Simulation system for springback suppression design by shape change, simulation method for springback suppression design by shape change, and program of simulation system for springback suppression design by shape change

摘要

An object of the present invention is to reduce the operation time and the calculation cost significantly, since it is possible to simultaneously consider the location of the shape change and the influence of the shape change without trial and error or reworking. SOLUTION: A press forming simulation unit 110, a spring back analysis unit 120, a setting unit 130 for setting a position to be subjected to shape change processing and a shape in shape change according to an input, and a processing to perform shape change processing A model creation unit 140 that creates a model of an affected area having a predetermined distance from the outer edge of the area and the processing area, a processing area stress calculation unit 145 that calculates stress in the processing area, stress data of press molding simulation results, and processing The springback analysis unit 120 includes a synthesis unit 150 that synthesizes the stress data of the area stress calculation result and an influence area stress calculation unit 160 that calculates the stress of the influence area. Springback analysis is newly performed based on the data and the stress data of the stress calculation result of the affected area. [Selected figure] Figure 16