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A new approach for advanced plasticity and fracture modelling

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Version 2 2024-06-03, 17:09
Version 1 2020-02-07, 13:52
conference contribution
posted on 2024-06-03, 17:09 authored by N Park, TB Stoughton, Jeong YoonJeong Yoon
© Published under licence by IOP Publishing Ltd. A solution to the challenge of modelling the general yielding behaviour including fracture initiation is proposed based on non-associated flow rule. A decoupled formulation with employment of a Lagrangian interpolation function is established to develop a general fracture criterion that considers the mutual effect of the material anisotropy, the strain rate, and the temperature on the onset of fracture. An advanced constitutive law is also developed to accurately describe the evolution of the anisotropy/asymmetry-induced distortional yielding behaviour, using neither any interpolation nor optimization techniques for the calibration of the yield surface. The proposed models are successfully applied to various types of metallic materials to validate their noticeable flexibility and applicability in describing the general material behaviour during various forming processes.

History

Volume

651

Pagination

1-9

Location

Enschede, The Netherlands

Start date

2019-06-03

End date

2019-06-07

ISSN

1757-8981

eISSN

1757-899X

Publication classification

E1 Full written paper - refereed

Editor/Contributor(s)

van den Boogaard T, Hazrati J, Langerak N

Title of proceedings

IDDRG 2019 : Proceedings of the International Deep Drawing Research Group 38th International Annual Conference

Event

International Deep Drawing Research Group. Annual Conference (39th 2019 Enschede, Netherlands)

Publisher

IOP Publishing

Place of publication

Bristol, England

Series

IOP Conference Series: Materials Science and Engineering

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