Multi-Scale FE/Damage Percolation Modeling of Ductile Damage Evolution in Aluminum Sheet Forming 2004-01-0742
A so-called damage percolation model is coupled with Gurson-based finite element (FE) approach in order to accommodate the high strain gradients and localized ductile damage. In doing so, void coalescence and final failure are suppressed in Gurson-based FE modeling while a measured second phase particle field is mapped onto the most damaged mesh area so that percolation modeling can be performed to capture ductile fracture in real sheet forming operations. It is revealed that void nucleation within particle clusters dominates ductile fracture in aluminum alloy sheet forming. Coalescence among several particle clusters triggered final failure of materials. A stretch flange forming is simulated with the coupled modeling.
Citation: Chen, Z., Worswick, M., Pilkey, K., and Lloyd, D., "Multi-Scale FE/Damage Percolation Modeling of Ductile Damage Evolution in Aluminum Sheet Forming," SAE Technical Paper 2004-01-0742, 2004, https://doi.org/10.4271/2004-01-0742. Download Citation
Author(s):
Zengtao Chen, Michael Worswick, Keith Pilkey, David Lloyd
Affiliated:
University of Waterloo, Queen's University, ALCAN International Limited
Pages: 11
Event:
SAE 2004 World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Materials Innovation and Advances in Coating Technology-SP-1851
Related Topics:
Aluminum alloys
Forming
Particulate matter (PM)
Simulation and modeling
Aluminum
Technical review
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »
