The shielding effects of a screw dislocation near an elliptically blunted crack tip

Tianlei Li; Zhonghua Li; Jun Sun

doi:10.1016/j.scriptamat.2006.06.028

The shielding effects of a screw dislocation near an elliptically blunted crack tip

Tianlei Li
, Zhonghua Li
, Jun Sun

材料科学与工程学院

Shanghai Jiao Tong University

科研成果: 期刊稿件 › 文章 › 同行评审

15 引用（Scopus）

摘要

An explicit solution for describing the shielding effects arising from a screw dislocation near an elliptically blunted crack is presented. This is a general solution which may degenerate to the solutions of a finite crack and an infinite crack, and may apply for a dislocation either emitted from the crack surface or originating elsewhere and for a dislocation located anywhere around the crack tip. Based on the solution, the effects of the morphology of the blunt crack and the position of the dislocation on the shielding are examined.

源语言	英语
页（从-至）	703-706
页数	4
期刊	Scripta Materialia
卷	55
期	8
DOI	https://doi.org/10.1016/j.scriptamat.2006.06.028
出版状态	已出版 - 10月 2006

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10.1016/j.scriptamat.2006.06.028

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abstract = "An explicit solution for describing the shielding effects arising from a screw dislocation near an elliptically blunted crack is presented. This is a general solution which may degenerate to the solutions of a finite crack and an infinite crack, and may apply for a dislocation either emitted from the crack surface or originating elsewhere and for a dislocation located anywhere around the crack tip. Based on the solution, the effects of the morphology of the blunt crack and the position of the dislocation on the shielding are examined.",

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AU - Li, Tianlei

AU - Li, Zhonghua

AU - Sun, Jun

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N2 - An explicit solution for describing the shielding effects arising from a screw dislocation near an elliptically blunted crack is presented. This is a general solution which may degenerate to the solutions of a finite crack and an infinite crack, and may apply for a dislocation either emitted from the crack surface or originating elsewhere and for a dislocation located anywhere around the crack tip. Based on the solution, the effects of the morphology of the blunt crack and the position of the dislocation on the shielding are examined.

AB - An explicit solution for describing the shielding effects arising from a screw dislocation near an elliptically blunted crack is presented. This is a general solution which may degenerate to the solutions of a finite crack and an infinite crack, and may apply for a dislocation either emitted from the crack surface or originating elsewhere and for a dislocation located anywhere around the crack tip. Based on the solution, the effects of the morphology of the blunt crack and the position of the dislocation on the shielding are examined.

KW - Blunt crack

KW - Mode III crack

KW - Screw dislocation

KW - Shielding effect

UR - https://www.scopus.com/pages/publications/33847229146

U2 - 10.1016/j.scriptamat.2006.06.028

DO - 10.1016/j.scriptamat.2006.06.028

M3 - 文章

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VL - 55

SP - 703

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JO - Scripta Materialia

JF - Scripta Materialia

IS - 8

ER -

The shielding effects of a screw dislocation near an elliptically blunted crack tip

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