Determination of 2A16 Constitutive Model

Jiang Hua Deng; Chao Tang; Yan Ran Zhan; Xing Ying Jiang

doi:10.4028/www.scientific.net/AMR.631-632.412

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 631-632Determination of 2A16 Constitutive Model

Determination of 2A16 Constitutive Model

Abstract:

The stress-strain curves of 2A16 under different strain rate range (10-3s-1-103s-1) and different temperature range (293K-673K) were obtained through the quasi-static compression test and SHPB test by experimental method. The parameters were determined based on Johnson-Cook model and the strain rate hardening term in them was modified. The results show that 2A16 is a kind of strain rate and sensitive temperature materials. The flow stress increases with strain rate increasing, while that decreases with temperature increasing. The deviation is large between the unamended Johnson-Cook constitutive model and test data, while the modified constitutive model is a good agreement with experimental results. And the study is a preparation for the numerical simulation of 2A16 rivet electromagnetic riveting.

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Periodical:

Advanced Materials Research (Volumes 631-632)

Pages:

412-416

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.631-632.412

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Online since:

January 2013

Authors:

Jiang Hua Deng, Chao Tang, Yan Ran Zhan, Xing Ying Jiang

Keywords:

Constitutive Model, Electromagnetic Riveting, SHPB, Strain Rate, Temperature

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