Finite element analysis of incrementally formed parts
by J.I.V. Sena; R.A.F. Valente; J.J. Grácio; F.J.P. Simões; R.J. Alves de Sousa
International Journal of Mechatronics and Manufacturing Systems (IJMMS), Vol. 4, No. 5, 2011

Abstract: Single point incremental forming (SPIF) processes represent a breakpoint from traditional forming processes, and possibly a new era in small batches production, customised parts or rapid prototyping. Given its easy implementation, SPIF is being currently a subject of intensive experimental and numerical research. Consequently, dimensional inaccuracy in formed parts is still a real problem to tackle, demanding a correct prediction of forming forces, springback defects and strain path effects. This work concerns a first step of a detailed numerical study, validated with available experimental results in the literature raised about simulation of SPIF processes. To this end, it is proposed a general simulation framework of SPIF processes using the finite element method with implicit solution schemes, along with innovative solid-shell elements for 3D analysis. Finally, the use of solid-shell elements provides several advantages compared to shell elements, as considering automatically full 3D stress states and constitutive laws, thickness variations, double sided contact and normal stresses.

Online publication date: Sat, 07-Mar-2015

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