Abstract
Robust design of forming processes is gaining attention throughout the
industry. To analyze the robustness of a sheet metal forming process using
Finite Element (FE) simulations, an accurate input in terms of parameter
scatter is required. This paper presents a pragmatic, accurate and economic
approach for measuring and modeling one of the main inputs, i.e. material
properties and its associated scattering.
For the purpose of this research, samples of 41 coils of a forming steel
DX54D+Z (EN 10327:2004) from multiple casts have been collected. Fully
determining the stochastic material behavior to the required accuracy for
modeling in FE simulations would require many mechanical experiments.
Instead, the present work combines mechanical testing and texture analysis
to limit the required effort. Moreover, use is made of the correlations between the material parameters to efficiently model the material property
scatter for use in the numerical robustness analysis. The proposed approach
is validated by the forming of a series of cup products using the collected
material. The observed experimental scatter can be reproduced efficiently
using FE simulations, demonstrating the potential of the modeling approach
and robustness analysis in general.
Original language | English |
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Pages (from-to) | 238-252 |
Journal | Journal of materials processing technology |
Volume | 214 |
Issue number | 2 |
DOIs | |
Publication status | Published - 28 Sept 2014 |
Keywords
- METIS-297962
- IR-87356