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Influence of the Crack Opening Rate on the Fracture Toughness of Plain Concrete

Published online by Cambridge University Press:  25 February 2011

P. Rossi ,
C. Boulay ,
P. Acker  and
Y. Malier
P. Rossi
Affiliation:
Laboratoire Central des Ponts et Chaussées, Division Matériaux et Structures pour Ouvrages d'Art, 58 boulevard Lefebvre, 75732 Paris cedex 15, France.
C. Boulay
Affiliation:
Laboratoire Central des Ponts et Chaussées, Division Matériaux et Structures pour Ouvrages d'Art, 58 boulevard Lefebvre, 75732 Paris cedex 15, France.
P. Acker
Affiliation:
Laboratoire Central des Ponts et Chaussées, Division Matériaux et Structures pour Ouvrages d'Art, 58 boulevard Lefebvre, 75732 Paris cedex 15, France.
Y. Malier
Affiliation:
Laboratoire Central des Ponts et Chaussées, Division Matériaux et Structures pour Ouvrages d'Art, 58 boulevard Lefebvre, 75732 Paris cedex 15, France.
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Abstract

Three D.C.B. tests (Double Cantilever Beam) under different loading histories have shown that the applied crack opening rates can have an effect on the KIC fracture toughness values computed on the basis of linear elastic behavior of concrete. This assumption can be well justified for a certain range of crack opening rates, outside of which viscous phenomena must be taken in account. The concepts of ductile and brittle fracture appear then as related to the crack opening rate.

Keywords

Plain concretefracture toughnessviscoelastic behaviorcrack opening rate effectbrittle and ductile fracture
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 64: Symposium S – Cement-Based Composites: Strain Rate Effects on Fracture , 1985 , 39
Copyright
Copyright © Materials Research Society 1986

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References

REFERENCES

1. Rossi, P., Coussy, O., Boulay, C., Acker, P. and Malier, Y., Proceeding of the International Conference on Fracture Mechanics of Concrete, Lausanne, 351–360 (1985).Google Scholar
2. Rossi, P., Acker, P. and Frangois, D., Proceeding of the sixth International Conference on Fracture, New Delhi, 2833–2839 (1984).Google Scholar
3. Nguyen, Q.S., IUTAM Symposium, France, Dourdan, North Holland publishing Company, 315 (1981).Google Scholar
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