Crack Bridging Model for Fibre Reinforced Concrete Under Fatigue Tension

Topics:
Civil and Environmental
Tags:
Bond,
Fiber,
Network Technology,
Networking
Source:
Reed Elsevier

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Overview: Recent theoretical investigations have shown that the rate of fatigue crack growth in fiber reinforced cement-based composites is strongly dependent on the cyclic crack bridging law of the materials. Thus, the basic understanding on crack bridging mechanics is very important and can provide a means of significant improvement of the fatigue performance of fiber reinforced concrete (FRC) structures. In this paper, a cyclic crack bridging model including bond between fiber and matrix degradation for FRC is developed. The model is based on the assumption that the frictional dependent bond strength is gradually reduced due to the interface degradation during fiber pull-out and slip-back.

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Format: PDF | Size: 826KB | Date: Apr 2001 | Pages: 16


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