Open AccessResearch on Inconel 690 material test data analysis method
Author(s) -
Song Chenyang,
MA Jing-xian,
Du Ai-ling,
Qiang Liu,
Xiaowei Zhang,
Ling Zhan
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1043/5/052006
Subject(s) - inconel , materials science , ultimate tensile strength , tensile testing , split hopkinson pressure bar , strain rate , constitutive equation , structural engineering , experimental data , alloy , bar (unit) , test data , composite material , metallurgy , computer science , mathematics , engineering , finite element method , statistics , physics , meteorology , programming language
The quasi-static and dynamic tensile behavior of Inconel 690 alloy are studied by universal material testing machine and split-Hopkinson bar. In this paper, seven batches of nickel-based alloy samples were tested. Through these tests, the tensile stress-strain curve and tensile stress-strain rate curve of the material and the corresponding failure parameters are obtained. The Johnson-Cook (J-C) dynamic constitutive model was used to fit the experimental data by batch and non-batch analysis methods. By comparing the fitting parameters of the two analysis methods, it is possible to obtain the fitting parameters without batches. This analysis method is more suitable for the actual situation.