SURFACE STRESS ON CORRUGATED SURFACES BY MULTI-SCALE MODELING
Surface stress plays a very important role in surface morphology evolution while the magnitude of it can also be affected by surface morphology. It is noted that unless experiments are carried out on high quality single crystals, the surface will typically exhibit corrugation or roughness even when it is nominally planar, stress can be quite significantly affected by surface roughness when the microstructure scale reaches the nanometer range. In this paper, we first build a theoretical model to connect the effective surface stress and the surface morphology by using the continuum mechanics method and basic capillary equations. Then, the molecular statics simulation is used to estimate the line stress on a rough surface with steps.
surface stress line stress corrugated surface step
Yan Wang Weina Li Huiling Duan
State Key Laboratory for Turbulence and Complex System, CAPT and Department of Mechanics and Aerospace Engineering, College of Engineering, Peking University, Beijing 100871 P. R. China
国际会议
广州
英文
64-68
2010-12-17（万方平台首次上网日期，不代表论文的发表时间）