主  办：   机电学院

爆炸科学与技术国家重点实验室

           安全与防护协同创新中心

报告题目： Simulation of High Speed Impact

报告人： Dr. Jing Xie

         Israel Institute of Technology

时间：2018年8月28日上午10:00

地点：北京理工大学3号教学楼146会议室

报告人简介：

Jing Xie received a 2 years Postdoctoral training in the Dynamic Fracture Laboratory of Professor Daniel Rittel in the Mechanical Engineering Faculty at Technion. Prior to this she graduated from INSA De Lyon supervised by the Professor Daniel Nélias in the LAMCoS Laboratory working on Cold Spray technology. She holds B.S. and M.S. in Materials Science and Engineering from Harbin Institute of Technology. Throughout the years, Jing Xie spans the research subjects of coating formation, surface erosion, surface roughness, wind energy, numerical simulation and industrial application. Her research interest is in the properties and performances of materials under high speed impact situation, and the relevant surface phenomena and mechanisms.

报告摘要：

Simulation methods and techniques are presented to solve problems involving high speed material interactions that can lead to large deformations, as well as followed by material failure. Four numerical approaches available in ABAQUS/Explicit were investigated, which are Lagrangian, Arbitrary Lagrangian Eulerian (ALE), Smoothed Particle Hydrodynamics (SPH) and Coupled Eulerian Lagrangian (CEL). Among these four approaches, the CEL analyses are generally more suitable for the high speed impact problems. Two examples, cold spray and waterjet peening, pertaining to high speed impact, surface erosion, surface roughness are discussed along with an introduction of industrial applications of these two technologies.