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Experimental determination of KIIC of normal strength concrete

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Abstract

The double-edge notched specimen made of normal strength concrete has been subjected to compressive loads. It is shown that a shear crack develops at the notch tip. Visual observation and evaluation of displacement measurements have proven that this specimen allows pure mode II testing. It was possible to determine fracture toughness KIIc. Recommendations for the testing are made.

Résumé

Une éprouvette entaillée sur deux côtés opposés en béton de résistance normale a été soumise à des charges de compression. On démontre que la fissure de cisaillement se développe à la pointe de l’entaille. L’observation visuelle et l’évaluation des mesures de déplacement montre que ce type d’éprouvette permet des essais en mode II pur. Il a été possible de déterminer la résilience à la rupture KIIc. On donne des recommandations pour des essais.

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Authors and Affiliations

  1. Institute of Construction Materials, Stuttgart University, Stuttgart, Germany

    Hans-Wolf Reinhardt & Shilang Xu

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  1. Hans-Wolf Reinhardt
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  2. Shilang Xu
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Editorial Note Prof. Dr.-Ing. H.-W. Reinhardt and Prof. Dr. Shilang Xu work at the FMPA Baden-Württemberg, Otto-Graf Institut, Germany, a RILEM Titular Member, and at the Institute of Construction Materials, Stuttgart University. Prof. Reinhardt is a RILEM Senior Member and a RILEM Fellow. He is also the RILEM National Delegate to Germany. He is Chairman of TC 146-TCF, a member of TC 148-SSC and participates in the Editorial Group of TC 090-FMA. He is also a corresponding member of TCs 107-CSP, 126-IPT, 160-MLN and 162-TDF.

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Reinhardt, HW., Xu, S. Experimental determination of KIIC of normal strength concrete. Mat. Struct. 31, 296–302 (1998). https://doi.org/10.1007/BF02480670

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