Progress Report on Dislocation Behavior in Lithium Fluoride Crystals During Cyclic Loading

RE Keith; JJ Gilman

doi:10.1520/STP39308S

SYMPOSIA PAPER Published: 01 January 1959

STP39308S

Progress Report on Dislocation Behavior in Lithium Fluoride Crystals During Cyclic Loading

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It has been shown by many investigators (for example, 1,2) that in cyclic, as in monotonic, loading, plastic deformation is not homogeneous. Most of it takes place in well-defined glide bands. The amount of strain that takes place within these glide bands is often large compared to the strain per band after monotonic loading. Furthermore, since plastic flow is due to the motion of discrete flow units—dislocations—the strain within a glide band is inhomogeneous. Thus macroscopic measurements of displacements or strains are incapable of revealing the microscopic processes that occur during cyclic loading.

Author Information

Keith, RE

General Electric Research Laboratory, Schenectady, N. Y.

Gilman, JJ

General Electric Research Laboratory, Schenectady, N. Y.

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Developed by Committee: E08

Pages: 3–20

DOI: 10.1520/STP39308S

ISBN-EB: 978-0-8031-5622-7

ISBN-13: 978-0-8031-5621-0

Progress Report on Dislocation Behavior in Lithium Fluoride Crystals During Cyclic Loading

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