Interaction between dislocations in a couple stress medium

M. Ravi Shankar; Srinivasan Chandrasekar; Thomas N. Farris

doi:https://doi.org/10.1115/1.1767172

Interaction between dislocations in a couple stress medium

M. Ravi Shankar, Srinivasan Chandrasekar, Thomas N. Farris

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Taylor's theory of crystal plasticity is reformulated for dislocations in a couple stress medium. The divergence between Taylor's approach and an approach that includes the effects of couple stresses on dislocation interactions is demonstrated. It is shown that dislocations separated by a distance that is comparable to a characteristic material length scale, have mutual interaction somewhat weaker than that predicted by classical elasticity.

Original language	English (US)
Pages (from-to)	546-550
Number of pages	5
Journal	Journal of Applied Mechanics, Transactions ASME
Volume	71
Issue number	4
DOIs	https://doi.org/10.1115/1.1767172
State	Published - Jul 2004
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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https://doi.org/10.1115/1.1767172

Cite this

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title = "Interaction between dislocations in a couple stress medium",

abstract = "Taylor's theory of crystal plasticity is reformulated for dislocations in a couple stress medium. The divergence between Taylor's approach and an approach that includes the effects of couple stresses on dislocation interactions is demonstrated. It is shown that dislocations separated by a distance that is comparable to a characteristic material length scale, have mutual interaction somewhat weaker than that predicted by classical elasticity.",

author = "Shankar, {M. Ravi} and Srinivasan Chandrasekar and Farris, {Thomas N.}",

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AU - Chandrasekar, Srinivasan

AU - Farris, Thomas N.

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N2 - Taylor's theory of crystal plasticity is reformulated for dislocations in a couple stress medium. The divergence between Taylor's approach and an approach that includes the effects of couple stresses on dislocation interactions is demonstrated. It is shown that dislocations separated by a distance that is comparable to a characteristic material length scale, have mutual interaction somewhat weaker than that predicted by classical elasticity.

AB - Taylor's theory of crystal plasticity is reformulated for dislocations in a couple stress medium. The divergence between Taylor's approach and an approach that includes the effects of couple stresses on dislocation interactions is demonstrated. It is shown that dislocations separated by a distance that is comparable to a characteristic material length scale, have mutual interaction somewhat weaker than that predicted by classical elasticity.

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JO - Journal of Applied Mechanics, Transactions ASME

JF - Journal of Applied Mechanics, Transactions ASME

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ER -

Interaction between dislocations in a couple stress medium

Abstract

ASJC Scopus subject areas

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