Book chapter
Fracture of Hybrid Microfiber Reinforced Cement Composites
Earth & Space 2008, pp.1-8
2008
Handle:
https://hdl.handle.net/2376/115297
Abstract
In this study, the effect of hybrid microfiber reinforcement on fracture energy and crack propagation in cement matrix composites is evaluated. The cracks in cement matrix composites are allowed to fracture under Mode I loading using a notched three-point bending beam (3PBB) specimen. Influence of fiber type and their combination is quantified using fracture energy and toughness index. It is demonstrated that a hybrid combination of steel fibers and polyvinyl alcohol (PVA) micro-fibers enhances the resistance to both the nucleation and growth of cracks. A micromechanical model of hybrid composites based on a fiber bridging law is used to compare with experimentally measured data. The influencing role of the fiber combination becomes manifest in the fracture tests. The fundamental fracture tests are very effective in characterizing and developing high performance hybrid fiber composites.
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Details
- Title
- Fracture of Hybrid Microfiber Reinforced Cement Composites
- Creators
- Pizhong QiaoYing Chen
- Publication Details
- Earth & Space 2008, pp.1-8
- Academic Unit
- Civil and Environmental Engineering, Department of
- Identifiers
- 99900547689901842
- Language
- English
- Resource Type
- Book chapter