Behaviour of Hybrid Fibre-Reinforced ECC Composite Incorporating SMA Short Fibres under Effect of Impact Load

Document Type : Original Article

Authors

1 Egyptian Armed Forces.

2 Western University, London, ON, Canada.

Abstract

Abstract:
The impact behaviour of an innovative hybrid-fibre engineered cementitious composite (ECC) incorporating randomly dispersed short shape memory alloy (SMA) fibres was experimentally investigated. A drop weight test was conducted on different ECC mixtures to evaluate their ability to dissipate energy and sustain multiple impact loads. The experimental results indicated that utilizing a combination of those fibres can significantly enhance the impact performance of ECC. Among the tested ECC mixtures, the one that incorporates 2% PVA and 1% NiTi-SMA presents the best energy dissipation ability at all testing ages. Therefore, incorporating SMA in composite materials, especially which exposed to impact loads, can be an effective strategy in constructing safer structures.

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