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A Computational Model for Intergranular Fracture in Nanocrystalline and Ultra-Fine Polycrystalline Metals
Wu B(吴波); Wei YG(魏悦广)
Source PublicationMaterials Science Forum
2009
Volume633-634Pages:39-53
AbstractBy means of finite element method which is based on the conventional theory of mechanism-based strain gradient plasticity, cohesive interface model is used to study the intergranular fracture in polycrystalline metals with nanoscale and ultra-fine grains. A systematical study on the overall strength and ductility of polycrystalline aggregates which depend on both grain interiors and grain boundaries for different grain sizes is performed. The results show that the overall strength and ductility of polycrystalline aggregates with nanoscale and ultra-fine grains are strongly related to the competition of grain boundaries deformation with that in grain interiors. Finally, the deformation and failure behavior of nanocrystalline nickel are described by using the computational model.
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Language英语
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/49462
Collection非线性力学国家重点实验室
Recommended Citation
GB/T 7714
Wu B,Wei YG. A Computational Model for Intergranular Fracture in Nanocrystalline and Ultra-Fine Polycrystalline Metals[J]. Materials Science Forum,2009,633-634:39-53.
APA 吴波,&魏悦广.(2009).A Computational Model for Intergranular Fracture in Nanocrystalline and Ultra-Fine Polycrystalline Metals.Materials Science Forum,633-634,39-53.
MLA 吴波,et al."A Computational Model for Intergranular Fracture in Nanocrystalline and Ultra-Fine Polycrystalline Metals".Materials Science Forum 633-634(2009):39-53.
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