Properties and Simulation of UHPC and FGCC Subjected to the Coupling of Penetration and Explosion
Publication: Journal of Materials in Civil Engineering
Volume 33, Issue 6
Abstract
Targets made by ultra-high-performance concrete (UHPC) and functionally graded cementitious composite (FGCC) were manufactured and their dynamic behaviors were researched under the coupling of penetration from bullets and TNT explosions. The FGCC targets including the antipenetration layer, crack resistance layer, and spalling resistance layer were made of coarse aggregate reinforced UHPC, hybrid fiber–reinforced UHPC, and steel fiber–reinforced UHPC, respectively. The dynamic fracture of UHPC and FGCC targets were investigated and the penetration and explosion process were researched using the smoothed particle hydrodynamics (SPH) method. The crater sizes, fracture patterns, and attack damage of UHPC and FGCC targets were measured respectively. Results show that the resistance of FGCC against penetration and explosion was increased by the reinforcement of alumina aggregates. The minimum penetration depth of the FGCC target decreased greatly compared with the UHPC target. The dynamic processes of UHPC and FGCC subjected to penetration and explosion were simulated by the SPH algorithm. The simulated crater sizes were close to the experimental data. Penetration models were proposed to calculate the crater depths of UHPC and FGCC based on the Forrestal model. The deviations between the penetration models and experiments were small.
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Data Availability Statement
The data used to support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
This work is supported by the National Nature Science Foundation of China (Nos. 52078253 and 51678308).
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Published In
Journal of Materials in Civil Engineering
Volume 33 • Issue 6 • June 2021
Copyright
© 2021 American Society of Civil Engineers.
History
Received: Jan 3, 2020
Accepted: Sep 14, 2020
Published online: Mar 25, 2021
Published in print: Jun 1, 2021
Discussion open until: Aug 25, 2021
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