葡京集团娱乐网址394“创源”大讲堂研究生学术讲座
讲座时间：2016年12月28日（周三）上午 9:30
讲座地点：九里校区行政楼2楼学术报告厅
主讲：ZHOU Caizhi助理教授（美国密苏里科学技术大学） 
题 目：Multiscale modeling of advanced metallic structures: from single phase to multiple phases
简 历： 天津大学学士、硕士，艾奥瓦州立大学博士。2011-2012年洛斯阿拉莫斯国家实验室博士后，现为密苏里科学技术大学助理教授。研究领域：材料变形与增强机制、极端条件下材料性能等。发表论文30余篇，获NSF CAREER award。
内容简介：Advanced nanostructured materials, such as metallic nanolayered composites, nanograined and nanotwinned metals and nanostructured coatings, have drawn increased attention from the materials science community because of their potential for ultrahigh strength, increased ductility, thermal stability and elevated fracture toughness. Fundamental barriers must be resolved to manufacture such advanced nanostructured materials in bulk form and at reduced cost. Significant research has been conducted in recent years to understand the underlying mechanisms that control the mechanical behavior of these advanced nanostructured materials. Both experiments and modeling have revealed that as microstructure length-scales are reduced from micrometer- to nanometer levels, interfaces, such as grain boundaries and phase boundaries, become crucial in determining the mechanical behavior of nanostructured materials. Through the development of computer resources and novel experimental methods, macroscopic and phenomenological descriptions of mechanical behaviors are being substituted by multiscale approaches rooted in deeper understanding of microstructure- and defect-level processes during the deformation in crystalline materials. Challenges remain in developing models with truly predictive capability in applications to nano-scale structures. This talk will review different modeling tools at length scales and a new hierarchical multiscale modeling framework to study mechanical behavior of nanostructured materials.
主办：研究生院
承办：力学与工程学院 应用力学与结构安全四川省重点实验室
