摘要
A new inverse method by coupling iSIGHT and ABAQUS was proposed to determine the constitutive parameters of Al2O3sf/LY12 composite deforming at elevated temperature. It combined the merits of the finite element simulation and optimization technique. The direct model was simulated with finite element code ABAQUS. The inverse problem associated with the identification of the constitutive parameters was expressed as a least square optimization problem. The direct simulation and the parameters optimization were implemented in iSIGHT integrated environment. The aim was to match the output of the direct simulation with the experiment data. The capability of the proposed inverse method was demonstrated through the identification of constitutive parameters of Al2O3sf/LY12 composite. The proposed new inverse method is also applicable to other parameters identification which is hardly determined through experiments or direct analytical method.
A new inverse method by coupling iSIGHT and ABAQUS was proposed to determine the constitutive parameters of Al2O3sf/LY12 composite deforming at elevated temperature. It combined the merits of the f＇mite element simulation and optimization technique. The direct model was simulated with finite element code ABAQUS. The inverse problem associated with the identification of the constitutive parameters was expressed as a least square optimization problem. The direct simulation and the parameters optimization were implemented in iSIGHT integrated environment. The aim was to match the output of the direct simulation with the experiment data. The capability of the proposed inverse method was demonstrated through the identification of constitutive parameters of Al2O3sf/LY12 composite. The proposed new inverse method is also applicable to other parameters identification which is hardly determined through experiments or direct analytical method.
出处
《中国有色金属学会会刊：英文版》
EI
CSCD
2006年第1期148-152,共5页
Transactions of Nonferrous Metals Society of China
基金
Project(50575185) supported by the National Natural Science Foundation of China
Project(51412010304HK0339) supported by the Founda- tion of National Defense, China
Project(05G53048) supported by the Foundation of Aeronautical Science, China
关键词
逆解法
铝合金
构成参数
复合材料
参数标识
ISIGHT
ABAQUS
Al2O3sf/LY12 composite
constitutive parameters
inverse method
parameter identification
hot deformation
iSIGHT
ABAQUS
