Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/106768
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Mechanical Engineering | en_US |
dc.creator | Cai, ZY | en_US |
dc.creator | Meng, B | en_US |
dc.creator | Wan, M | en_US |
dc.creator | Wu, XD | en_US |
dc.creator | Fu, MW | en_US |
dc.date.accessioned | 2024-06-03T02:24:16Z | - |
dc.date.available | 2024-06-03T02:24:16Z | - |
dc.identifier.issn | 0749-6419 | en_US |
dc.identifier.uri | http://hdl.handle.net/10397/106768 | - |
dc.language.iso | en | en_US |
dc.publisher | Pergamon Press | en_US |
dc.rights | © 2020 Elsevier Ltd. All rights reserved. | en_US |
dc.rights | © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. | en_US |
dc.rights | The following publication Cai, Z. Y., Meng, B., Wan, M., Wu, X. D., & Fu, M. W. (2020). A modified yield function for modeling of the evolving yielding behavior and micro-mechanism in biaxial deformation of sheet metals. International Journal of Plasticity, 129, 102707 is available at https://doi.org/10.1016/j.ijplas.2020.102707. | en_US |
dc.subject | A modified yield function | en_US |
dc.subject | Biaxial tensile deformation | en_US |
dc.subject | Evolving yielding behavior | en_US |
dc.subject | Micro-mechanism of yielding behavior | en_US |
dc.subject | Sheet metals | en_US |
dc.title | A modified yield function for modeling of the evolving yielding behavior and micro-mechanism in biaxial deformation of sheet metals | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.volume | 129 | en_US |
dc.identifier.doi | 10.1016/j.ijplas.2020.102707 | en_US |
dcterms.abstract | In-depth understanding of the evolving plastic yielding behaviors and insight into their micro-scaled mechanisms are critical for fully exploiting of the formability of sheet metals, accurately forming of the needed shape and geometries, and precisely tailoring of the needed quality and property of the deformed parts. In this research, the in-plane yielding behaviors of dual-phase steel and aluminum alloy sheets were extensively investigated by biaxial tension experiments with the original and pre-strained specimens. It is found that the profile of the experimental plastic work contours changes with the increase of plastic deformation, no matter what the proportional or complex loading condition is. This indicates that the evolving yield behavior cannot be neglected. Based on the Yld2000-2d yield function, a modified yield function with introducing a variable exponent to represent the evolving yield behavior was proposed and then employed to model the evolving yielding of the given metallic sheets. To investigate the yielding micro-mechanisms, the simulated biaxial tension tests were conducted by using the established representative volume elements (RVEs) with a crystal plasticity model. The simulation results showed that the texture of the given sheet metals has a significant effect on the profile of the yield loci. Moreover, when the hard secondary phase is added into the polycrystalline aggregate, the optimum exponent of yield function for the given RVEs is increased, instead of decrease within a certain range of the plastic strain. The micro-mechanism of the evolving yielding behavior could be attributed to the 'pinning' effect of hard inclusions to the polycrystalline grains, i.e. the hardly-deformable particles strengthening the kinetic constraints to the polycrystalline matrix and further obstructing the rotation and plastic deformation of the neighboring grains. This research thus provides a comprehensive understanding of the effect of microscopic structure (crystal structure, texture and secondary hard phase) on the macroscopic plastic yielding behavior of metallic materials as well as a new high-fidelity modelling technique to describe the evolving yielding behavior phenomenologically, in such a way to support the application of FE simulation in sheet metal forming processes. | en_US |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | International journal of plasticity, June 2020, v. 129, 102707 | en_US |
dcterms.isPartOf | International journal of plasticity | en_US |
dcterms.issued | 2020-06 | - |
dc.identifier.scopus | 2-s2.0-85083420542 | - |
dc.identifier.artn | 102707 | en_US |
dc.description.validate | 202405 bcwh | en_US |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | ME-0252 | - |
dc.description.fundingSource | Others | en_US |
dc.description.fundingText | National Science Foundation of China | en_US |
dc.description.pubStatus | Published | en_US |
dc.identifier.OPUS | 55328027 | - |
dc.description.oaCategory | Green (AAM) | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Cai_Modified_Yield_Function.pdf | Pre-Published version | 9.51 MB | Adobe PDF | View/Open |
Page views
7
Citations as of Jun 30, 2024
Downloads
3
Citations as of Jun 30, 2024
SCOPUSTM
Citations
25
Citations as of Jun 21, 2024
WEB OF SCIENCETM
Citations
29
Citations as of Jun 27, 2024
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.