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Dynamic Properties and Damage Model of Ultra-High Performance Fiber Reinforced Cement Composites Subjected to Repeated Impacts

Lai, J. / Sun, W. / Xu, S. / Yang, C.

Abstract Ultra-high performance fiber reinforced cement composites (UHPFRCC) is a new type of concrete with very high strength, ductility and durability and is expected to be used for innovative construction structures. The dynamic properties of UHPFRCC subjected to repeated impacts were investigated using the split Hopkinson pressure bar. The dynamic damage to the UHPFRCC was measured by ultrasonic wave velocity methods after each impact. The influence of different fibers and the number of impacts was researched on the stress-strain curves and dynamic damage of UHPFRCC. A damage model was proposed to simulate the stress-strain curves of UHPFRCC subjected to repeated impacts. Results showed that the simulation values were very close to those of the experiments.

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Dynamic Properties and Damage Model of Ultra-High Performance Fiber Reinforced Cement Composites Subjected to Repeated Impacts

Lai, J. / Sun, W. / Xu, S. / Yang, C.

Abstract Ultra-high performance fiber reinforced cement composites (UHPFRCC) is a new type of concrete with very high strength, ductility and durability and is expected to be used for innovative construction structures. The dynamic properties of UHPFRCC subjected to repeated impacts were investigated using the split Hopkinson pressure bar. The dynamic damage to the UHPFRCC was measured by ultrasonic wave velocity methods after each impact. The influence of different fibers and the number of impacts was researched on the stress-strain curves and dynamic damage of UHPFRCC. A damage model was proposed to simulate the stress-strain curves of UHPFRCC subjected to repeated impacts. Results showed that the simulation values were very close to those of the experiments.

Dynamic Properties and Damage Model of Ultra-High Performance Fiber Reinforced Cement Composites Subjected to Repeated Impacts

Lai, J. / Sun, W. / Xu, S. / Yang, C.

Abstract Ultra-high performance fiber reinforced cement composites (UHPFRCC) is a new type of concrete with very high strength, ductility and durability and is expected to be used for innovative construction structures. The dynamic properties of UHPFRCC subjected to repeated impacts were investigated using the split Hopkinson pressure bar. The dynamic damage to the UHPFRCC was measured by ultrasonic wave velocity methods after each impact. The influence of different fibers and the number of impacts was researched on the stress-strain curves and dynamic damage of UHPFRCC. A damage model was proposed to simulate the stress-strain curves of UHPFRCC subjected to repeated impacts. Results showed that the simulation values were very close to those of the experiments.

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Title:

Dynamic Properties and Damage Model of Ultra-High Performance Fiber Reinforced Cement Composites Subjected to Repeated Impacts

Contributors:

Lai, J. (author) / Sun, W. (author) / Xu, S. (author) / Yang, C. (author)

Published in:

High Performance Fiber Reinforced Cement Composites 6 ; 389-396

RILEM State of the Art Reports ; 2

Publication date:

2012-01-01

Size:

8 pages

ISBN:

978-94-007-2435-8 , 978-94-007-2436-5

ISSN:

2211-0844 , 2211-0852

DOI:

https://doi.org/10.1007/978-94-007-2436-5_47

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

Steel Fiber , Fiber Volume Fraction , Impact Mode , Basalt Fiber , Hybrid Fiber Engineering , Civil Engineering , Building Materials , Building Repair and Maintenance , Theoretical and Applied Mechanics , Computer-Aided Engineering (CAD, CAE) and Design

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