Determination of creep parameters by the indentation creep testing in combination with finite element method

Yongjun Liu; Bin Zhao; Baoxing Xu; Zhufeng Yue

Determination of creep parameters by the indentation creep testing in combination with finite element method

Yongjun Liu, Bin Zhao, Baoxing Xu, Zhufeng Yue

School of Mechanics,Civil Engineering and Architecture

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Indentation creep testing and uniaxial creep testing were carried out using aluminum alloy LY12CZ. The indentation creep testing was simulated by the finite element method. With the indentation creep testing results in conjunction with finite element creep analysis, the material creep parameters (n_mI=n_I=4.894 and c_mI=5.780 × 10^-19 s^-1 MPaⁿ) were derived. It is found that the creep parameters from the uniaxial tensile creep testing (n_m and c_m) and indentation creep testing in combination with finite element method (n_mI and c_mI) can meet each other. The indentation creep testing can been used to determine the creep parameters (n_m and c_m). The most important conclusion is that the indentation creep exponent is equal to the material creep exponent, n_m=n_I.

Original language	English
Pages (from-to)	2114-2118
Number of pages	5
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	36
Issue number	12
State	Published - Dec 2007

Keywords

Creep parameters
Duralumin alloy LY12CZ
Finite element method (FEM)
Indentation creep
Uniaxial tensile creep

Cite this

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title = "Determination of creep parameters by the indentation creep testing in combination with finite element method",

abstract = "Indentation creep testing and uniaxial creep testing were carried out using aluminum alloy LY12CZ. The indentation creep testing was simulated by the finite element method. With the indentation creep testing results in conjunction with finite element creep analysis, the material creep parameters (nmI=nI=4.894 and cmI=5.780 × 10-19 s-1 MPan) were derived. It is found that the creep parameters from the uniaxial tensile creep testing (nm and cm) and indentation creep testing in combination with finite element method (nmI and cmI) can meet each other. The indentation creep testing can been used to determine the creep parameters (nm and cm). The most important conclusion is that the indentation creep exponent is equal to the material creep exponent, nm=nI.",

keywords = "Creep parameters, Duralumin alloy LY12CZ, Finite element method (FEM), Indentation creep, Uniaxial tensile creep",

author = "Yongjun Liu and Bin Zhao and Baoxing Xu and Zhufeng Yue",

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journal = "Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering",

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T1 - Determination of creep parameters by the indentation creep testing in combination with finite element method

AU - Liu, Yongjun

AU - Zhao, Bin

AU - Xu, Baoxing

AU - Yue, Zhufeng

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N2 - Indentation creep testing and uniaxial creep testing were carried out using aluminum alloy LY12CZ. The indentation creep testing was simulated by the finite element method. With the indentation creep testing results in conjunction with finite element creep analysis, the material creep parameters (nmI=nI=4.894 and cmI=5.780 × 10-19 s-1 MPan) were derived. It is found that the creep parameters from the uniaxial tensile creep testing (nm and cm) and indentation creep testing in combination with finite element method (nmI and cmI) can meet each other. The indentation creep testing can been used to determine the creep parameters (nm and cm). The most important conclusion is that the indentation creep exponent is equal to the material creep exponent, nm=nI.

AB - Indentation creep testing and uniaxial creep testing were carried out using aluminum alloy LY12CZ. The indentation creep testing was simulated by the finite element method. With the indentation creep testing results in conjunction with finite element creep analysis, the material creep parameters (nmI=nI=4.894 and cmI=5.780 × 10-19 s-1 MPan) were derived. It is found that the creep parameters from the uniaxial tensile creep testing (nm and cm) and indentation creep testing in combination with finite element method (nmI and cmI) can meet each other. The indentation creep testing can been used to determine the creep parameters (nm and cm). The most important conclusion is that the indentation creep exponent is equal to the material creep exponent, nm=nI.

KW - Creep parameters

KW - Duralumin alloy LY12CZ

KW - Finite element method (FEM)

KW - Indentation creep

KW - Uniaxial tensile creep

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Determination of creep parameters by the indentation creep testing in combination with finite element method

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