期刊论文

Peng, X. H.

英文

Acta Mechanica

0001-5970

2018

229

9

3901-3913

10.1007/s00707-018-2196-1

The authors would like to deeply appreciate the support from the National Natural Science Foundation of China (Grant No. 11602308). The work was also supported by the Introducing High-level Talent Research Fund of Central South University of Forestry and Technology (104-0096). Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

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The theoretical model of an edge dislocation near interface collinear crack tips in nanocrystalline bi-materials with cooperative grain boundary sliding and migration is formulated. As a typical example, we focus on analyzing the effect of two disclination dipoles produced by cooperative grain boundary sliding and migration on an edge dislocation emitting from a finite interfacial crack tip in nanocrystalline bi-materials. The dislocation force and the critical stress intensity factors for an edge dislocation emitting from an interface collinear crack tip under remote plane loadings are derive...