Abstract
Meso-scale two-dimensional finite element models are developed for fracture modelling in concrete based on images from an in-situ microscale X-ray Computed Tomography test. In the models, the material heterogeneity is characterised by “real” multi-phases, namely, aggregates, cement and voids. Zero-thickness cohesive interface elements (CIEs) with normal/shear traction-separation
constitutive laws are embedded within cement and on aggregate-cement interfaces to simulate potential cracks. Simulations of uniaxial tension tests were carried out. The results show good
qualitative and quantitative agreement with experimental observations and simulations from literatures.
constitutive laws are embedded within cement and on aggregate-cement interfaces to simulate potential cracks. Simulations of uniaxial tension tests were carried out. The results show good
qualitative and quantitative agreement with experimental observations and simulations from literatures.
| Original language | English |
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| Title of host publication | Proceedings of the 5th Asia Pacific Congress on Computational Mechanics and 4th International Symposium on Computational Mechanics, (11th - 14th Dec. 2013, Singapore) |
| Editors | G.R. Liu, Z.S. Liu |
| Number of pages | 5 |
| Publication status | Published - 2013 |
| Externally published | Yes |
| Event | 5th Asia Pacific Congress on Computational Mechanics - , Singapore Duration: 11 Dec 2013 → 14 Dec 2013 Conference number: 5th |
Conference
| Conference | 5th Asia Pacific Congress on Computational Mechanics |
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| Abbreviated title | APCOM2013 |
| Country/Territory | Singapore |
| Period | 11/12/13 → 14/12/13 |
Keywords
- Concrete
- X-ray computed tomography
- Image based modelling
- Cohesive zone model
- Meso-scale finite element model