期刊
ARCHIVE OF APPLIED MECHANICS
卷 89, 期 3, 页码 467-483出版社
SPRINGER
DOI: 10.1007/s00419-018-1425-3
关键词
Dislocations; Thermodynamics; Energy; Disorder temperature; Size effect
类别
资金
- China Scholarship Council (CSC)
The present paper studies non-uniform plastic deformations of crystals undergoing anti-plane constrained shear. The asymptotically exact energy density of crystals containing a moderately large density of excess dislocations is found by the averaging procedure. This energy density is extrapolated to the cases of extremely small or large dislocation densities. Taking into account the configurational temperature and the density of redundant dislocations, we develop the thermodynamic dislocation theory for non-uniform plastic deformations and use it to predict stress-strain curves and dislocation densities.
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