6月18日毛少林博士学术报告

发布时间:2013-06-17

题  目：Numerical Modeling of Material Large Deformation and Plastic Flow Problems

报告人：Shaolin Mao, Ph.D., Assistant Professor

(Department of Mechanical Engineering, The University of Texas at El Paso)

时 间： 6月18日（周二）  下午4：00-5：00

地 点：数学楼210室

Abstract:

In the talk we address multi-phase, multi-material numerical methods with applications to energy storage (e.g., metallic hydride), energetic materials (polymer), glass transition and granular flow. Understanding the nature of the collective dynamics and the associated rheology remains a challenge. We first introduce innovative particle-in-cell method (PIC) methods, and then discuss material point method (MPM), a powerful method to handle large deformation problems including multi-materials, moving interfaces and boundaries. An extension of the MPM is to couple with molecular dynamics (MD) method for bridging microscopic motion of particles and the macroscopic material behavior study. The MPM avoids explicit discretization of convection terms in momentum equations and there are no mesh distortion and tangling problems that have plagued in most Lagrangian methods. We will report some progress of our work in this area including the MPM combined with adaptive mesh refinement (AMR) technique to investigate fluid-structure interaction (FSI) aero-elastic problems. Heterogeneous computing architecture and application to multi-scale dense particulate systems (e.g., granular flow, amorphous solid) will also be covered.

报告人简介：

Education

Ø  Ph.D. (12/2004) major in Department of Mechanical Engineering with minor in Applied Mathematics, Florida State University, Tallahassee, FL 32301 (Supervisor: Prof. C.A. Luongo and Prof. D.A. Koprvia)

Ø  M.S. Program (05/2003), Department of Mathematics, Florida State University, Tallahassee, FL 32301

Ø  Ph.D. Candidate (09/1999-08/2000), Scientific Computation and Computer Application Department, Zhong-Shan University, Guangzhou, P.R. China (Supervisor: Prof. Li Yuesheng)

Ø  M.S.M.E. (07/1992) in Department of Engineering Mechanics, Tsinghua University, Beijing 10084, P.R. China

Ø  B.Sc. (07/1989) in Department of Aerospace Engineering, National University of Defense Technology, Changsha, P.R. China

Appointments

Ø  Department of Mechanical Engineering, The University of Texas at El Paso, TX 79968

Assistant Professor, 2012-present

Ø  Theoretical Division, Los Alamos National Laboratory (LANL), Los Alamos, NM 87545

Research Scientist, 2010-2012

Ø  Large Power Systems Division (LPSD), Caterpillar Inc. Peoria, IL 61552

Senior Research Engineer, 2008-2009

Ø  National Institute for Global Environmental Change and Tulane University, LA 70118

Research Fellow, 2005-2008

Ø  Florida State University and National High Magnetic Field Laboratory (NHMFL), FL 32310

Research Assistant, 2000-2004

Ø  Materials Testing Department, Joint Venture of Mitsubishi Heavy Industries Ltd., PR China

Senior Engineer and Group Leader/manager, 1992-1999

Research Interests

Ø  Multi-phase multi-material computational algorithm including particle methods: material point method (MPM), discrete element method (DEM), and molecular dynamics (MD). Specifically, scale-bridging theory and methodology studies

Ø  Complex flow problems modeling using large-eddy simulation (LES) and direct numerical simulation (DNS), current topics involve in turbulence-interface interaction in cryogenic fluid dynamics and environmental fluid mechanics

Ø  Dynamic meshing, arbitrary Lagrangian-Eulerian (ALE) applied to large deformation, plastic flow and material design and modeling

Ø  Looking for brilliant Ph.D. students to join my team at UTEP in new areas such as energy storage and extreme materials studies