Journal
INTERNATIONAL JOURNAL OF PLASTICITY
Volume 19, Issue 1, Pages 1-22Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0749-6419(01)00016-X
Keywords
anisotropy; strain hardening; dislocation substructure; crystallographic texture; polycrystal modeling; tension test; shear test
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Uniaxial and simple shear stress-strain curves were obtained for a 1050-O aluminum alloy sheet sample in different specimen orientations with respect to the material symmetry axes. For uniaxial tension, a strong anisotropy of strain hardening was observed leading to about 30% difference in uniform tensile elongation between the extreme conditions. For simple shear, the hardening was also significantly different. These results were rationalized with an analysis that accounts for dislocation substructure observations, crystallographic texture measurements and polycrystal modeling of texture-induced strength evolution. (C) 2002 Elsevier Science Ltd. All rights reserved.
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