Abstract
The fracture of microcapsules in the encapsulation-based self-healing concrete is the most important aspect to release the healing agents and hence heal the cracks. This paper studied computationally the impacts of the microcapsule size and the interfacial fracture proprieties between the microcapsule and the concrete on the fracture mechanism of the self-healing concrete (SHC). The proposed modelling combined the extended finite element method (XFEM) and cohesive surface technique to model the fracture of uniaxial tensile test SHC specimens. When compared to the zero thickness cohesive element approach on the same specimens, the proposed model shows high accuracy in determining load carrying capability and fracture pattern. The interfacial fracture properties and core-shell thickness of the microcapsule determine whether it fractures or debonds. The microcapsule with the thinnest shell is more likely to be fractured.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
