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Statistical characterization and reconstruction of heterogeneous microstructures using deep neural network
Computer Methods in Applied Mechanics and Engineering, Volume: 373, Start page: 113516
Swansea University Authors:
Shaoqing Cui, Chenfeng Li
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© 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
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DOI (Published version): 10.1016/j.cma.2020.113516
Abstract
Heterogeneous materials, whether natural or artificial, are usually composed of distinct constituents present in complex microstructures with discontinuous, irregular and hierarchical characteristics. For many heterogeneous materials, such as porous media and composites, the microstructural features...
Published in: | Computer Methods in Applied Mechanics and Engineering |
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ISSN: | 0045-7825 |
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Elsevier BV
2021
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URI: | https://cronfa.swan.ac.uk/Record/cronfa55670 |
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2021-12-02T11:17:44.2779703 v2 55670 2020-11-16 Statistical characterization and reconstruction of heterogeneous microstructures using deep neural network 88a9a34dc92416ac83ea8ff485d06ade Shaoqing Cui Shaoqing Cui true false 82fe170d5ae2c840e538a36209e5a3ac 0000-0003-0441-211X Chenfeng Li Chenfeng Li true false 2020-11-16 FGSEN Heterogeneous materials, whether natural or artificial, are usually composed of distinct constituents present in complex microstructures with discontinuous, irregular and hierarchical characteristics. For many heterogeneous materials, such as porous media and composites, the microstructural features are of fundamental importance for their macroscopic properties. This paper presents a novel method to statistically characterize and reconstruct random microstructures through a deep neural network (DNN) model, which can be used to study the microstructure–property relationships. In our method, the digital microstructure image is assumed to be a stationary Markov random field (MRF), and local patterns covering the basic morphological features are collected to train a DNN model, after which statistically equivalent samples can be generated through a DNN-guided reconstruction procedure. Furthermore, to overcome the short-distance limitation associated with the MRF assumption, a multi-level approach is developed to preserve the long-distance morphological features of heterogeneous microstructures. A large number of tests have been conducted to compare the reconstructed and target microstructures in both morphological characteristics and physical properties, and good agreements are observed in all test cases. The proposed method is efficient, accurate, versatile, and especially beneficial to the statistical reconstruction of 2D/3D microstructures with long-distance correlations. Journal Article Computer Methods in Applied Mechanics and Engineering 373 113516 Elsevier BV 0045-7825 Heterogeneous material, Random microstructure, Characterization and reconstruction, Statistical equivalence, Physical property 1 1 2021 2021-01-01 10.1016/j.cma.2020.113516 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2021-12-02T11:17:44.2779703 2020-11-16T15:09:20.0391931 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering Jinlong Fu 1 Shaoqing Cui 2 Song Cen 3 Chenfeng Li 0000-0003-0441-211X 4 55670__18678__b5c2e882e0cb411da11c8290f3137a4c.pdf 55670.pdf 2020-11-17T10:14:03.3244037 Output 42967312 application/pdf Accepted Manuscript true 2021-11-06T00:00:00.0000000 © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license true eng http://creativecommons.org/licenses/by-nc-nd/4.0/ |
title |
Statistical characterization and reconstruction of heterogeneous microstructures using deep neural network |
spellingShingle |
Statistical characterization and reconstruction of heterogeneous microstructures using deep neural network Shaoqing Cui Chenfeng Li |
title_short |
Statistical characterization and reconstruction of heterogeneous microstructures using deep neural network |
title_full |
Statistical characterization and reconstruction of heterogeneous microstructures using deep neural network |
title_fullStr |
Statistical characterization and reconstruction of heterogeneous microstructures using deep neural network |
title_full_unstemmed |
Statistical characterization and reconstruction of heterogeneous microstructures using deep neural network |
title_sort |
Statistical characterization and reconstruction of heterogeneous microstructures using deep neural network |
author_id_str_mv |
88a9a34dc92416ac83ea8ff485d06ade 82fe170d5ae2c840e538a36209e5a3ac |
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88a9a34dc92416ac83ea8ff485d06ade_***_Shaoqing Cui 82fe170d5ae2c840e538a36209e5a3ac_***_Chenfeng Li |
author |
Shaoqing Cui Chenfeng Li |
author2 |
Jinlong Fu Shaoqing Cui Song Cen Chenfeng Li |
format |
Journal article |
container_title |
Computer Methods in Applied Mechanics and Engineering |
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373 |
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113516 |
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2021 |
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Swansea University |
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0045-7825 |
doi_str_mv |
10.1016/j.cma.2020.113516 |
publisher |
Elsevier BV |
college_str |
Faculty of Science and Engineering |
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School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering |
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description |
Heterogeneous materials, whether natural or artificial, are usually composed of distinct constituents present in complex microstructures with discontinuous, irregular and hierarchical characteristics. For many heterogeneous materials, such as porous media and composites, the microstructural features are of fundamental importance for their macroscopic properties. This paper presents a novel method to statistically characterize and reconstruct random microstructures through a deep neural network (DNN) model, which can be used to study the microstructure–property relationships. In our method, the digital microstructure image is assumed to be a stationary Markov random field (MRF), and local patterns covering the basic morphological features are collected to train a DNN model, after which statistically equivalent samples can be generated through a DNN-guided reconstruction procedure. Furthermore, to overcome the short-distance limitation associated with the MRF assumption, a multi-level approach is developed to preserve the long-distance morphological features of heterogeneous microstructures. A large number of tests have been conducted to compare the reconstructed and target microstructures in both morphological characteristics and physical properties, and good agreements are observed in all test cases. The proposed method is efficient, accurate, versatile, and especially beneficial to the statistical reconstruction of 2D/3D microstructures with long-distance correlations. |
published_date |
2021-01-01T04:10:04Z |
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1763753700042473472 |
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11.021648 |