Mechanics of Sandwich Nanostructures

夹层纳米结构的力学伦斯勒理工学院的黄汉臣和乔治·德沃夏克这个项目旨在确定一种新型的纳米夹层结构的应变-结构关系。基于自组织原理，首席研究人员和他的团队在二氧化硅衬底上沉积了铜。铜自组织成三层：均匀的111织构到多孔的110织构，再回到均匀的111织构，形成了一种新颖的三明治结构，每一层的厚度为数百纳米。以这种夹层结构为原型，研究人员将采用原子模拟和多尺度细观力学模拟相结合的方法来建立应变-结构关系。该项目的科学贡献将在于建立纳米级夹层结构的应变-结构关系。应变-结构关系将使人们能够设计三明治结构(就其层厚度而言)，并将其应用于各种纳米技术。该项目的更广泛影响包括对研究生的教育，特别是对那些代表性不足的研究生的教育，并丰富了RPI的材料纳米力学研究生课程。

Mechanics of Sandwich NanostructuresHanchen Huang and George Dvorak, Rensselaer Polytechnic InstituteThis project aims to determine the strain-structure relationship of a novel sandwich nanostructure. Based on self-organization, the Principal Investigator and his team have deposited Cu on SiO2 substrate. The Cu self-organizes into three layers: uniform 111 texture to porous 110 texture and back to uniform 111 texture, forming a novel sandwich structure with each layer being hundreds nanometers in thickness. Taking this sandwich structure as a prototype, the investigators will establish the strain-structure relationship by using a combination of atomistic simulations and multiscale micromechanics modeling. The scientific contribution of this project will be in the establishment of strain-structure relationship of nanoscale sandwich structures. The strain-structure relationship will enable one to design the sandwich structures (in terms of its layers thicknesses) and to apply it in various nanotechnologies. The broader impacts of this project include the education of graduate students, particularly those underrepresented, and the enrichment of graduate course Nanomechanics of Materials at RPI.