摘要
本文回顾了建立在物理介视力学基础上的固体范性形变与断裂的研究概况，从物理介现力学角度看，处于载荷下的固体是一个多层次的自治体系．依尺度不变原理，在微观、介观、宏观尺度上的范性流变，本质上是相互关联的．整体介观体积在介观尺度上按照“切变加旋转”的方式运动．固体范性形变与断裂可考虑为同样过程的二个阶段．
The research review on plastic deformation and fracture of solids based on phvsicalmesomechanics is presented. A solid under loading is considered in physicalmesomechanics as multilevel self-consistent system. where the plastic flows atmicro-meso- and macrolevels are natrually interrelated according to the principle ofscaIe invarlance.Bulk mesovolumes are moved at the mesoscale level according toscheme 'shear+rotation'. Plastic deformation and fracture of solids are considered astwo stages of the same process.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1997年第2期187-197,共11页
Acta Metallurgica Sinica
关键词
介观力学
范性形变
断裂
固体
mesomechanics, plastic deformation, fracturel
