Abstract
In the present work, three experimental methods have been employed to characterize the dynamic tensile, shear and confined behavior of an UHSC (Ultra-High Strength Concrete) with and without steel fiber reinforcement. On the one hand, a dynamic testing method was developed to investigate the post-peak tensile behavior of UHSC. A Split-Hopkinson Pressure Bar (SHPB) device is used and the notched-concrete sample is glued in-between the input and output bar. A compressive pulse reflects as a tensile pulse leading to the breakage of the sample. In this case a strong influence of fibers is noted. On the other hand, two experimental methods are used to investigate the confined behavior of UHSC under shear and quasi-oedometric loading paths. In the quasi-oedometric compression test the concrete sample is inserted in a confining vessel and axially compressed. Hydrostatic pressure as high as 800 MPa are obtained and the hydrostatic and deviatoric behavior are deduced. The PTS (Punch-Trough-Shear test) provides lateral pressure of over 70 MPa in the sheared zone, high shear strain and leads to a mode II fracturing of the sample. Influence of fibers on the dynamic behavior of UHSC is discussed thanks to the previous experiments.
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Malier, Y.: Les bétons à hautes performances, l’Ecole Nationale des Ponts et Chaussées, France (1992)
Richard, P., Cheyrezy, M.: Composition of reactive powder concretes. Cem. Concr. Res. 25(7), 1501–1511 (1995)
Forquin, P., Hild, F.: Dynamic Fragmentation of an ultra-high strength concrete during edge-on impact tests. J. Eng. Mech. 4(134), 302–315 (2008)
Bayard, O.: Approche multi-échelles du comportement mécanique des bétons à ultra hautes performances renforcés par des fibres courtes. Ph.D. dissertation, Ecole Normale Supérieure de Cachan, French (2003)
Li, Q.M., Reid, S.R., Wen, H.M., Telford, A.R.: Local impact effects of hard missiles on concrete targets. Int. J. Impact Eng. 32(1–4), 224–284 (2005)
Forquin, P., Arias, A., Zaera, R.: Role of porosity in controlling the mechanical and impact behaviours of cement-based materials. Int. J. Impact Eng. 35(3), 133–146 (2008)
Forquin, P., Sallier, L., Pontiroli, C.: A numerical study on the influence of free water content on the ballistic performances of plain concrete targets. Mech. Mater. 89, 176–189 (2015)
Erzar, B., Forquin, P.: Experiments and mesoscopic modelling of dynamic testing of concrete. Mech. Mater. 43, 505–527 (2011)
Forquin, P., Safa, K., Gary, G.: Influence of free water on the quasi-static and dynamic strength of concrete in confined compression tests. Cem. Concr. Res. 40(2), 321–333 (2010)
Forquin, P., Arias, A., Zaera, R.: Relationship between mesostructure, mechanical behaviour and damage of cement composites under high-pressure confinement. Exp. Mech. 49(5), 613–625 (2008)
Forquin, P., Arias, A., Zaera, R.: An experimental method of measuring the confined compression strength of geomaterials. Int. J. Solids Struct. 44(13), 4291–4317 (2007)
Backers, T., Stephansson, O., Rybacki, E.: Rock fracture toughness testing in Mode II—punch-through shear test. Int. J. Rock Mech. Min. Sci. 39(6), 755–769 (2002)
Forquin, P., Sallier, L.: A testing technique to characterise the shear behaviour of concrete at high strain-rates. In: Chalivendra, V., Song, B., Casem, D. (eds.) Dynamic Behaviour of Materials, vol. 1, pp. 531–536. Springer, New York (2013)
Acknowledgments
This research has been performed with the financial support of the Gramat Research Center (CEA-Gramat). We would like to thank Dr. Eric Buzaud (CEA-Gramat), Dr. Benjamin Erzar and Dr. Christophe Pontiroli (CEA-Gramat) for their sound technical and scientific advices. The support of LabEx Tec 21 (Investissements d’Avenir - grant agreement n°ANR-11-LABX-0030) is also gratefully acknowledged by the authors.
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© 2016 The Society for Experimental Mechanics, Inc.
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Forquin, P., Lukic, B. (2016). Experimental Techniques to Characterize the Mechanical Behaviour of Ultra-High-Strength-Concrete Under Extreme Loading Conditions. In: Song, B., Lamberson, L., Casem, D., Kimberley, J. (eds) Dynamic Behavior of Materials, Volume 1. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-22452-7_32
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DOI: https://doi.org/10.1007/978-3-319-22452-7_32
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