Effect of Secondary Orientation on the Mechanical Behavior of a Unit Cell Model with a Film-cooling Hole in Single Crystal

A 3D unit cell model with a hole has been set up to analyze the stress and strain distribution near the hole of nickel-based single crystal. The emphasis is placed on the influence of secondary orientation on the mechanical behavior of cell model. The crystallographic slip theory was applied to calc...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2017-10, Vol.241 (1), p.12010
Main Authors: Cao, Gang, Wen, Zhixun, Liu, Dashun, Yue, Zhufeng
Format: Article
Language:English
Subjects:
Crystal structure
Crystallography
Density distribution
Energy distribution
Flux density
Mechanical properties
Orientation effects
Plastic deformation
Shear stress
Single crystals
Strain distribution
Stress concentration
Stress distribution
Three dimensional models
Unit cell
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Summary:A 3D unit cell model with a hole has been set up to analyze the stress and strain distribution near the hole of nickel-based single crystal. The emphasis is placed on the influence of secondary orientation on the mechanical behavior of cell model. The crystallographic slip theory was applied to calculate the elasto-plastic deformation. The results show that, the maximum Mises stress and the maximum resolved shear stress are strongly dependent on the secondary orientation. The minimum plastic strain energy density criterion predicts that the optimal orientation of the hole is crystallographic orientation. In addition, the secondary orientation has limited influence on the stress distribution near the hole. But the influence of the secondary orientation on the plastic strain energy density distribution around the hole is obvious.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/241/1/012010