Investigation on the ductile fracture of a high-strength dual-phase steel with anisotropic damage mechanics model

Zinan Li; Wenqi Liu; Fuhui Shen; Sebastian Münstermann; Junhe Lian

doi:10.25518/esaform21.4322

Investigation on the ductile fracture of a high-strength dual-phase steel with anisotropic damage mechanics model

Zinan Li, Wenqi Liu, Fuhui Shen, Sebastian Münstermann, Junhe Lian^*

^*Corresponding author for this work

Department of Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

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Abstract

In this study, a hybrid experimental and numerical investigation is implemented to characterize the plasticity and ductile fracture behavior of a high-strength dual-phase steel. Uniaxial tensile tests are conducted along the three typical directions of rolled sheet metals for the anisotropic plastic behavior, while the hydraulic bulge test is applied for the flow behavior under equiaxial biaxial tension. Further tensile tests are conducted on various featured dog-bone specimens to study the fracture behavior of the material from the uniaxial to plane-strain tension. On the numerical side, the evolving non-associated Hill48 (enHill48) plasticity model considering anisotropic hardening and plastic strain ratio evolution is employed to describe the anisotropic plastic deformation. The extended enHill48 model with damage and fracture formulation is further calibrated and validated in the study to describe the ductile fracture behavior of the steel under various stress states. Through a comparison of the results based on the evolving anisotropic model with the isotropic Mises model, it is concluded that even for materials that show only minor initial plastic anisotropy, it could develop a nonnegligible influence on the large plastic deformation and the prediction of both deformation and fracture shows
profound improvement with the evolving anisotropic plasticity model.

Original language	English
Title of host publication	ESAFORM 2021 - 24th International Conference on Material Forming
Publisher	ULiège Library
Number of pages	10
ISBN (Electronic)	978-2-87019-303-7
ISBN (Print)	978-2-87019-302-0
DOIs	https://doi.org/10.25518/esaform21.4322
Publication status	Published - 1 Apr 2021
MoE publication type	A4 Article in a conference publication
Event	International ESAFORM Conference on Material Forming - Virtual, Liége, Belgium Duration: 1 Apr 2021 → 30 Apr 2021 Conference number: 24

Conference

Conference	International ESAFORM Conference on Material Forming
Country/Territory	Belgium
City	Liége
Period	01/04/2021 → 30/04/2021

Keywords

Anisotrophy
Dectile Fracture
Dual-phase Steel
Damage
Evolving Plasticity Model

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title = "Investigation on the ductile fracture of a high-strength dual-phase steel with anisotropic damage mechanics model",

abstract = "In this study, a hybrid experimental and numerical investigation is implemented to characterize the plasticity and ductile fracture behavior of a high-strength dual-phase steel. Uniaxial tensile tests are conducted along the three typical directions of rolled sheet metals for the anisotropic plastic behavior, while the hydraulic bulge test is applied for the flow behavior under equiaxial biaxial tension. Further tensile tests are conducted on various featured dog-bone specimens to study the fracture behavior of the material from the uniaxial to plane-strain tension. On the numerical side, the evolving non-associated Hill48 (enHill48) plasticity model considering anisotropic hardening and plastic strain ratio evolution is employed to describe the anisotropic plastic deformation. The extended enHill48 model with damage and fracture formulation is further calibrated and validated in the study to describe the ductile fracture behavior of the steel under various stress states. Through a comparison of the results based on the evolving anisotropic model with the isotropic Mises model, it is concluded that even for materials that show only minor initial plastic anisotropy, it could develop a nonnegligible influence on the large plastic deformation and the prediction of both deformation and fracture showsprofound improvement with the evolving anisotropic plasticity model.",

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author = "Zinan Li and Wenqi Liu and Fuhui Shen and Sebastian M{\"u}nstermann and Junhe Lian",

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Li, Z , Liu, W , Shen, F, Münstermann, S & Lian, J 2021, Investigation on the ductile fracture of a high-strength dual-phase steel with anisotropic damage mechanics model. in ESAFORM 2021 - 24th International Conference on Material Forming., 4322, ULiège Library, International ESAFORM Conference on Material Forming, Liége, Belgium, 01/04/2021. https://doi.org/10.25518/esaform21.4322

Investigation on the ductile fracture of a high-strength dual-phase steel with anisotropic damage mechanics model. / Li, Zinan ; Liu, Wenqi ; Shen, Fuhui et al.
ESAFORM 2021 - 24th International Conference on Material Forming. ULiège Library, 2021. 4322.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

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AU - Lian, Junhe

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N2 - In this study, a hybrid experimental and numerical investigation is implemented to characterize the plasticity and ductile fracture behavior of a high-strength dual-phase steel. Uniaxial tensile tests are conducted along the three typical directions of rolled sheet metals for the anisotropic plastic behavior, while the hydraulic bulge test is applied for the flow behavior under equiaxial biaxial tension. Further tensile tests are conducted on various featured dog-bone specimens to study the fracture behavior of the material from the uniaxial to plane-strain tension. On the numerical side, the evolving non-associated Hill48 (enHill48) plasticity model considering anisotropic hardening and plastic strain ratio evolution is employed to describe the anisotropic plastic deformation. The extended enHill48 model with damage and fracture formulation is further calibrated and validated in the study to describe the ductile fracture behavior of the steel under various stress states. Through a comparison of the results based on the evolving anisotropic model with the isotropic Mises model, it is concluded that even for materials that show only minor initial plastic anisotropy, it could develop a nonnegligible influence on the large plastic deformation and the prediction of both deformation and fracture showsprofound improvement with the evolving anisotropic plasticity model.

AB - In this study, a hybrid experimental and numerical investigation is implemented to characterize the plasticity and ductile fracture behavior of a high-strength dual-phase steel. Uniaxial tensile tests are conducted along the three typical directions of rolled sheet metals for the anisotropic plastic behavior, while the hydraulic bulge test is applied for the flow behavior under equiaxial biaxial tension. Further tensile tests are conducted on various featured dog-bone specimens to study the fracture behavior of the material from the uniaxial to plane-strain tension. On the numerical side, the evolving non-associated Hill48 (enHill48) plasticity model considering anisotropic hardening and plastic strain ratio evolution is employed to describe the anisotropic plastic deformation. The extended enHill48 model with damage and fracture formulation is further calibrated and validated in the study to describe the ductile fracture behavior of the steel under various stress states. Through a comparison of the results based on the evolving anisotropic model with the isotropic Mises model, it is concluded that even for materials that show only minor initial plastic anisotropy, it could develop a nonnegligible influence on the large plastic deformation and the prediction of both deformation and fracture showsprofound improvement with the evolving anisotropic plasticity model.

KW - Anisotrophy

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Y2 - 1 April 2021 through 30 April 2021

ER -

Investigation on the ductile fracture of a high-strength dual-phase steel with anisotropic damage mechanics model

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