Original scientific paper

High temperature constitutive model of 6005A aluminum alloy

R. Yao ; College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China
H. C. Ji orcid.org/0000-0002-1592-6362 ; College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China
J. F. Jin ; CRRC TANGSHAN CO., LTD., Hebei Tangshan, China
X. Y. Shao ; College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China
H. Y. Long ; College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China

Abstract

Use Gleeble-3800 thermal simulation test machine to conduct thermal tensile test on 6005A aluminum alloy at 623~723 K and 0,01~1 s-1 strain rate. Using the obtained true stress-strain curve, the modified Zerilli-Armstrong (m- Z-A) model considering strain compensation was used to construct the constitutive model of the alloy. The results show that the correlation coefficient and average absolute error of the m-Z-A model are 0,97311 and 4,1779 %, respectively. The experimental data is in good agreement with the predicted curve obtained by calculating the model, which verifies the feasibility of the model.

Keywords

aluminum alloy 6005A; constitutive model; tensile test; flow stress; Zerilli-Armstrong (Z-A) model

Hrčak ID:

256016

URI

https://hrcak.srce.hr/256016

Publication date:

1.7.2021.

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