Upper-bound anisotropic yield locus calculations assuming 〈111〉-pencil glide
Roger W Logan,William F. Hosford +1 more
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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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Mechanical characterization and constitutive parameter identification of anisotropic tubular materials for hydroforming applications
Ali Khalfallah,Ali Khalfallah,Marta Oliveira,José Alves,Temim Zribi,Hedi Belhadjsalah,Luís Menezes +6 more
TL;DR: In this paper, the authors identify the constitutive parameters of anisotropic tubular materials and verify the accuracy of models' prediction based on information obtained from tensile tests, performed on samples cut from the tubes, and from the free tubular bulge test, using a home-developed bulge forming machine.
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An analytical approach for the prediction of forming limit curves subjected to combined strain paths
TL;DR: In this paper, an analytical approach for the prediction of forming limit curves is proposed to incorporate the effect of combined strain paths, considering the directional dependency of pre-straining and further straining.
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Numerical modeling for accurate prediction of strain localization in hole expansion of a steel sheet
TL;DR: In this paper, the authors investigated a numerical modeling approach to predict hole expansion behavior within the framework of a finite element (FE) analysis using the anisotropic yield functions Yld2000-2d and Yld2004-18p for the plane stress and three-dimensional elements, respectively.
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Unit cell debonding analyses for arbitrary orientation of plastic anisotropy
TL;DR: In this article, the debonding of rigid inclusions embedded in the elastic-plastic aluminum alloy Al 2090-T3 is analyzed numerically using a unit cell model taking full account of finite strains.
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Modeling of large strain multi-axial deformation of anisotropic metal sheets with strength-differential effect using a Reduced Texture Methodology
Meng Luo,G. Rousselier +1 more
TL;DR: In this article, a reduced texture method is employed to model the anisotropic plasticity of a 6260-T6 thin-walled aluminum extrusion with a focus on the large strain multi-axial deformation with Strength-Differential Effect (SDE).
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.
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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.
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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.
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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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