Scientists at Chinese Academy of Sciences Target Mechanical Engineering

摘要

2011 JUL 6 - (VerticalNews.com) -- "When the thickness of metallic cantileverrnbeams reduces to the order of micron, a strong size effect of mechanical behavior has beenrnfound. In order to explain the size effect in a micro-cantilever beam, the couple-stress theoryrn(Fleck and Hutchinson, J Mech Phys Solids 41:1825-1857, 1993) and the C-W strain gradientrntheory (Chen and Wang, Acta Mater 48:3997-4005, 2000) are used with the help of thernBernoulli-Euler beam model," scientists writing in the journal Acta Mechanica report.