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Micromechanics of slip bands on a free surfaceA micromechanics analysis for the formation and propagation of slip bands on the free surface of a polycrystal under monotonic loading is presented. For the growth of slip bands, the analysis satisfies the conditions of both equilibrium and displacement continuity, as well as the relation between slip and the resolved shear stress throughout the polycrystal. Numerical calculations show how the microstress field causes the concentration of plastic deformation in discrete sliding bands and give results which are in good qualitative agreement with known slip band observations on aluminum single crystals.
Document ID
19770003295
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Lin, S. R.
(Aerospace Corp. El Segundo, CA, United States)
Lin, T. H.
(Univ. Calif. Los Angeles, United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1976
Publication Information
Publication: NASA. Langley Res. Center Adv. in Eng. Sci., Vol. 1
Subject Category
Solid-State Physics
Accession Number
77N10237
Funding Number(s)
CONTRACT_GRANT: NSF ENG-74-03809
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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