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Identification of the physical mechanisms underlying acoustic emissions during the cracking of concrete

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Abstract

The investigation presented concerns the use of acoustic emission as a tool for the interpretation and explanation of crtain physical mechanisms involved in mechanical damage to concrete. From assumptions made concerning the existence, for a given acoustic emission test and appratus, of ‘critical’ inclusion sizes that lead to irreversible mechanisms that can be detected by acoustic emission, it is shown that it is possible to distinguish cracks at the matrix-inclusion interface and cracks propagating in the matrix during mechanical tests.

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References

  1. Robert, J. L., Rossi, P., Gervais, J. P. and Bruhat, D., ‘Emission acoustique et mécanique de la rupture appliquée au béton’, Proceedings of Journée Internationale du COFREND, Paris, 1986.

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Authors and Affiliations

  1. Division Matériaux et Structures pour Ouvrage d’Art, Laboratoire Central des Ponts et Chaussées, 58 Boulevard Lefèbvre, 75732, Paris Cedex 15, France

    P. Rossi

  2. Cellule d’essais non destructifs, Laboratoire Central des Ponts et Chaussées, 58 Boulevard Lefèbvre, 75732, Paris Cedex 15, France

    J. L. Robert, J. P. Gervais & D. Bruhat

Authors
  1. P. Rossi
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  2. J. L. Robert
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  3. J. P. Gervais
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  4. D. Bruhat
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Rossi, P., Robert, J.L., Gervais, J.P. et al. Identification of the physical mechanisms underlying acoustic emissions during the cracking of concrete. Materials and Structures 22, 194–198 (1989). https://doi.org/10.1007/BF02472187

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  • DOI: https://doi.org/10.1007/BF02472187

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