Cargando…
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...
Autores principales: | , , |
---|---|
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 |
_version_ | 1784847213841612800 |
---|---|
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. |
format | Online Article Text |
id | pubmed-9737151 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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 |
work_keys_str_mv | AT pengxi structuraldamageidentificationusingtheoptimalachievabledisplacementvariation AT tiancunkang structuraldamageidentificationusingtheoptimalachievabledisplacementvariation AT yangqiuwei structuraldamageidentificationusingtheoptimalachievabledisplacementvariation |