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A Data-Fusion Method for Uncertainty Quantification of Mechanical Property of Bi-Modulus Materials: An Example of Graphite
Liang Zhang1,*, Zigang He1
1 College of Aerospace Engineering, Chongqing University, Chongqing, 400044, China
* Corresponding Author: Liang Zhang. Email:
The International Conference on Computational & Experimental Engineering and Sciences 2023, 27(2), 1-1. https://doi.org/10.32604/icces.2023.09713
Abstract
The different elastic properties of tension and compression are obvious in many engineering materials,
especially new materials. Materials with this characteristic, such as graphite, ceramics, and composite
materials, are called bi-modulus materials. Their mechanical properties such as Young’s modulus have
randomness in tension and compression due to different porosity, microstructure, etc. To calibrate the
mechanical properties of bi-modulus materials by bridging FEM simulation results and scarce experimental
data, the paper presents a data-fusion computational method. The FEM simulation is implemented based on
Parametric Variational Principle (PVP), while the experimental result is obtained by Digital Image
Correlation (DIC) technology. To deal with scarce experimental data, Maximum Entropy Principle (MEP) is
employed for the uncertainty quantification (UQ) and calibration of material parameters and responses,
which can retain the original probabilistic property of a priori data. The non-parametric p-box is used as a
constraint for data fusion. The method presented in this paper can quantify the mechanical properties of
materials with high uncertainty, which is verified by a typical example of bi-modulus graphite. It is possible
to find applications in the real-time estimation of structural reliability by combining with digital twin
technology in the future.
Keywords
Cite This Article
APA Style
Zhang, L., He, Z. (2023). A data-fusion method for uncertainty quantification of mechanical property of bi-modulus materials: an example of graphite. The International Conference on Computational & Experimental Engineering and Sciences, 27(2), 1-1. https://doi.org/10.32604/icces.2023.09713
Vancouver Style
Zhang L, He Z. A data-fusion method for uncertainty quantification of mechanical property of bi-modulus materials: an example of graphite. Int Conf Comput Exp Eng Sciences . 2023;27(2):1-1 https://doi.org/10.32604/icces.2023.09713
IEEE Style
L. Zhang and Z. He, "A Data-Fusion Method for Uncertainty Quantification of Mechanical Property of Bi-Modulus Materials: An Example of Graphite," Int. Conf. Comput. Exp. Eng. Sciences , vol. 27, no. 2, pp. 1-1. 2023. https://doi.org/10.32604/icces.2023.09713