An evolving non-associated Hill48 plasticity model accounting for anisotropic hardening and r-value evolution and its application to forming limit prediction

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An evolving non-associated Hill48 plasticity model accounting for anisotropic hardening and r-value evolution and its application to forming limit prediction. / Lian, Junhe; Shen, Fuhui; Jia, Xiaoxu; Ahn, Deok Chan; Chae, Dong Chul; Münstermann, Sebastian; Bleck, Wolfgang.

julkaisussa: International Journal of Solids and Structures, Vuosikerta 151, 15.10.2018, s. 20-44.

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

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Lian, Junhe ; Shen, Fuhui ; Jia, Xiaoxu ; Ahn, Deok Chan ; Chae, Dong Chul ; Münstermann, Sebastian ; Bleck, Wolfgang. / An evolving non-associated Hill48 plasticity model accounting for anisotropic hardening and r-value evolution and its application to forming limit prediction. Julkaisussa: International Journal of Solids and Structures. 2018 ; Vuosikerta 151. Sivut 20-44.

Bibtex - Lataa

@article{5733645da0444313903ca962a1b1ec7a,
title = "An evolving non-associated Hill48 plasticity model accounting for anisotropic hardening and r-value evolution and its application to forming limit prediction",
abstract = "Experimental and numerical investigations on the characterisation and prediction of cold formability of a ferritic steel sheet were performed in this study. Tensile tests and Nakajima tests were conducted for the plasticity characterisation and the forming limit diagram determination, respectively. For the plasticity behaviour description, an evolving non-associated Hill48 anisotropic plasticity model was formulated to accurately characterise the anisotropy evolution under monotonic loading, including anisotropic hardening as well as the r-value evolution. The detailed model parameter calibration procedure was also demonstrated. Eventually the model was applied to the forming limits prediction in conjunction with the modified maximum force criterion. A systematic and detailed study was performed addressing the impacts of the evolving and non-associated characteristics of the model formulation on the forming limits prediction by comparing the proposed model with the classical ones. Both the plasticity model and its application to the formability prediction were validated by the experimental results.",
keywords = "Anisotropy, Cold formability, Ferritic stainless steel, Forming limit diagram, Localisation, Modified maximum force criterion (MMFC)",
author = "Junhe Lian and Fuhui Shen and Xiaoxu Jia and Ahn, {Deok Chan} and Chae, {Dong Chul} and Sebastian M{\"u}nstermann and Wolfgang Bleck",
year = "2018",
month = "10",
day = "15",
doi = "10.1016/j.ijsolstr.2017.04.007",
language = "English",
volume = "151",
pages = "20--44",
journal = "International Journal of Solids and Structures",
issn = "0020-7683",

}

RIS - Lataa

TY - JOUR

T1 - An evolving non-associated Hill48 plasticity model accounting for anisotropic hardening and r-value evolution and its application to forming limit prediction

AU - Lian, Junhe

AU - Shen, Fuhui

AU - Jia, Xiaoxu

AU - Ahn, Deok Chan

AU - Chae, Dong Chul

AU - Münstermann, Sebastian

AU - Bleck, Wolfgang

PY - 2018/10/15

Y1 - 2018/10/15

N2 - Experimental and numerical investigations on the characterisation and prediction of cold formability of a ferritic steel sheet were performed in this study. Tensile tests and Nakajima tests were conducted for the plasticity characterisation and the forming limit diagram determination, respectively. For the plasticity behaviour description, an evolving non-associated Hill48 anisotropic plasticity model was formulated to accurately characterise the anisotropy evolution under monotonic loading, including anisotropic hardening as well as the r-value evolution. The detailed model parameter calibration procedure was also demonstrated. Eventually the model was applied to the forming limits prediction in conjunction with the modified maximum force criterion. A systematic and detailed study was performed addressing the impacts of the evolving and non-associated characteristics of the model formulation on the forming limits prediction by comparing the proposed model with the classical ones. Both the plasticity model and its application to the formability prediction were validated by the experimental results.

AB - Experimental and numerical investigations on the characterisation and prediction of cold formability of a ferritic steel sheet were performed in this study. Tensile tests and Nakajima tests were conducted for the plasticity characterisation and the forming limit diagram determination, respectively. For the plasticity behaviour description, an evolving non-associated Hill48 anisotropic plasticity model was formulated to accurately characterise the anisotropy evolution under monotonic loading, including anisotropic hardening as well as the r-value evolution. The detailed model parameter calibration procedure was also demonstrated. Eventually the model was applied to the forming limits prediction in conjunction with the modified maximum force criterion. A systematic and detailed study was performed addressing the impacts of the evolving and non-associated characteristics of the model formulation on the forming limits prediction by comparing the proposed model with the classical ones. Both the plasticity model and its application to the formability prediction were validated by the experimental results.

KW - Anisotropy

KW - Cold formability

KW - Ferritic stainless steel

KW - Forming limit diagram

KW - Localisation

KW - Modified maximum force criterion (MMFC)

UR - http://www.scopus.com/inward/record.url?scp=85035114295&partnerID=8YFLogxK

U2 - 10.1016/j.ijsolstr.2017.04.007

DO - 10.1016/j.ijsolstr.2017.04.007

M3 - Article

VL - 151

SP - 20

EP - 44

JO - International Journal of Solids and Structures

JF - International Journal of Solids and Structures

SN - 0020-7683

ER -

ID: 28343401