Influential Factors Affecting Inherent Deformation During Plate Forming by Line Heating (Report 4)-The Effect of Material Properties

摘要

A 3D thermal-elastic-plastic finite element analysis is performed to investigate the influence of temperature-dependent material properties on the prediction of inherent deformation due to line heating when numerical analysis by FEM is used. First, the temperature-dependent material properties are defined. Variation with a different degree was introduced, and the resulting inherent deformation compared. Meanwhile, the other properties and process parameters are kept unchanged. Accordingly, the influence of various material properties on inherent deformation is revealed and discussed. It is found that the temperature-dependent material properties play a key role on predicting inherent deformation. Finally, the conclusions of this numerical study are outlined.