Stereophotogrammetry and Localization in Concrete under Compression
Publication: Journal of Engineering Mechanics
Volume 117, Issue 7
Abstract
During displacement‐controlled compression tests on concrete samples, the force displacement curve present a decreasing part. For many authors this part of the curve represents the homogeneous material behavior. This behavior is called softening. But results of compression tests cast some doubt about whether the strain field is indeed homogeneous on the softening part of the tests. These results can only be explained if strain localization occurs. To analyze the occurrence and development of this strain localization we use stereophotogrammetry. Stereophotogrammetry is among the most accurate optical methods used to study strain localization in civil engineering. After an overview of the method we present an example of its application to the phenomenon of strain localization during a displacement‐controlled compression test of a concrete sample. Our experiment shows that localization occurs when the stress becomes maximal. Thereafter, in the softening regime, the strain field is no longer homogeneous and the stress‐strain constitutive relation cannot be determined solely from knowledge of the force‐displacement curve.
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References
1.
Bažant, Z. P. (1976). “Instability, ductility, and size effect in strain‐softening concrete.” J. Engrg. Mech. Div., ASCE, 102(2), 331–344.
2.
Bažant, Z. P. (1988). “Stability states and paths of structures with plasticity and damage.” J. Engrg. Mech. Div., ASCE, 114(12), 2013–2034.
3.
Benefice, P., and Boehler, J. P. (1979). “The application of stereophotogrammetry to the analysis of displacement fields in solid mechanics.” Proc. IUTAM Symp. on Optical Methods in Mech. of Solids.
4.
Cichy, W., Boulon, M., and Desrues, J. (1987). “Etude expérimentale stéréophotogrammétrique des interfaces sols‐fondations à la boite de cisaillement direct.” Proc. Fourth Colloque Franco‐Polonais de Mécanique des Sols Appliquée.
5.
Desrues, J. (1983). “Sur l'application de la stéréophotogrammétrie à la mesure des grandes déformations.” Revue Française de Mécanique, 3, 55–63 (in French).
6.
Desrues, J. (1984). “Localisation de la déformation dans les matériaux granulaires.” thesis, presented to the Université Scientifique et Médicale de Grenoble, at Grenoble, France, in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
7.
Mazars, J. (1984). “Application de la mécanique de l'endommagement au comportement non linéaire et à la rupture du béton de structure,” thesis presented to the University of Paris, at Paris, France, in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
8.
Mazars, J., and Bažant, Z. P., eds. (1989). Cracking and damage. Strain localization and size effect. Elsevier, New York, N.Y.
9.
Ostaficzuk, S. (1968). “Application des méthodes photogrammétriques non typiques en géologie avec l'utilisation des appareils du VEB Carl Zeiss JENA.” Revue d'Iena, 13(2), 130–133 (in French).
10.
Popovics, S. (1973). “A numerical approach to the complete stress‐strain curve of concrete.” Cem. Concr. Res., 3(4), 583–599.
11.
Saenz, L. P. (1964). Discussion of “Equation for the stress‐strain curve of concrete,” by P. Desayi, and S. Krishnan, ACI Journal, 61(9), 1229–1235.
12.
Torrenti, J. M., Desrues, J., Puch, C., and Malier, Y. (1989). “Application de la stéréophotogrammétrie à l'étude de la localisation des déformations dans le béton.” Bull Liaison Lab. Ponts Chaussées, 159, 105–110 (in French).
13.
Torrenti, J. M. (1986). “Some remarks upon concrete softening.” Mater. Struct., 19(113), 391–394.
14.
Torrenti, J. M., and Royis, P. (1989). “Etude numérique du dimensionnement et du fonctionnement d'un appui anti‐frettage pour le béton.” Mater. Struct., 22, 149–158 (in French).
15.
Van Mier, J. G. (1986). “Fracture of concrete under complex stress.” Heron, 31(3).
16.
Vogl, W., and Miehle, K. (1976). “Mesures photogrammétriques des déformations sue le pont de transport des déblais II de 42m dans l'exploitation à ciel ouvert de Spreetal.” Revue d'Iena, 21(2), 101–105 (in French).
Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 117 • Issue 7 • July 1991
Pages: 1455 - 1465
Copyright
Copyright © 1991 ASCE.
History
Published online: Jul 1, 1991
Published in print: Jul 1991
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