| 非局部弹性中双相介质螺位错的表面位错模型 |
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| 引用本文： | 高飞. 非局部弹性中双相介质螺位错的表面位错模型[J]. 兰州大学学报(自然科学版), 1991, 27(1): 25-34 |
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| 作者姓名： | 高飞 |
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| 作者单位： | 兰州大学材料科学系 |
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| 摘 要： |
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| 关 键 词： | 表面位错模型 螺位错 双相介质 |
The Surface Dislocation Model for Screw Dislocation of Bi--Medium in Non--local Elasticity |
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| Gao Fei. The Surface Dislocation Model for Screw Dislocation of Bi--Medium in Non--local Elasticity[J]. Journal of Lanzhou University(Natural Science), 1991, 27(1): 25-34 |
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| Authors: | Gao Fei |
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| Affiliation: | Gao Fei Department of Material Science |
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| Abstract: | In this paper, the surface dislocation model is used to obtain a methodto solve the non-local stresses of screw dislocation in a bi-medium. Theexact solution of non-local stresses of screw dislocation under two particularcases and the force acting on screw dislocation due to existing interfaceare given. All classical singularities are eliminated. Estimates are providedfor the crtical shear stress which will produce a single disocation and forthe maximum force which acts on the screw dislocation due to existinginterface. |
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| Keywords: | non-local elasticity bi-medium surface dislocation model dislocation core screw dislocation |
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