Three-Dimensional In Situ XCT Characterisation and FE Modelling of Cracking in Concrete
Joint Authors
Yang, Z.
Ren, Wenyuan
Sharma, Rajneesh
McDonald, Samuel A.
Mummery, Paul M.
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-07-18
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
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.
American Psychological Association (APA)
Ren, Wenyuan& Yang, Z.& Sharma, Rajneesh& McDonald, Samuel A.& Mummery, Paul M.. 2018. Three-Dimensional In Situ XCT Characterisation and FE Modelling of Cracking in Concrete. Complexity،Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1133815
Modern Language Association (MLA)
Ren, Wenyuan…[et al.]. Three-Dimensional In Situ XCT Characterisation and FE Modelling of Cracking in Concrete. Complexity No. 2018 (2018), pp.1-11.
https://search.emarefa.net/detail/BIM-1133815
American Medical Association (AMA)
Ren, Wenyuan& Yang, Z.& Sharma, Rajneesh& McDonald, Samuel A.& Mummery, Paul M.. Three-Dimensional In Situ XCT Characterisation and FE Modelling of Cracking in Concrete. Complexity. 2018. Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1133815
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1133815