| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10673161 | CIRP Annals - Manufacturing Technology | 2012 | 4 Pages |
Abstract
The Forming Limit Curve (FLC) is a conventional failure criterion to estimate sheet metal formability for proportional loading conditions in Finite Element Analysis. Previous studies found that a standard FLC is not suitable for predicting the influence of nonlinear strain paths. This paper introduces a new method for the description of failure behavior in two-step forming operations by using a metamodeling technique. The main objectives of this approach are the cost effectiveness of the required experimental calibration and its practical applicability. The predicted forming limits determined with the proposed method are presented and validated by experimental results.
Keywords
Related Topics
Physical Sciences and Engineering
Engineering
Industrial and Manufacturing Engineering
Authors
Wolfram Volk, Hartmut Hoffmann, Joungsik Suh, Jaekun Kim,