Optimized constitutive equation of material property based on inverse modeling for aluminum alloy hydroforming simulation

来源期刊：中国有色金属学报(英文版)2006年第6期

论文作者：郎利辉 李涛 周贤宾 B. E. KRISTENSEN J. DANCKERT K. B. NIELSEN

文章页码：1379 - 1385

Key words：hydromechanical deep drawing; inverse modeling; aluminum alloy; simulation

Abstract: By using aluminum alloys, the properties of the material in sheet hydroforming were obtained based on the identification of parameters for constitutive models by inverse modeling in which the friction coefficients were also considered in 2D and 3D simulations. With consideration of identified simulation parameters by inverse modeling, some key process parameters including tool dimensions and pre-bulging on the forming processes in sheet hydroforming were investigated and optimized. Based on the optimized parameters, the sheet hydroforming process can be analyzed more accurately to improve the robust design. It proves that the results from simulation based on the identified parameters are in good agreement with those from experiments.

基金信息：the Hydromechanical Deep Drawing without a Draw Die
the National Natural Science Foundation of China