The Sandia Fracture Challenge: blind round robin predictions of ductile tearing
| Autor: | Krishnaswa Ravi-Chandar, Zhong Zhou, H. E. Fang, Dong Qian, J. Cruce, Marcus Rüter, M. Miraglia, Meng Luo, Amy Kathleen Kaczmarowski, Ken Nahshon, Yong Gan, Kristin Dion, Liang Xue, Devin T. O'Connor, Ali Ghahremaninezhad, Sheng Wei Chi, Jifeng Zhao, Pengfei Yang, Paul A. Wawrzynek, Zhen Chen, Jim Lua, Tingting Zhang, Erin Karasz, R. DeFrese, Steffen Brinckmann, Erdogan Madenci, Sharlotte Kramer, E. Yreux, Bahattin Kilic, Michael K. Neilsen, Anthony R. Ingraffea, Jiun-Shyan Chen, Andrew J. Gross, L. Quinkert, P. Liu, Theresa Elena Cordova, A. R. Cerrone, Brad L. Boyce, John M Emery, Jacob D. Hochhalter, Khalil I. Elkhodary, Shih-Po Lin, E. Fang, B.J. Carter, E. T. Moyer, M G Veilleux, S. Tang, Sagar Bhamare, Keunhwan Pack, Tomasz Wierzbicki, Xiong Zhang |
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| Přispěvatelé: | Massachusetts Institute of Technology. Department of Mechanical Engineering, Pack, Keun Hwan, Luo, Meng, Wierzbicki, Tomasz |
| Rok vydání: | 2014 |
| Předmět: |
Ductile tearing
Engineering Research groups business.industry Computational Mechanics Mechanics of Materials Modelling and Simulation Modeling and Simulation Benchmark (surveying) Computational mechanics Tearing Crack initiation Fracture (geology) Forensic engineering Naval Surface Warfare Center business |
| Zdroj: | Springer Netherlands |
| ISSN: | 1573-2673 0376-9429 |
| Popis: | Existing and emerging methods in computational mechanics are rarely validated against problems with an unknown outcome. For this reason, Sandia National Laboratories, in partnership with US National Science Foundation and Naval Surface Warfare Center Carderock Division, launched a computational challenge in mid-summer, 2012. Researchers and engineers were invited to predict crack initiation and propagation in a simple but novel geometry fabricated from a common off-the-shelf commercial engineering alloy. The goal of this international Sandia Fracture Challenge was to benchmark the capabilities for the prediction of deformation and damage evolution associated with ductile tearing in structural metals, including physics models, computational methods, and numerical implementations currently available in the computational fracture community. Thirteen teams participated, reporting blind predictions for the outcome of the Challenge. The simulations and experiments were performed independently and kept confidential. The methods for fracture prediction taken by the thirteen teams ranged from very simple engineering calculations to complicated multiscale simulations. The wide variation in modeling results showed a striking lack of consistency across research groups in addressing problems of ductile fracture. While some methods were more successful than others, it is clear that the problem of ductile fracture prediction continues to be challenging. Specific areas of deficiency have been identified through this effort. Also, the effort has underscored the need for additional blind prediction-based assessments. |
| Databáze: | OpenAIRE |
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