On Gradient Nanomechanics:Plastic Flow in Nanopolycrystals

摘要：

Gradient nanomechanics is a generalized continuum mechanics framework accounting for bulksurface interactions in the form of gradient terms that enter in the evolution equations of the relevant constitutive variables and/or in the governing field equations. This approach is discussed in the paper by developing appropriate differential equations for the plastic strain and/or the structural defects that bring this about. The effectiveness of the approach is illustrated by considering size-dependent stressstrain curves for nanopolycrystals with varying grain size.

作者: X.Zhang A.E.Romanov E.C.Aifantis

作者单位: LMM,Polytechnic School,Aristotle University,Thessaloniki 54124,Greece Civil Engineering and Mechanic LMM,Polytechnic School,Aristotle University,Thessaloniki 54124,Greece loffe Physico-Technical Instit LMM,Polytechnic School,Aristotle University,Thessaloniki 54124,Greece

会议类型: 国际会议

会议名称: 5th International Conference on Nanomaterials by Severe Plastic Deformation(第五届剧烈塑性变形纳米材料国际会议)

会议地点: 南京

会议语种:英文

页码: 991-996

在线出版日期: 2011-03-01（万方平台首次上网日期，不代表论文的发表时间）