Applying Research on Creep Constitutive Model of LC4 Aluminium Alloy Based on BC-RBFNN

Author

Yu, Min ; Peng, Xianghua ; Luo, Yingshe ; Yin, Shuiping

Author_Institution

Inst. of Rheological Mech. & Mater. Eng., Central South Univ. of Forestry & Technol., Changsha, China

fYear

2010

fDate

29-31 Oct. 2010

Firstpage

1

Lastpage

4

Abstract

Creep is an extremely harmful phenomenon which can not be neglected at high temperature. As metal is increasingly used in high temperature structure, investigation on its creep at high temperature has actual significance. In this paper, the creep constitutive relationship of LC4 aluminum alloy under constant stress has been investigated by using creep testing data of LC4 aluminium alloy obtained under the same stress level and different temperature as knowledge base, and combining the characteristics of rheological forming of materials and Based on Clustering Radial Basis Function Neural Network (BC-RBFNN). A creep model based on BC-RBFNN has been obtained and compared, which validates that this model has higher precision and generalizing ability.

Keywords

aluminium alloys; aluminium manufacture; creep; creep testing; internal stresses; mechanical engineering computing; radial basis function networks; AlJkJk; LC4 aluminium alloy; clustering radial basis function neural network; creep constitutive model; creep testing; rheological forming; stress level; Creep; Data models; Mathematical model; Metals; Stress; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia Technology (ICMT), 2010 International Conference on

Conference_Location

Ningbo

Print_ISBN

978-1-4244-7871-2

Type

conf

DOI

10.1109/ICMULT.2010.5629855

Filename

5629855