SPRINGBACK SUPPRESSION COUNTERMEASURE METHOD AND ANALYSIS DEVICE FOR PRESS FORMED OBJECT

摘要

This springback suppression countermeasure method for a press formed object is equipped with: an analysis model generation step wherein planar elements and/or volumetric elements are used to generate an analysis model for the object; a stress state setting step wherein a stress state that generates springback is set for each element in the generated analysis model; a rigidity contribution region detection step wherein a shape optimization analysis is performed for the analysis model in which the stress states have been set in the stress state setting step and regions which contribute greatly to rigidity are detected; and a rigidity improvement step wherein a means for improving the rigidity of the object is implemented on the basis of the regions detected in the rigidity contribution region detection step.