|About this Abstract
||NUMISHEET 2021: The 12th International Conference on Numerical Simulation of 3D Sheet Metal Forming Processes
||Efficient Numerical Modelling of Stringer Sheet Forming
||Simon Biffar, Stefan Köhler, Peter Groche
|On-Site Speaker (Planned)
Stringer sheet forming is a promising process chain for the production of lightweight stiffened flat components that is currently being transferred to industrial applications. In previous research, numerical simulations of this process have been executed mostly with solid continuum elements, while simulations of similar processes (e.g. deep drawing or stretch forming) carried out in an industrial context generally employ shell elements. This article investigates two different approaches for modelling the forming of stringer sheet parts with solid tools using conventional and continuum shell elements. Firstly, four elementary load cases are studied to gain an understanding of their numerical behaviour. This includes convex and concave bending as well as tensile and compressive loads. Secondly, a real stringer sheet forming process is simulated. The numerically predicted stiffness of the parts is compared with experimental results. It is found that continuum shell elements yield equivalent results to solid continuum elements, while modelling the part with conventional shell elements is unfavourable.
||Definite: At-meeting proceedings