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      Description of full-range strain hardening behavior of steels

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          Abstract

          Mathematical expression describing plastic behavior of steels allows the execution of parametric studies for many purposes. Various formulas have been developed to characterize stress strain curves of steels. However, most of those formulas failed to describe accurately the strain hardening behavior of steels in the full range which shows various distinct stages. For this purpose, a new formula is developed based on the well-known Ramberg–Osgood formula to describe the full range strain hardening behavior of steels. Test results of all the six types of steels show a three-stage strain hardening behavior. The proposed formula can describe such behavior accurately in the full range using a single expression. The parameters of the formula can be obtained directly and easily through linear regression analysis. Excellent agreements with the test data are observed for all the steels tested. Furthermore, other formulas such as Ludwigson formula, Gardner formula, UGent formula are also applied for comparison. Finally, the proposed formula is considered to have wide suitability and high accuracy for all the steels tested.

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          Most cited references 53

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          Physics and phenomenology of strain hardening: the FCC case

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            Strain hardening regimes and microstructural evolution during large strain compression of low stacking fault energy fcc alloys that form deformation twins

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              Plastic instability under plane stress

               H.W. Swift (1952)
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                Author and article information

                Contributors
                litao2314@sina.com
                +86-0571-87953393 , jyzh@zju.edu.cn
                czw@cscbpv.org
                Journal
                Springerplus
                Springerplus
                SpringerPlus
                Springer International Publishing (Cham )
                2193-1801
                11 August 2016
                11 August 2016
                2016
                : 5
                : 1
                Affiliations
                [1 ]Institute of Process Equipment, Zhejiang University, Hangzhou, 310027 Zhejiang People’s Republic of China
                [2 ]Chinese Standardization Committee on Boilers and Pressure Vessels, Beijing, 100029 People’s Republic of China
                [3 ]High-Pressure Process Equipment and Safety Engineering Research Center of Ministry of Education, Zhejiang University, Hangzhou, 310027 Zhejiang People’s Republic of China
                [4 ]The State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou, 310027 Zhejiang People’s Republic of China
                Article
                2998
                10.1186/s40064-016-2998-3
                4980855
                32e67c4c-e3ec-444e-842f-c8f04cc07bf6
                © The Author(s) 2016

                Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License ( http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

                Funding
                Funded by: Special funds for Quality Supervision Research in the Public Interest
                Award ID: 201210242
                Award Recipient :
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                Research
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                © The Author(s) 2016

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                strain hardening behavior, stress strain curve, plastic deformation

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