lecturer:

Nie Yufeng, professor, doctoral supervisor and dean of the School of Mathematics and Statistics of Northwestern Polytechnical University, engages in the research of models, theories and methods of large-scale scientific computing, presiding over 7 national scientific research programs and publishing more than 200 papers; he won the New Century Talent Award of the Ministry of Education, obtaining the second prize of Shaanxi Science and Technology Award and Shaanxi Provincial Famous Teacher Award in 2016. He is currently a member of the University Mathematics Teaching Steering Committee of the Ministry of Education, the vice chairman of the Shaanxi Mathematical Society, the chairman of the University Mathematics Teaching Committee of the Shaanxi Mathematical Society, the director of the Xi'an Key Laboratory of Scientific Computing and Applied Statistics, the executive editor of Inter J Numer Anal Modeling, and a member of the Disciplinary (Major) Appraisal Group for Science and Technology in Shaanxi Province.

Invited by:

Rui Hongxing, a professor at the School of Mathematics

Time:

15:00 on September 29 (Thursday)

Venue:

Tencent Meeting

Contact: Song Junpeng, contact information: jpsong@sdu.edu.cn

Sponsored by: School of Mathematics, Shandong University

地址:中国山东省济南市山大南路27号   邮编:250100  

电话:0531-88364652  院长信箱:sxyuanzhang@sdu.edu.cn

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