Correlation between Coda Wave and Stresses in Uni-Axial Compression Concrete
Stresses in structures are usually converted by measured strains based on corresponding constitutive relations of materials. However, it is difficult to determine the constitutive relation of the material accurately, which leads to significant uncertainty of the converted stresses. This paper propos...
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| Format: | Article |
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MDPI AG
2018-09-01
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| Series: | Applied Sciences |
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| Online Access: | http://www.mdpi.com/2076-3417/8/9/1609 |
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| author | Jinquan Zhang Bing Han Hui-Bing Xie Li Zhu Gang Zheng Wenwu Wang |
| author_facet | Jinquan Zhang Bing Han Hui-Bing Xie Li Zhu Gang Zheng Wenwu Wang |
| author_sort | Jinquan Zhang |
| collection | DOAJ |
| description | Stresses in structures are usually converted by measured strains based on corresponding constitutive relations of materials. However, it is difficult to determine the constitutive relation of the material accurately, which leads to significant uncertainty of the converted stresses. This paper proposed a method to estimate the stresses in concrete by using the coda wave interference technique and established a model to describe the relation between the deformation of microcracks and the sound velocity. Based on the experiments, the development law of the coda waves with different frequencies of sound signal propagating in concrete was verified and discussed, and the change of the coda wave velocity during the loading and unloading of the specimen was tested. Parameters involved in the established model were regressed according to the experimental data. The analysis results show that the method can be used to test concrete stress and has a desirable accuracy. |
| first_indexed | 2024-12-13T04:13:57Z |
| format | Article |
| id | doaj.art-6bb5d9609af74ccbb41f85e98599476d |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-13T04:13:57Z |
| publishDate | 2018-09-01 |
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| series | Applied Sciences |
| spelling | doaj.art-6bb5d9609af74ccbb41f85e98599476d2022-12-21T23:59:56ZengMDPI AGApplied Sciences2076-34172018-09-0189160910.3390/app8091609app8091609Correlation between Coda Wave and Stresses in Uni-Axial Compression ConcreteJinquan Zhang0Bing Han1Hui-Bing Xie2Li Zhu3Gang Zheng4Wenwu Wang5School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, ChinaSchool of Civil Engineering, Beijing Jiaotong University, Beijing 100044, ChinaSchool of Civil Engineering, Beijing Jiaotong University, Beijing 100044, ChinaSchool of Civil Engineering, Beijing Jiaotong University, Beijing 100044, ChinaSchool of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, ChinaSchool of Civil Engineering, Beijing Jiaotong University, Beijing 100044, ChinaStresses in structures are usually converted by measured strains based on corresponding constitutive relations of materials. However, it is difficult to determine the constitutive relation of the material accurately, which leads to significant uncertainty of the converted stresses. This paper proposed a method to estimate the stresses in concrete by using the coda wave interference technique and established a model to describe the relation between the deformation of microcracks and the sound velocity. Based on the experiments, the development law of the coda waves with different frequencies of sound signal propagating in concrete was verified and discussed, and the change of the coda wave velocity during the loading and unloading of the specimen was tested. Parameters involved in the established model were regressed according to the experimental data. The analysis results show that the method can be used to test concrete stress and has a desirable accuracy.http://www.mdpi.com/2076-3417/8/9/1609coda wave interferometryconcretestressmicrocracks |
| spellingShingle | Jinquan Zhang Bing Han Hui-Bing Xie Li Zhu Gang Zheng Wenwu Wang Correlation between Coda Wave and Stresses in Uni-Axial Compression Concrete Applied Sciences coda wave interferometry concrete stress microcracks |
| title | Correlation between Coda Wave and Stresses in Uni-Axial Compression Concrete |
| title_full | Correlation between Coda Wave and Stresses in Uni-Axial Compression Concrete |
| title_fullStr | Correlation between Coda Wave and Stresses in Uni-Axial Compression Concrete |
| title_full_unstemmed | Correlation between Coda Wave and Stresses in Uni-Axial Compression Concrete |
| title_short | Correlation between Coda Wave and Stresses in Uni-Axial Compression Concrete |
| title_sort | correlation between coda wave and stresses in uni axial compression concrete |
| topic | coda wave interferometry concrete stress microcracks |
| url | http://www.mdpi.com/2076-3417/8/9/1609 |
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