MK modelling of sheet formability in the incremental sheet forming process, taking into account through-thickness shear
Source abstract
Abstract
This paper presents experimental measurements of the Through-Thickness Shear (TTS), (also known as out-of-plane shear) that occurs during Single Point Incremental Forming (SPIF) of low carbon steel into cone-shaped geometries. The measurements show the dependence of TTS on the cone wall angle. Also formability predictions are presented, using a Marciniak-Kuczynski (MK) type of forming limit model which can take TTS explicitly into account [1]. It is seen that the presence of TTS in the process delays the onset of localized necking and thus can be a contributing factor to the very high formability during SPIF that is observed.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Metal Forming Simulation Techniques · Metallurgy and Material Forming · Laser and Thermal Forming Techniques
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References (4)
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1. Eyckens P., Van Bael A., Van Houtte P.: Marciniak-Kuczynski type modelling of the effect of through-thickness shear on the forming limits of sheet metal., Int J Plasticity, accepted for publication, 2008.10.1016/j.ijplas.2009.02.002 ↗
2. Eyckens, P., He, S., Van Bael, A., Duflou, J., Van Houtte, P.: Finite Element Based Formability Predictions of Sheets Subjected to the Incremental Forming Process. In: 9th ComPlas Conference on Computational Plasticity, 529–532, 2007.
3. Eyckens, P., Van Bael, A., Van Houtte, P.: An Extended Marciniak-Kuczynski Forming Limit Model to Assess the Influence of Through-Thickness Shear on Formability. In: 7th NumiSheet Conference on Numerical Simulation of 3D Sheet Metal Forming Processes, 193–198, 2008.
4. Jackson, K., Allwood, J.: The Mechanics of Incremental Sheet Forming. J Mat Proc Tech, in Press.