MATEC Web Conf.
Volume 80, 2016NUMIFORM 2016: The 12th International Conference on Numerical Methods in Industrial Forming Processes
|Number of page(s)||7|
|Section||MS6: From numerical modeling of forming processes down to in-use properties|
|Published online||24 October 2016|
Multi Scale Models for Flexure Deformation in Sheet Metal Forming
1 SIMTECH, 2 rue AlbertSamain, F-75017 Paris, France
2 Univ. Lille Nord de France, F-59000 Lille, France
3 ENSIAME, Mont Houy, F-59313 Valenciennes, France
a Corresponding author: email@example.com
This paper presents the application of multi scale techniques to the simulation of sheet metal forming using the one-step method. When a blank flows over the die radius, it undergoes a complex cycle of bending and unbending. First, we describe an original model for the prediction of residual plastic deformation and stresses in the blank section. This model, working on a scale about one hundred times smaller than the element size, has been implemented in SIMEX, one-step sheet metal forming simulation code. The utilisation of this multi-scale modeling technique improves greatly the accuracy of the solution. Finally, we discuss the implications of this analysis on the prediction of springback in metal forming.
© The Authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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