In order to emerge the surface fracture of auto body panel, four kinds of experimental dies containing class A surface feature of auto body outer panel was designed. The fracture phenomenon was observed during the stamping experiment. At the same time, numerical simulation based on an independently developed commercial CAE software KMAS/UFT of sheet metal forming was carried out. Comparison between experimental and simulated results based on LS-DYNA3D was made which showed good consistence. And then a universal formability theory called UFT was introduced to optimize the adjustment amount of metal flow and the stamping dies for fracture. Some suggestions were given by investigating the adjustment amount and modification of the stamping die.
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王金武,胡平,付争春,许言午.汽车覆盖件破裂试验及基于广义成形技术仿[J].农业机械学报,2009,40(11):227-231. of Auto Panel Surface Fracture and Simulation Base on Universal Formability Technology[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(11):227-231.