Evaluation of anisotropic yield functions for aluminum sheets

Wu, P.D.; Jain, M.; Savoie, Jean; MacEwen, S.R.; Tuǧcu, P.; Neale, K.W.

doi:10.1016/s0749-6419(01)00033-x

Cited by 100 publications

(77 citation statements)

References 8 publications

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“…Thus, considerable advances have been achieved during the last twenty years in the prediction of the sheet metal forming limits by employing yield criteria proposed to provide an improved description of plastic flow under conditions of biaxial loading. For instance, predictions in good agreement with experimental results have been obtained in the case of aluminum alloys [9][10] with the yield criteria proposed by Barlat et al 11 , Karafillis and Boyce 12 and Barlat et al 13 . The effects of the through-thickness normal and shear stress components have also been taken into account within the framework of the M-K model, see the recent works [14][15][16][17][18] .…”

Section: Introductionsupporting

confidence: 78%

Experimental analysis and theoretical predictions of the limit strains of a hot-dip galvanized interstitial-free steel sheet

2013

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In this work, the formability of a hot-dip galvanized interstitial-free (IF) steel sheet was evaluated by means of uniaxial tensile and Forming Limit Curve (FLC) tests. The FLC was defined using the flat-bottomed Marciniak's punch technique, where the strain analysis was made using a digital image correlation software. A plastic localization model was also proposed wherein the governing equations are solved with the help of the Newton's method. The investigated hot-dip galvanized IF steel sheet presented a very good formability level in the deep-drawing range consistent with the measured Lankford values. The predicted limit strains were found to be in good agreement with the experimental data of the hot-dip galvanized IF steel sheet owing to the definition of the localization model geometrical imperfection as a function of the experimental surface roughness evolution and, in particular, to the yield surface flattening near to the plane-strain stress state authorized by the adopted yield criterion.

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Section: Introductionsupporting

confidence: 78%

Experimental analysis and theoretical predictions of the limit strains of a hot-dip galvanized interstitial-free steel sheet

2013

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“…Phenomenological plasticity theories consider initial anisotropy through a yield criterion. A number of such yield criterions has so far been proposed by Hill [18], Barlat et al [19,20], Karafillis and Boyce [21], Drucker [22], etc., and equally studies have been carried out to compare these yield functions, for instance [23][24][25][26][27]. Hill'48 yield function is widely used in finite element simulation studies and has been very useful for explaining some phenomena associated with anisotropic plasticity.…”

Section: Deformation Behaviour Of Blank Sheet Materialsmentioning

confidence: 99%

Effect of anisotropy on the deep-drawing of mild steel and dual-phase steel tailor-welded blanks

Padmanabhan

Baptista

Oliveira

et al. 2007

Journal of Materials Processing Technology

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Tailor-welded blanks made of dissimilar, uniform or non-uniform thickness materials have potential applications in automobile industries. Compared to the base metal, the formability of tailor-welded blank is less due to the presence of weld area and strength mismatch between component blanks. Most sheet metals used to produce tailor-welded blanks have anisotropy induced during pre-processing stage due to large deformation. The orientation of the blank sheet rolling direction and the combination of the blank sheet materials has significant influence on the deformation behaviour. The effect of anisotropy in the tailor-welded blank and the orientation of blank sheets rolling direction during deep-drawing process are investigated in this study. Finite element analysis of deep-drawing mild steel and dual-phase steel tailor-welded blank models was carried out using research purpose FE code DD3IMP; to form a basis for tailor-welded blank design and development for a part. Anisotropy in the blank sheets has moderate influence and its contribution to increased material flow depends on the mechanical properties of the blank sheets. Appropriate combination of the blank sheets rolling direction orientation can significantly improve the formability of the tailor-welded blank in the deep-drawing of square cup.

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“…Mollica et al (2001) developed a general three dimensional model, which can reproduce the stress-strain response at loading reversals and can be applied to more general changes in loading direction. Deformation induced anisotropy, which leads to different subsequent deformations depending on the loading direction has also been investigated (Ishikawa, 1997;Ishikawa and Sasaki, 1998;Kalidindi, 2001;Yao and Cao, 2002;Tuğcu et al, 2002;Garmestani et al, 2002;Wu, 2002;Chiang et al, 2002;Geng et al, 2002;Wu et al, 2003;Kowalczyk and Gambin, 2004;Tsakmakis, 2004;Häusler et al, 2004;Bron and Besson, 2004;Vincent et al, 2004;Cazacu and Barlet, 2004;Kuwabara et al, 2005;Wu et al, 2005;Barlet et al, 2005). Kalidindi (2001) reviewed and summarized models of anisotropic strain hardening and deformation textures in low stacking fault energy fcc metals and reported a new approach in modeling the deformation behavior of the materials.…”

Section: Introductionmentioning

confidence: 99%

Investigation of subsequent viscoplastic deformation of austenitic stainless steel subjected to cyclic preloading

Mayama

Sasaki

2006

International Journal of Plasticity

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This paper investigates the effects of cyclic preloading on the subsequent viscoplastic deformation. A series of experiments such as the subsequent creep, subsequent stress relaxation, and cyclic loading with strain rate changes after cyclic preloading were conducted with Type 304 stainless steel at room temperature. The cyclic proportional and non-proportional loadings were conducted as cyclic preloadings.Tension-compression loading was chosen as the cyclic proportional loading, and circular and cruciform loading as the cyclic non-proportional loading. The experimental results showed that the subsequent deformation changes with the number of cycles of cyclic preloading. The differences in the subsequent deformation were examined by transmission electron microscopy (TEM). The observations suggest that changes in the dislocation structure depending on the number of cycles of cyclic preloading affect the subsequent viscoplastic deformation.

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Evaluation of anisotropic yield functions for aluminum sheets

Cited by 100 publications

References 8 publications

Experimental analysis and theoretical predictions of the limit strains of a hot-dip galvanized interstitial-free steel sheet

Experimental analysis and theoretical predictions of the limit strains of a hot-dip galvanized interstitial-free steel sheet

Effect of anisotropy on the deep-drawing of mild steel and dual-phase steel tailor-welded blanks

Investigation of subsequent viscoplastic deformation of austenitic stainless steel subjected to cyclic preloading

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