MULTISTAGE FORMING SIMULATION SYSTEM, AND PROGRAM FOR MULTISTAGE FORMING SIMULATION

摘要

PPROBLEM TO BE SOLVED: To provide a system for simulating plate forming by a finite element method that can simplify and accelerate a simulation and evaluate springback. PSOLUTION: The system for simulating forming results of a plurality of processes comprises an input device for inputting a final design shape and intermediate design shapes, a processing device for various processing, and an output device for outputting processing results. The processing device has an analytical model creation means for dividing the design shape into finite elements to create an analytical model, an element rotation means for rotating each element to parallelism on a predetermined plane, a developed model creation means for projecting each element on the predetermined plane and deforming each element such that nodal points sharing the same nodal point on the analytical model coincide, to create a plane-developed model, an arithmetic means for calculating stresses and the like on each element depending on the deformation, and an evaluation means for evaluating a forming result of each process according to the stresses and the like on each element of the plane-developed model of each design shape. PCOPYRIGHT: (C)2006,JPO&NCIPI