Formability of coated vinyl on sheet metal during deep drawing process

Lim, Yongbin; An, Teagen; Ko, Sangjin; Kim, Naksoo

doi:10.1016/j.jmatprotec.2015.08.016

Cited by 11 publications

(5 citation statements)

References 18 publications

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“…In this modified model, which is currently referred to as the GTN model, the damage‐induced plastic instability (or necking) process is governed by the growth of existing voids, nucleation of new voids during deformation, and micro‐crack coalescence in the neck region. The GTN model is widely used in analyzing many different plastic deformation processes . Matrix material has been frequently identified in recent years as anisotropic, and microvoids of nonspherical shapes in different orientations exist within the anisotropic matrix.…”

Section: Introduction and A Brief Review Of Literaturementioning

confidence: 99%

“…Several approximate yield criteria such as quadratic and nonquadratic yield criteria by Hill Hosford, and Barlat and Lian, for anisotropic ductile materials are available in literature. Numerical implementations and subsequent studies of the combination of earlier GTN model with some of the newer yield criteria can be found in other works . Furthermore, the GTN model has been extended and transformed from an isotropic matrix material to an anisotropic matrix based on the algorithm presented by Aravas .…”

Section: Introduction and A Brief Review Of Literaturementioning

confidence: 99%

“…The GTN model is widely used in analyzing many different plastic deformation processes. [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] Matrix material has been frequently identified in recent years as anisotropic, and microvoids of nonspherical shapes in different orientations exist within the anisotropic matrix. Several approximate yield criteria such as quadratic and nonquadratic yield criteria by Hill 21,22 Hosford, 23 and Barlat and Lian, 24 for anisotropic ductile materials are available in literature.…”

Section: Introduction and A Brief Review Of Literaturementioning

confidence: 99%

“…Numerical implementations and subsequent studies of the combination of earlier GTN model with some of the newer yield criteria can be found in other works. [10][11][12][13][14][15][16][17][18][19][25][26][27][28][29][30][31][32][33][34] Furthermore, the GTN model has been extended and transformed from an isotropic matrix material to an anisotropic matrix 6,8,9 based on the algorithm presented by Aravas. 35 Hill's quadratic anisotropic yield criterion is used in these studies to define equivalent stress, whereas the exact algorithm for an isotropic material is applied in the new anisotropic implementations of the GTN model.…”

Section: Introduction and A Brief Review Of Literaturementioning

confidence: 99%

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Anisotropic Gurson‐Tvergaard‐Needleman plasticity and damage model for finite element analysis of elastic‐plastic problems

Shahzamanian

2018

Numerical Meth Engineering

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Summary Implementation and analysis of the anisotropic version of the Gurson‐Tvergaard‐Needleman (GTN) isotropic damage criterion are performed on the basis of Hill's quadratic anisotropic yield theory with the definition of an effective anisotropic coefficient to represent the elastic‐plastic behavior of ductile metals. This study aims to analyze the extension of the GTN model suitable for anisotropic porous metals and to investigate the GTN model extension. An anisotropic damage model is implemented using the user material subroutine in ABAQUS/standard finite element code. The implementation is verified and applied to simulate a uniaxial tensile test on a commercially produced aluminum sheet material for three‐dimensional and plane stress test cases. Spherical and ellipsoidal micro voids are considered in the matrix material, and their effects on the uniaxial stress‐strain response of the material are analyzed. Hill's quadratic anisotropic yield theory predicts substantially large damage evolution and a low stress‐strain curve compared with those predicted by the isotropic model. An approximate model for anisotropic materials is proposed to avoid increased damage evolution. In this approximate model, Hill's anisotropic constants are replaced with an effective anisotropy coefficient. All model‐generated stress‐strain predictions are compared with the experimental stress‐strain curve of AA6016‐T4 alloy.

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Section: Introduction and A Brief Review Of Literaturementioning

confidence: 99%

Section: Introduction and A Brief Review Of Literaturementioning

confidence: 99%

Section: Introduction and A Brief Review Of Literaturementioning

confidence: 99%

Section: Introduction and A Brief Review Of Literaturementioning

confidence: 99%

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Anisotropic Gurson‐Tvergaard‐Needleman plasticity and damage model for finite element analysis of elastic‐plastic problems

Shahzamanian

2018

Numerical Meth Engineering

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“…The thickness variation was influenced by principal stresses, and deformation in the coating was observed at the flange and dies fillet profile. Also, Lim et al 36 performed numerical analysis for the prediction of formability of vinyl-coated metal (VCM) using Gurson–Tvergaard–Needleman (GTN) damage model. The formability of VCM material was evaluated by generation of forming limit curve (FLC) through dome test simulation using Nakazima specimen.…”

Section: Thinning Effectmentioning

confidence: 99%

A review on effect of thinning, wrinkling and spring-back on deep drawing process

Babu

2018

Proceedings of the Institution of Mechanical Engineers, Part B:

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There are various processes practiced in a market for manufacturing axisymmetrical cup with significant forming depth among which deep drawing process is most prompt. The deep drawing process is a forming process with ongoing interest which will have a major impact on industries in coming years. This article focuses on the current status and potential of future development of technology in the deep drawing process. First, it describes various types of approaches and techniques used in the deep drawing of different materials. This is followed by brief reviews of advantages and limitations of these technologies with its application in industries. The details of these technologies are just referred rather than explaining in detail. The further part of this article focuses on advanced methods for predicting defects like thinning, wrinkling and spring-back in deep drawing process which are mostly responsible for rejection of the components. The opportunity in the development of flexibility in deep drawing process is covered with an observed barrier in the prediction of defects such as thinning, wrinkling and spring-back. The obtained evidence indicates that deep drawing process may not be applicable for all materials, but represents an excellent opportunity in the drawing of multilayer metal and composite material sheets to complex shapes.

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Experimental Characterization of Coated Aluminum Sheets for Deep Drawing Applications

Abdennadher

Bouguecha

Behrens

et al. 2022

Lecture Notes in Mechanical Engineering

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Formability of coated vinyl on sheet metal during deep drawing process

Cited by 11 publications

References 18 publications

Anisotropic Gurson‐Tvergaard‐Needleman plasticity and damage model for finite element analysis of elastic‐plastic problems

Anisotropic Gurson‐Tvergaard‐Needleman plasticity and damage model for finite element analysis of elastic‐plastic problems

A review on effect of thinning, wrinkling and spring-back on deep drawing process

Experimental Characterization of Coated Aluminum Sheets for Deep Drawing Applications

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