Analysis of Springback Behaviour in Micro Flexible Rolling of Crystalline Materials
This paper presents a constitutive modelling of the polycrystalline thin metal strip under a state of combined loading in microflexible rolling. The concept of grained inhomogeneity is incorporated into the classic Chaboche hardening model that accounts for the Bauschinger effect, in order to provid...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/5287945 |
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| author | Feijun Qu Zhengyi Jiang Xiaogang Wang Cunlong Zhou |
| author_facet | Feijun Qu Zhengyi Jiang Xiaogang Wang Cunlong Zhou |
| author_sort | Feijun Qu |
| collection | DOAJ |
| description | This paper presents a constitutive modelling of the polycrystalline thin metal strip under a state of combined loading in microflexible rolling. The concept of grained inhomogeneity is incorporated into the classic Chaboche hardening model that accounts for the Bauschinger effect, in order to provide more precise description and analysis of the springback mechanism in the particular forming operation. The model is first implemented in the finite element program ABAQUS to numerically predict the stress-strain relationship of 304 stainless steel specimens over a range of average grain sizes. After validation of the developed model by comparison of predicted curves and actual stress-strain data points, it is further applied to predict the thickness directional springback in microflexible rolling of 304 stainless steel strips with initial thickness of 250 µm and reduction changing from 5 to 10%. The model predictions show a reasonable agreement with the experimental measurements and have proven to be more accurate than those obtained from the conventional multilinear isotropic hardening model in combination with the Voronoi tessellation technique. In addition, the variation of thickness directional springback along with the scatter effect is compared and analysed in regard to the average grain size utilising both qualitative and quantitative approaches in respect of distinct types of data at different reductions. |
| format | Article |
| id | doaj-art-0773f43946a1476cbee5429da45e78fd |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-0773f43946a1476cbee5429da45e78fd2025-02-03T07:25:46ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422018-01-01201810.1155/2018/52879455287945Analysis of Springback Behaviour in Micro Flexible Rolling of Crystalline MaterialsFeijun Qu0Zhengyi Jiang1Xiaogang Wang2Cunlong Zhou3School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, Northfields Avenue, Wollongong 2522, AustraliaSchool of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, Northfields Avenue, Wollongong 2522, AustraliaShanxi Province Metallurgical Equipment Design Theory and Technology Key Laboratory (Provincial Department to Build National Key Laboratory Training Base), Taiyuan University of Science and Technology, Taiyuan 030024, ChinaShanxi Province Metallurgical Equipment Design Theory and Technology Key Laboratory (Provincial Department to Build National Key Laboratory Training Base), Taiyuan University of Science and Technology, Taiyuan 030024, ChinaThis paper presents a constitutive modelling of the polycrystalline thin metal strip under a state of combined loading in microflexible rolling. The concept of grained inhomogeneity is incorporated into the classic Chaboche hardening model that accounts for the Bauschinger effect, in order to provide more precise description and analysis of the springback mechanism in the particular forming operation. The model is first implemented in the finite element program ABAQUS to numerically predict the stress-strain relationship of 304 stainless steel specimens over a range of average grain sizes. After validation of the developed model by comparison of predicted curves and actual stress-strain data points, it is further applied to predict the thickness directional springback in microflexible rolling of 304 stainless steel strips with initial thickness of 250 µm and reduction changing from 5 to 10%. The model predictions show a reasonable agreement with the experimental measurements and have proven to be more accurate than those obtained from the conventional multilinear isotropic hardening model in combination with the Voronoi tessellation technique. In addition, the variation of thickness directional springback along with the scatter effect is compared and analysed in regard to the average grain size utilising both qualitative and quantitative approaches in respect of distinct types of data at different reductions.http://dx.doi.org/10.1155/2018/5287945 |
| spellingShingle | Feijun Qu Zhengyi Jiang Xiaogang Wang Cunlong Zhou Analysis of Springback Behaviour in Micro Flexible Rolling of Crystalline Materials Advances in Materials Science and Engineering |
| title | Analysis of Springback Behaviour in Micro Flexible Rolling of Crystalline Materials |
| title_full | Analysis of Springback Behaviour in Micro Flexible Rolling of Crystalline Materials |
| title_fullStr | Analysis of Springback Behaviour in Micro Flexible Rolling of Crystalline Materials |
| title_full_unstemmed | Analysis of Springback Behaviour in Micro Flexible Rolling of Crystalline Materials |
| title_short | Analysis of Springback Behaviour in Micro Flexible Rolling of Crystalline Materials |
| title_sort | analysis of springback behaviour in micro flexible rolling of crystalline materials |
| url | http://dx.doi.org/10.1155/2018/5287945 |
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