Identification of Structural Sealant Damage in Hidden Frame Glass Curtain Wall Based on Curvature Mode
To assess structural sealant damage in hidden frame glass curtain walls (HFGCWs) during service, damage states were simulated by controlled cutting with varying incision lengths. Quantitative identification challenges were investigated through natural frequency and curvature modal difference (CMD) a...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-06-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/15/12/6568 |
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| author | Yuqin Yan Xiangcheng Wang Xiaonan Li Xin Zhang Fan Yang Jie Sun |
| author_facet | Yuqin Yan Xiangcheng Wang Xiaonan Li Xin Zhang Fan Yang Jie Sun |
| author_sort | Yuqin Yan |
| collection | DOAJ |
| description | To assess structural sealant damage in hidden frame glass curtain walls (HFGCWs) during service, damage states were simulated by controlled cutting with varying incision lengths. Quantitative identification challenges were investigated through natural frequency and curvature modal difference (CMD) analyses at multiple test points. The results indicate that natural frequency decreases with increasing damage severity, while the first-order curvature mode difference (FCMD) exhibits localized abrupt changes in damaged regions. Boundary modes provide more targeted and accurate damage identification. The peak value of the FCMD mutation region enables precise damage localization. A quantitative damage identification threshold of 0.1205 was derived from FCMD distribution characteristics in boundary regions. By leveraging boundary mode features, modal testing efficiency is optimized, reducing the required acquisition nodes and effectively guiding structural sealant damage detection in engineering applications. |
| format | Article |
| id | doaj-art-9deaf4b6051d47fdaa31ea710e3c07b4 |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-9deaf4b6051d47fdaa31ea710e3c07b42025-08-20T03:27:15ZengMDPI AGApplied Sciences2076-34172025-06-011512656810.3390/app15126568Identification of Structural Sealant Damage in Hidden Frame Glass Curtain Wall Based on Curvature ModeYuqin Yan0Xiangcheng Wang1Xiaonan Li2Xin Zhang3Fan Yang4Jie Sun5School of Mechanical and Electronic Engineering, Shandong Jianzhu University, Jinan 250101, ChinaSchool of Mechanical and Electronic Engineering, Shandong Jianzhu University, Jinan 250101, ChinaShandong Construction Development Research Institute, Jinan 250024, ChinaSchool of Mechanical and Electronic Engineering, Shandong Jianzhu University, Jinan 250101, ChinaSchool of Mechanical and Electronic Engineering, Shandong Jianzhu University, Jinan 250101, ChinaSchool of Mechanical and Electronic Engineering, Shandong Jianzhu University, Jinan 250101, ChinaTo assess structural sealant damage in hidden frame glass curtain walls (HFGCWs) during service, damage states were simulated by controlled cutting with varying incision lengths. Quantitative identification challenges were investigated through natural frequency and curvature modal difference (CMD) analyses at multiple test points. The results indicate that natural frequency decreases with increasing damage severity, while the first-order curvature mode difference (FCMD) exhibits localized abrupt changes in damaged regions. Boundary modes provide more targeted and accurate damage identification. The peak value of the FCMD mutation region enables precise damage localization. A quantitative damage identification threshold of 0.1205 was derived from FCMD distribution characteristics in boundary regions. By leveraging boundary mode features, modal testing efficiency is optimized, reducing the required acquisition nodes and effectively guiding structural sealant damage detection in engineering applications.https://www.mdpi.com/2076-3417/15/12/6568curtain wallstructural sealantquantitative damage identificationnatural frequencycurvature mode difference |
| spellingShingle | Yuqin Yan Xiangcheng Wang Xiaonan Li Xin Zhang Fan Yang Jie Sun Identification of Structural Sealant Damage in Hidden Frame Glass Curtain Wall Based on Curvature Mode Applied Sciences curtain wall structural sealant quantitative damage identification natural frequency curvature mode difference |
| title | Identification of Structural Sealant Damage in Hidden Frame Glass Curtain Wall Based on Curvature Mode |
| title_full | Identification of Structural Sealant Damage in Hidden Frame Glass Curtain Wall Based on Curvature Mode |
| title_fullStr | Identification of Structural Sealant Damage in Hidden Frame Glass Curtain Wall Based on Curvature Mode |
| title_full_unstemmed | Identification of Structural Sealant Damage in Hidden Frame Glass Curtain Wall Based on Curvature Mode |
| title_short | Identification of Structural Sealant Damage in Hidden Frame Glass Curtain Wall Based on Curvature Mode |
| title_sort | identification of structural sealant damage in hidden frame glass curtain wall based on curvature mode |
| topic | curtain wall structural sealant quantitative damage identification natural frequency curvature mode difference |
| url | https://www.mdpi.com/2076-3417/15/12/6568 |
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