Effects of Damage Evolution on Edge Crack Sensitivity in Dual-Phase Steels
Loading...
Access rights
openAccess
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
Date
2024-10
Major/Subject
Mcode
Degree programme
Language
en
Pages
18
Series
Steel Research International, Volume 95, issue 10
Abstract
The present study aims to thoroughly investigate the edge-cracking phenomenon in high-strength sheets. Hence, the edge crack sensitivity of three dual-phase steels is studied in various combinations of edge manufacturing and forming processes. Finite element simulations are performed to elaborate the study. In this regard, the Yoshida–Uemori kinematic hardening model is employed to describe the plasticity behavior of the materials under multistep processes. A stress-state fracture model is coupled with this plasticity model to illustrate the distinguished local fracture strains of each material. Moreover, the effects of strain rate and the consequent temperature rise on hardening and damage are taken into account, which play significant roles during shear-cutting. The results show that although the shear-cutting processes are applied at very low speed, the strain rate and induced temperature are still high at the cutting area. The hole expansion results show different fracture behaviors for different cases. In brief, cracking is initiated at a location, which shows the highest damage accumulation during edge manufacturing plus the subsequent forming process. Such a complicated situation can only be successfully predicted by using a computer-aided approach along with proper material modeling, like the applied model in this study.Description
Publisher Copyright: © 2024 The Author(s). Steel Research International published by Wiley-VCH GmbH.
Keywords
dual-phase steels, edge crack sensitivity, finite element methods, fracture models, kinematic hardening
Other note
Citation
Habibi, N, Beier, T, Lian, J, Tekkaya, B, Koenemann, M & Muenstermann, S 2024, ' Effects of Damage Evolution on Edge Crack Sensitivity in Dual-Phase Steels ', Steel Research International, vol. 95, no. 10, 2400178 . https://doi.org/10.1002/srin.202400178