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
Citations
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Numerical prediction of sheet metal forming limits
TL;DR: In this article, the limits of sheet metal were established for the first time, based on a set of symbols, including symbols, symbols, and symbols of the alphabet of the tree of life.
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Yield criterion influence on the formability prediction of SS 304 by tensile tests and bulge tests during tube hydroforming process
TL;DR: In this paper, the authors compare constitutive models to fit the hardening laws of the SS 304 tubes and the best fitted constitutive hardening model was utilized on both Hills 1948 and Hills 1990 yield criteria and the accuracy of the simulations was predicted.
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Analytical expressions of the forming limits in biaxially stretched sheets
A. Zeghloul,R. Mesrar,G. Ferron +2 more
TL;DR: In this paper, the forming limits of biaxially stretched sheets are analyzed on the basis of a linearized localization approach carried out within the framework of flow-theory of plasticity, which is an extension of previous treatments for uniaxial tensile ductilities.
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A Novel Approach to Predict the Process-Induced Mechanical Behavior of Additively Manufactured Materials
Andreas Kergaßner,Johannes A. Koepf,Matthias Markl,Carolin Körner,Julia Mergheim,Paul Steinmann +5 more
TL;DR: In this paper, a cellular automaton is used to model the grain growth during selective electron beam melting, and the resulting grain structures and textures serve as input for a mesoscopic mechanical model.
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Mechanical behavior and forming of commercially-pure niobium sheet
TL;DR: In this paper , an extensive suite of mechanical tests are performed on commercially-pure niobium (CP-Nb), including uniaxial tension, strain-rate jump, biaaxial tension and disc compression, which are used to characterize the plastic behavior of the material.
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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