NIRT: Mechanism-Based Modeling and Simulation in Nanomechanics

纳米力学中基于机理的建模与仿真G.徐，加州大学河滨分校机械工程系。斯坦福大学机械工程系。D.斯坦福大学材料科学与工程系。Huang，Department of Mechanical and Industrial Engineering，University of Illinois at Urbana-ChampaignAbstract本研究旨在为材料的纳米力学行为的研究开发有效的方法。特别是，结合原子模拟和连续介质模型将被开发来研究位错成核和运动的能量学以及它们各自在纳米级离散塑性变形中的作用。纳米压痕技术将用于探测材料在纳米尺度上的力学行为，并验证所开发的方法。重点将是连接原子模拟和连续方法，以开发一个基于机制的模型，该模型能够预测晶体材料在纳米到亚微米的长度尺度上的机械行为。与国家实验室和行业伙伴的合作将侧重于所开发模型的实际应用。

Mechanism-Based Modeling and Simulation in NanomechanicsG. Xu, Department of Mechanical Engineering, University of California at RiversideH. Gao, Department of Mechanical Engineering, Stanford UniversityW. D. Nix, Department of Materials Science and Engineering, Stanford UniversityY. Huang, Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-ChampaignAbstractThis research is aimed at developing effective methodology for the study of nanoscale mechanical behavior of materials. In particular, combined atomistic simulations and continuum models will be developed to investigate the energetics of dislocation nucleation and motion and their respective roles in nanoscale discrete plastic deformation. The nanoindentation technique will be used to probe the mechanical behavior of materials at the nanoscale as well as to validate the developed methodology. The emphasis will be to link atomistic simulations and continuum approaches to develop a mechanism-based model that is able to predict mechanical behavior of crystalline materials at length scales ranging from nanometers to submicrons. Collaborations with national laboratory and industry partners will focus on practical applications of the developed models.