A validation approach is proposed to ensure that the computational models corresponding to each scale level in a hierarchical multiscale modeling process can produce accurate simulations in the material characterizations at multiple levels. In the validation approach, the stochastic upscaling method is utilized for the homogenization of the geometry and material properties of material structure at each scale level of interest. The experimental data is utilized for the validation of the predictions made by the multiscale models with homogenized properties at each scale level. For the quantitative assessment of the model’s prediction accuracy, a validation metric that integrates the u-pooling method with the Kolmogorov-Smirnov test will be presented. Additively manufactured cellular structures are used as application examples to demonstrate the efficacy of the proposed multiscale validation approach. The results from the examples show that the proposed method effectively captures the predictive capability of the models with an unbiased decision criterion based on the test statistic at multiple scales.
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ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
August 21–24, 2016
Charlotte, North Carolina, USA
Conference Sponsors:
- Design Engineering Division
- Computers and Information in Engineering Division
ISBN:
978-0-7918-5011-4
PROCEEDINGS PAPER
A Validation Approach for the Multiscale Modeling of Additively Manufactured Lattice Structures
Recep M. Gorguluarslan,
Recep M. Gorguluarslan
Georgia Institute of Technology, Atlanta, GA
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Seung-Kyum Choi
Seung-Kyum Choi
Georgia Institute of Technology, Atlanta, GA
Search for other works by this author on:
Recep M. Gorguluarslan
Georgia Institute of Technology, Atlanta, GA
Seung-Kyum Choi
Georgia Institute of Technology, Atlanta, GA
Paper No:
DETC2016-60169, V02BT03A055; 11 pages
Published Online:
December 5, 2016
Citation
Gorguluarslan, RM, & Choi, S. "A Validation Approach for the Multiscale Modeling of Additively Manufactured Lattice Structures." Proceedings of the ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 2B: 42nd Design Automation Conference. Charlotte, North Carolina, USA. August 21–24, 2016. V02BT03A055. ASME. https://doi.org/10.1115/DETC2016-60169
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