PTA_Accepted_Zhou Roy VS LUPIN.pdf (1.17 MB)
Modelling strain localization in Ti-6Al-4V at high loading rate: a phenomenological approach
journal contribution
posted on 2019-06-18, 07:47 authored by Rongxin Zhou, Ka-Ho (Xavier) Pang, Anuj Bisht, Anish RoyAnish Roy, Satyam Suwas, Vadim SilberschmidtVadim SilberschmidtA phenomenological approach based on a combination of a damage mechanism and a crystal plasticity model is proposed to model a process of stain localization in Ti-6AI-4V at a high strain rate of 103 s-1. The proposed model is first calibrated employing a 3D representative
volume element model. The calibrated parameters are then employed to investigate the process
of onset of strain localization in the studied material. A suitable mesh size is chosen for the
proposed model by implementing a mesh-sensitivity study. The influence of boundary conditions on the initiation of the strain localization is also studied. A variation of crystallographic orientation in the studied material after the deformation process is characterized, based on results for different boundary conditions. The study reveals that the boundary conditions significantly influence the formation of shear bands as well as the variation of crystallographic orientation in the studied material. Results also indicate that the onset of strain localization can affect considerably the material’s behaviour.
Funding
Engineering and Physical Sciences Research Council (UK) through grant EP/P027555/1, project H2 Manufacturing.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering SciencesVolume
378Issue
2162Citation
ZHOU, R. ... et al, 2019. Modelling strain localization in Ti-6Al-4V at high loading rate: A phenomenological approach. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 378 (2162), 20190105.Publisher
Royal Society © The authorsVersion
- AM (Accepted Manuscript)
Publisher statement
This paper was accepted for publication in the journal Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences and the definitive published version is available at https://doi.org/10.1098/rsta.2019.0105.Acceptance date
2019-06-10Publication date
2019-11-25Copyright date
2019ISSN
1364-503XeISSN
1471-2962Publisher version
Language
- en