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Geometrically necessary dislocations

Index Geometrically necessary dislocations

Geometrically necessary dislocations are like-signed dislocations needed to accommodate for plastic bending in a crystalline material. [1]

7 relations: Burgers vector, Crystal, Dislocation, Frank–Read source, Tensile testing, Tensor, Work hardening.

Burgers vector

In physics, the Burgers vector, named after Dutch physicist Jan Burgers, is a vector, often denoted as b, that represents the magnitude and direction of the lattice distortion resulting from a dislocation in a crystal lattice.

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Crystal

A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

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Dislocation

In materials science, a dislocation or Taylor's dislocation is a crystallographic defect or irregularity within a crystal structure.

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Frank–Read source

In materials science, a Frank–Read source is a mechanism explaining the generation of multiple dislocations in specific well-spaced slip planes in crystals when they are deformed.

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Tensile testing

Tensile testing, also known as tension testing, is a fundamental materials science and engineering test in which a sample is subjected to a controlled tension until failure.

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Tensor

In mathematics, tensors are geometric objects that describe linear relations between geometric vectors, scalars, and other tensors.

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Work hardening

Work hardening, also known as strain hardening, is the strengthening of a metal or polymer by plastic deformation.

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References

[1] https://en.wikipedia.org/wiki/Geometrically_necessary_dislocations

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