期刊
MECHANICS RESEARCH COMMUNICATIONS
卷 38, 期 3, 页码 192-197出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.mechrescom.2011.02.015
关键词
Al-Cu-Mg-Ag alloys; Constitutive equations; Artificial neural network; Hot compression deformation; Flow stress
类别
The behavior of the flow stress of Al-Cu-Mg-Ag heat-resistant aluminum alloys during hot compression deformation was studied by thermal simulation test. The temperature and the strain rate during hot compression were 340-500 degrees C, 0.001 s(-1) to 10 s(-1), respectively. Constitutive equations and an artificial neural network (ANN) model were developed for the analysis and simulation of the flow behavior of the Al-Cu-Mg-Ag alloys. The inputs of the model are temperature, strain rate and strain. The output of the model is the flow stress. Comparison between constitutive equations and ANN results shows that ANN model has a better prediction power than the constitutive equations. (C) 2011 Elsevier Ltd. All rights reserved.
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