The Influence of Forming Effects on The Bending Crush Behavior of Top-Hat Thin–Walled Beams
Abstract: This paper presents
a study on the effects of forming process of a top–hat thin–walled beams to its
bending crush resistance under dynamic bending load. The thin–walled beam was
formed using a one step deep drawing. HyperForm software simulated the forming
process and mapped its effects such as thickness variations and residual
plastic strains in to the crash analysis models.Then the dynamic bending crush
analysis was carried out using LS–DYNA byusing the geometry and materials data
obtained from the forming analysis results. For each material model, the
analyses were carried out for model withand without the forming effects. The
bending crush behavior of the top–hat thin–walled beams were then analyzed to
compare between the simulations with and without forming effects. The results
show that by incorporating the effect of forming process, the bending crush
resistance of the thin–walled beams isincrease by 4.7%. The introduction of
strain rates to the material model increases even further on the bending crush
resistance of the thin–walled beam.
Author: Nguyen Van Nhat Vu,
Sigit P. Santosa, Leonardo Gunawan, Annisa Jusuf
Journal Code: jptmesingg160005
