A Study on Compressive Anisotropy and Nonassociated Flow Plasticity of the AZ31 Magnesium Alloy in Hot Rolling
Joint Authors
Wang, Guoqiang
Liu, Yi
Qian, Xiaolei
Lou, Yanshan
Li, Xuefei
Hou, Haijing
Source
Mathematical Problems in Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-03-13
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Effect of anisotropy in compression is studied on hot rolling of AZ31 magnesium alloy with a three-dimensional constitutive model based on the quadratic Hill48 yield criterion and nonassociated flow rule (non-AFR).
The constitutive model is characterized by compressive tests of AZ31 billets since plastic deformations of materials are mostly caused by compression during rolling processes.
The characterized plasticity model is implemented into ABAQUS/Explicit as a user-defined material subroutine (VUMAT) based on semi-implicit backward Euler's method.
The subroutine is employed to simulate square-bar rolling processes.
The simulation results are compared with rolled specimens and those predicted by the von Mises and the Hill48 yield function under AFR.
Moreover, strip rolling is also simulated for AZ31 with the Hill48 yield function under non-AFR.
The strip rolling simulation demonstrates that the lateral spread generated by the non-AFR model is in good agreement with experimental data.
These comparisons between simulation and experiments validate that the proposed Hill48 yield function under non-AFR provides satisfactory description of plastic deformation behavior in hot rolling for AZ31 alloys in case that the anisotropic parameters in the Hill48 yield function and the non-associated flow rule are calibrated by the compressive experimental results.
American Psychological Association (APA)
Wang, Guoqiang& Qian, Xiaolei& Li, Xuefei& Hou, Haijing& Liu, Yi& Lou, Yanshan. 2014. A Study on Compressive Anisotropy and Nonassociated Flow Plasticity of the AZ31 Magnesium Alloy in Hot Rolling. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-457842
Modern Language Association (MLA)
Wang, Guoqiang…[et al.]. A Study on Compressive Anisotropy and Nonassociated Flow Plasticity of the AZ31 Magnesium Alloy in Hot Rolling. Mathematical Problems in Engineering No. 2014 (2014), pp.1-9.
https://search.emarefa.net/detail/BIM-457842
American Medical Association (AMA)
Wang, Guoqiang& Qian, Xiaolei& Li, Xuefei& Hou, Haijing& Liu, Yi& Lou, Yanshan. A Study on Compressive Anisotropy and Nonassociated Flow Plasticity of the AZ31 Magnesium Alloy in Hot Rolling. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-457842
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-457842