Journal ArticleDOI
The anisotropy of age-hardened Al-4 pct Cu single crystals during plane-strain compression
W. F. Hosford,R. H. Zeisloft +1 more
TLDR
In this article, the authors used a model in which compatibility is maintained between the matrix and precipitate platelets, the platelets both deforming and rotating, and predicted that normally weak orientations are strengthened more by precipitation than normally hard orientations.Abstract:
Plane-strain compression tests were made on age-hardened Al-4 pct Cu single crystals of various orientations. The resulting stress-strain curves showed much less anisotropy than would be expected from single-phase crystals under the same conditions of testing. The data are explained by a model in which compatibility is maintained between the matrix and the precipitate platelets, the platelets both deforming and rotating. This model predicts that normally weak orientations are strengthened more by precipitation than normally hard orientations.read more
Citations
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Journal ArticleDOI
Application of modern aluminum alloys to aircraft
E.A. Starke,J.T. Staley +1 more
TL;DR: Aluminum alloys have been the primary material of choice for structural components of aircraft since about 1930 as discussed by the authors and have been used extensively in high-performance military aircraft and are being specified for some applications in modern commercial aircraft, including the fuselage, wing, and supporting structure of commercial airliners and military cargo and transport.
Journal ArticleDOI
Crystallographic texture, anisotropic yield surfaces and forming limits of sheet metals
TL;DR: In this article, a concise review of different proposed phenomenological equations that describe the behavior of sheet metals and their influence on theoretical forming limits is presented, and geometrical features of yield surface shapes necessary to achieve high formability are discussed.
Journal ArticleDOI
Effects of strain localization on surface roughening during sheet forming
TL;DR: In this paper, numerical simulations of evolving surface roughening in sheet have been preformed to determine the influence of microstructure and mechanical properties on strain and grain size.
Journal ArticleDOI
Material modeling of 6016-O and 6016-T4 aluminum alloy sheets and application to hole expansion forming simulation
TL;DR: In this article, the influence of heat treatment on the anisotropic plastic deformation behaviors of 6016-O and 6016 T4 aluminum alloy sheets was investigated and an appropriate yield function for each material was determined and employed in the finite element analysis of the hole expansion forming process.
Journal ArticleDOI
Precipitation strengthening of stress-aged Al–xCu alloys
Aiwu Zhu,J Chen,Edgar A. Starke +2 more
TL;DR: In this paper, the effects of stress aging on yield strength and yield anisotropy of single crystal and cube-textured polycrystalline Al-xCu alloys were investigated.
References
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Book
Structure of Metals
TL;DR: The first serious application of the microscope to the study of metallic structure was made in 1864 by Dr. H. Sorby, of Sheffield, but the lead then given was not followed for nearly a quarter of a century as mentioned in this paper.
Journal ArticleDOI
XLVI. A theory of the plastic distortion of a polycrystalline aggregate under combined stresses.
J.F.W. Bishop,Rodney Hill +1 more
TL;DR: In this paper, a general relationship between stress and plastic strain in polycrystalline aggregate is derived for any metal in which individual crystals deform by slipping over preferred planes under a critical shear stress.
Journal ArticleDOI
Mechanical Behavior of Materials
TL;DR: In this article, the authors describe the behavior of materials in terms of Mechanical behavior of Materials and Mechanical Behavior of Materials (MBE) of materials, including the following types of materials:
Journal ArticleDOI
Anisotropy of strength in single crystals under plane strain compression
TL;DR: In this article, the strength of a crystal undergoing deformation depends on the crystal orientation and the geometry of deformation, and the strength differences by a factor of two may be obtained this way.
Journal ArticleDOI
Plane-strain compression of aluminum crystals
TL;DR: In this article, a plane-strain compression test was used to investigate the work-hardening of aluminum crystals deforming by multiple slip, and the curves fall in a narrow band, indicating that the basic shear stress for slip depends primarily on the amount of prior slip and that the combination of active slip is of much less importance.
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