Publications
188 results found
Balint DS, Deshpande VS, Needleman A, et al., 2005, A discrete dislocation plasticity analysis of grain-size strengthening, MAT SCI ENG A-STRUCT, Vol: 400, Pages: 186-190
The dependence of shear yield strength on grain size is analyzed using discrete dislocation dynamics. Plastic deformation is modeled through the motion of edge dislocations in an elastic solid. The lattice resistance to dislocation motion, dislocation nucleation, dislocation interaction with obstacles and dislocation annihilation are incorporated through a set of constitutive rules. Grain boundaries are modeled as impenetrable to dislocations. Single slip is assumed within each grain and a checkerboard-like arrangement of grains is used as a unit cell for the polycrystal. Doubly-periodic pure shear calculations are carried out for planar polycrystals with grain sizes in the range 0.2 mu m <= d <= 5 mu m and for two values of initial dislocation source density that differ by an order of magnitude. The offset flow strength varies with grain size, d, as d(-n), with n = 0.40 or n = 0.45, depending on source density. The value of the offset flow strength is higher for the low source density polycrystal. Furthermore, for each initial source density, the flow strength was found to scale roughly with dislocation density. (c) 2005 Elsevier B.V. All rights reserved.
Balint DS, Hutchinson JW, 2005, An analytical model of rumpling in thermal barrier coatings, JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, Vol: 53, Pages: 949-973, ISSN: 0022-5096
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- Citations: 153
Balint DS, Hutchinson JW, 2003, Undulation instability of a compressed elastic film on a nonlinear creeping substrate, ACTA MATERIALIA, Vol: 51, Pages: 3965-3983, ISSN: 1359-6454
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- Citations: 64
Balint DS, Hutchinson JW, 2001, Mode II edge delamination of compressed thin films, JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME, Vol: 68, Pages: 725-730, ISSN: 0021-8936
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- Citations: 18
Soutas-Little RW, Inman DJ, Balint DS, 1999, Maple Supplement for Engineering Mechanics:Dynamics, New Jersey, Publisher: Prentice Hall, ISBN: 9780130114686
Soutas-Little RW, Inman DJ, Balint DS, 1999, Mathematica Supplement for Engineering Mechanics:Dynamics, New Jersey, Publisher: Prentice Hall, ISBN: 9780130113719
Soutas-Little RW, Inman DJ, Balint DS, 1999, Maple Supplement for Engineering Mechanics:Statics, New Jersey, Publisher: Prentice Hall, ISBN: 9780130114273
Soutas-Little RW, Inman DJ, Balint DS, 1999, Mathematica Supplement for Engineering Mechanics:Statics, New Jersey, Publisher: Prentice Hall, ISBN: 9780130113689
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