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Structural Damage Identification Using the Optimal Achievable Displacement Variation

To ensure the safe use of structures, it is essential to develop efficient damage identification techniques. In this paper, a brand-new approach to identifying structural deterioration based on static displacement is proposed. First, the relationship between the displacement variation and the damage...

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Detalles Bibliográficos
Autores principales: Peng, Xi, Tian, Cunkang, Yang, Qiuwei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9737151/
https://www.ncbi.nlm.nih.gov/pubmed/36499935
http://dx.doi.org/10.3390/ma15238440
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author Peng, Xi
Tian, Cunkang
Yang, Qiuwei
author_facet Peng, Xi
Tian, Cunkang
Yang, Qiuwei
author_sort Peng, Xi
collection PubMed
description To ensure the safe use of structures, it is essential to develop efficient damage identification techniques. In this paper, a brand-new approach to identifying structural deterioration based on static displacement is proposed. First, the relationship between the displacement variation and the damaged element is derived from the static response equations before and after damage. Subsequently, the optimal achievable displacement variation is defined to determine the damage location in the structure. A progressive elimination strategy is suggested to identify the real damaged parts and weed out the pseudo-damaged elements by measuring the distance between the measured and the best possible displacement variation. After determining the damage location, the corresponding damage extent can be calculated by a system of linear equations. The proposed approach has been tested on a beam structure and truss structure using simulated and experimental data. Compared with the existing static sensitivity method, the suggested method does not result in misjudgment and has higher identification accuracy. It has been demonstrated that the suggested approach is effective at locating and assessing the extent of structural damage.
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spelling pubmed-97371512022-12-11 Structural Damage Identification Using the Optimal Achievable Displacement Variation Peng, Xi Tian, Cunkang Yang, Qiuwei Materials (Basel) Article To ensure the safe use of structures, it is essential to develop efficient damage identification techniques. In this paper, a brand-new approach to identifying structural deterioration based on static displacement is proposed. First, the relationship between the displacement variation and the damaged element is derived from the static response equations before and after damage. Subsequently, the optimal achievable displacement variation is defined to determine the damage location in the structure. A progressive elimination strategy is suggested to identify the real damaged parts and weed out the pseudo-damaged elements by measuring the distance between the measured and the best possible displacement variation. After determining the damage location, the corresponding damage extent can be calculated by a system of linear equations. The proposed approach has been tested on a beam structure and truss structure using simulated and experimental data. Compared with the existing static sensitivity method, the suggested method does not result in misjudgment and has higher identification accuracy. It has been demonstrated that the suggested approach is effective at locating and assessing the extent of structural damage. MDPI 2022-11-26 /pmc/articles/PMC9737151/ /pubmed/36499935 http://dx.doi.org/10.3390/ma15238440 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Peng, Xi
Tian, Cunkang
Yang, Qiuwei
Structural Damage Identification Using the Optimal Achievable Displacement Variation
title Structural Damage Identification Using the Optimal Achievable Displacement Variation
title_full Structural Damage Identification Using the Optimal Achievable Displacement Variation
title_fullStr Structural Damage Identification Using the Optimal Achievable Displacement Variation
title_full_unstemmed Structural Damage Identification Using the Optimal Achievable Displacement Variation
title_short Structural Damage Identification Using the Optimal Achievable Displacement Variation
title_sort structural damage identification using the optimal achievable displacement variation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9737151/
https://www.ncbi.nlm.nih.gov/pubmed/36499935
http://dx.doi.org/10.3390/ma15238440
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