Constitutive relationship of 7075 aluminum alloy based on modified Zerilli-Armstrong (M - ZA) model

Z. Ma; H. C. Ji; W. C. Pei; S. F. Wang; Y. G. Li

Metalurgija (Jan 2021)

Constitutive relationship of 7075 aluminum alloy based on modified Zerilli-Armstrong (M - ZA) model

Z. Ma,
H. C. Ji,
W. C. Pei,
S. F. Wang,
Y. G. Li

Affiliations

Z. Ma: College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China
H. C. Ji: College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China
W. C. Pei: College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China
S. F. Wang: College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China
Y. G. Li: College of Mechanical Engineering, North China University of Science and Technology, Hebei, Tangshan, China

Journal volume & issue: Vol. 60, no. 3-4
pp. 269 – 272

Abstract

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The Gleeble – 3500 thermal simulation testing machine was used to perform isothermal tensile test on 7075 aluminum alloy at a deformation temperature of 300 – 450 °C and a strain rate of 0,01 – 1 s-1, and the true stress-strain curve of the alloy was obtained. Based on the true stress-strain data, the modified Zerilli-Armstrong (M-ZA) model was used to construct the constitutive model of the alloy, and the fitting accuracy of the model was analyzed.

Published in Metalurgija

ISSN: 0543-5846 (Print); 1334-2576 (Online)
Publisher: Croatian Metallurgical Society
Country of publisher: Croatia
LCC subjects: Technology: Mining engineering. Metallurgy
Website: http://pubweb.carnet.hr/metalurg/journal-metalurgija-2/about-journal

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