Three-Dimensional In Situ XCT Characterisation and FE Modelling of Cracking in Concrete
Three-dimensional (3D) characterisation and modelling of cracking in concrete have been always of great importance and interest in civil engineering. In this study, an in situ microscale X-ray computed tomography (XCT) test was carried out to characterise the 3D microscale structure and cracking beh...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Complexity |
| Online Access: | http://dx.doi.org/10.1155/2018/3856584 |
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| author | Wenyuan Ren Zhenjun Yang Rajneesh Sharma Samuel A. McDonald Paul M. Mummery |
| author_facet | Wenyuan Ren Zhenjun Yang Rajneesh Sharma Samuel A. McDonald Paul M. Mummery |
| author_sort | Wenyuan Ren |
| collection | DOAJ |
| description | Three-dimensional (3D) characterisation and modelling of cracking in concrete have been always of great importance and interest in civil engineering. In this study, an in situ microscale X-ray computed tomography (XCT) test was carried out to characterise the 3D microscale structure and cracking behaviour under progressive uniaxial compressive loading. The 3D cracking and fracture behaviour including internal crack opening, closing, and bridging were observed through both 2D tomography slices and 3D CT images. Spatial distributions of voids and cracks were obtained to understand the overall cracking process within the specimen. Furthermore, the XCT images of the original configuration of the specimen were processed and used to build microscale realistic 3D finite element (FE) models. Cohesive interface elements were inserted into the FE mesh to capture complicated discrete crack initiation and propagation. An FE simulation of uniaxial compression was conducted and validated by the in situ XCT compression test results, followed by a tension simulation using the same image-based model to investigate the cracking behaviour. The quantitative agreement between the FE simulation and experiment demonstrates that it is a very promising and effective technique to investigate the internal damage and fracture behaviour in multiphasic composites by combining the in situ micro XCT experiment and image-based FE modelling. |
| format | Article |
| id | doaj-art-d6d11247f7584c438db37625ae69bdf4 |
| institution | DOAJ |
| issn | 1076-2787 1099-0526 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Complexity |
| spelling | doaj-art-d6d11247f7584c438db37625ae69bdf42025-08-20T03:23:51ZengWileyComplexity1076-27871099-05262018-01-01201810.1155/2018/38565843856584Three-Dimensional In Situ XCT Characterisation and FE Modelling of Cracking in ConcreteWenyuan Ren0Zhenjun Yang1Rajneesh Sharma2Samuel A. McDonald3Paul M. Mummery4College of Water Resources and Architectural Engineering, Northwest A&F University, Xianyang 712100, ChinaResearch Centre of Built and Natural Environment, Coventry University, Coventry CV1 5FB, UKSchool of Engineering, Indian Institute of Technology Mandi, Mandi, IndiaManchester X-ray Imaging Facility, School of Materials, The University of Manchester, Manchester M13 9PL, UKSchool of Mechanical, Aerospace and Civil Engineering, The University of Manchester, Manchester M13 9PL, UKThree-dimensional (3D) characterisation and modelling of cracking in concrete have been always of great importance and interest in civil engineering. In this study, an in situ microscale X-ray computed tomography (XCT) test was carried out to characterise the 3D microscale structure and cracking behaviour under progressive uniaxial compressive loading. The 3D cracking and fracture behaviour including internal crack opening, closing, and bridging were observed through both 2D tomography slices and 3D CT images. Spatial distributions of voids and cracks were obtained to understand the overall cracking process within the specimen. Furthermore, the XCT images of the original configuration of the specimen were processed and used to build microscale realistic 3D finite element (FE) models. Cohesive interface elements were inserted into the FE mesh to capture complicated discrete crack initiation and propagation. An FE simulation of uniaxial compression was conducted and validated by the in situ XCT compression test results, followed by a tension simulation using the same image-based model to investigate the cracking behaviour. The quantitative agreement between the FE simulation and experiment demonstrates that it is a very promising and effective technique to investigate the internal damage and fracture behaviour in multiphasic composites by combining the in situ micro XCT experiment and image-based FE modelling.http://dx.doi.org/10.1155/2018/3856584 |
| spellingShingle | Wenyuan Ren Zhenjun Yang Rajneesh Sharma Samuel A. McDonald Paul M. Mummery Three-Dimensional In Situ XCT Characterisation and FE Modelling of Cracking in Concrete Complexity |
| title | Three-Dimensional In Situ XCT Characterisation and FE Modelling of Cracking in Concrete |
| title_full | Three-Dimensional In Situ XCT Characterisation and FE Modelling of Cracking in Concrete |
| title_fullStr | Three-Dimensional In Situ XCT Characterisation and FE Modelling of Cracking in Concrete |
| title_full_unstemmed | Three-Dimensional In Situ XCT Characterisation and FE Modelling of Cracking in Concrete |
| title_short | Three-Dimensional In Situ XCT Characterisation and FE Modelling of Cracking in Concrete |
| title_sort | three dimensional in situ xct characterisation and fe modelling of cracking in concrete |
| url | http://dx.doi.org/10.1155/2018/3856584 |
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