Upper-bound anisotropic yield locus calculations assuming 〈111〉-pencil glide
Roger W Logan,William F. Hosford +1 more
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TLDR
In this paper, an upper-bound model which combines a least-shear analysis and Piehler's maximum virtual work analysis was proposed to determine axisymmetric deformation.About:
This article is published in International Journal of Mechanical Sciences.The article was published on 1980-01-01 and is currently open access. It has received 373 citations till now. The article focuses on the topics: Rotational symmetry & Yield (engineering).read more
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Finite Element analysis of aluminum tube hydroforming based on non-quadratic yield function
TL;DR: This Taylor-type polycrystalline model was used to predict the anisotropy coefficients of Yld96 yield function and this phenomenological anisotropic yield function was implemented into ABAQUS/Standard finite element code for the hydroforming simulation of a 6061-T4 extruded aluminum tube.
Journal ArticleDOI
Applying evolutionary yield function to predicting the deformation of microstructure-sensitive high-RRR niobium
TL;DR: In this article, an evolutionary yield function having coefficients that evolve with plastic deformation is introduced to account for gradients in microstructure and texture that evolve differently in different layers of the material.
Journal ArticleDOI
Evaluation of Prediction Accuracy for Anisotropic Yield Functions Using Cruciform Hole Expansion Test
TL;DR: In this article, the authors proposed an original cruciform hole expansion test to evaluate the prediction accuracy of the anisotropic yield function, which is free of friction and bending, without the influences of friction or the Bauschinger effect, or the need to consider the stress-strain curve in highstrain region.
Proceedings ArticleDOI
Plastic Deformation Characteristics Of AZ31 Magnesium Alloy Sheets At Elevated Temperature
TL;DR: In this article, the authors used biaxial tensile test machine yield loci of AZ31 magnesium alloy sheet were obtained at elevated temperature and compared with the theoretical predictions based on the Von-Mises, Hill, Logan-Hosford, and Barlat model.
Principles of the draw-bend springback test
TL;DR: In this article, the authors focus on the principles of springback for 6022-T4 aluminum sheets, using a special draw-bend test with a range of sheet tensions and tool radii.
References
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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
CXXVIII. A theoretical derivation of the plastic properties of a polycrystalline face-centred metal
J.F.W. Bishop,Rodney Hill +1 more
TL;DR: In this paper, it was shown that the work-hardness of an isotropic aggregate of face-centred cubic crystals is a function only of the total plastic work if the grains hardened equally.
Journal ArticleDOI
Calculation of the taylor factor and lattice rotations for bcc metals deforming by pencil glide
J. M. Rosenberg,H. R. Piehler +1 more
TL;DR: In this article, the Taylor factor and the corresponding lattice rotations for tension or compression have been computed for grains of various orientations postulated to slip on arbitrary planes in 〈111〉 directions.
Journal ArticleDOI
The anomalous behaviour of aluminium sheet under balanced biaxial tension
John Woodthorpe,Roger Pearce +1 more
TL;DR: In this paper, the authors investigated the anomalous behavior of aluminium in uniaxial and biaxiaial tension and showed that anisotropic plasticity theory does not hold for all metals.
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Plastic behavior and stretchability of sheet metals. Part I: A yield function for orthotropic sheets under plane stress conditions
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