PSI - Issue 47

Ezio Cadoni et al. / Procedia Structural Integrity 47 (2023) 331–336 Author name / Structural Integrity Procedia 00 (2023) 000–000

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5. Conclusions

To fully understand the dynamic behaviour of UHPFRC, a comprehensive experimental campaign is necessary to gather information about the material’s response under various loading conditions and across a wide range of strain rates. A specific experimental program has been designed to measure the mechanical properties at high strain rates under compression, taking into account previous compression states. The results have shown the impact of fibres on the compression response and the e ff ect of specimen size on strength and fracture time. For a realistic assessment of a structure’s response to blast or impact, numerical and analytical methods must be utilised. The experimental results obtained have been evaluated using the DAMP material failure criteria, which has been shown to be a reliable model. This criteria will be used to assess the structural reliability of buildings and elements subjected to high dynamic loads.

Acknowledgements

The authors would like to express their sincere gratitude to Dr. A. Koch and Dr. R. Lorenzo for fruitful discussions and Federal Department of Defence, Civil Protection and Sport —armasuisse Science and Technology — of the Swiss Confederation for supporting the experiments.

References

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