Identification of the plastic deformation characteristics of AL5052-O sheet based on the non-associated flow rule
Metals and Materials International, ISSN: 2005-4149, Vol: 23, Issue: 2, Page: 254-263
2017
- 30Citations
- 20Captures
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Article Description
This study aims to determine the plastic deformation characteristics of aluminum 5052-O based on non-associated flow rule. To achieve this goal, a new strain hardening model named as Kim-Tuan hardening model is proposed to perfectly describe the stress-strain relation of the studied material in terms of the uniaxial tensile test and to predict the material’s post-necking behavior. Additionally, the plastic behaviors of AL5052-O sheet are described by two approaches: the associated flow rule with YLD2000-2d yield function and the non-associated flow rule with Hill's quadratic function (NAFR-Hill48). The parameters of these functions were derived from the material properties that were obtained from uniaxial tensile tests and bulge test. The flow curve based on Kim-Tuan model and plastic behaviors obtained from two above-mentioned approaches were imported into a finite element analysis code to simulate the hydraulic bulge test for this material to confirm the precision of material characteristics achieved before. The simulation results based on the NAFR-Hill48 match well with the experiment results of bulge test while the YLD2000-2d provides highly accurate predictions for anisotropy of this material.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85013488810&origin=inward; http://dx.doi.org/10.1007/s12540-017-6378-5; http://link.springer.com/10.1007/s12540-017-6378-5; http://link.springer.com/content/pdf/10.1007/s12540-017-6378-5.pdf; http://link.springer.com/article/10.1007/s12540-017-6378-5/fulltext.html; https://dx.doi.org/10.1007/s12540-017-6378-5; https://link.springer.com/article/10.1007/s12540-017-6378-5
Springer Nature
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