Experimental verification of a constitutive model for concrete cracking

Abstract

A constitutive model for concrete cracking, based on the smeared crack approach within the framework of the theory of plasticity, was verified by experiments on L-shaped structural members. The model is used for finite element ultimate load analyses of plain and reinforced concrete structures. The experimental investigations consisted of a series of L-shaped structural members, made of plain concrete and three series of reinforced L-shaped structural members with different layout of the reinforcement, which were loaded until failure. The comparison between experimental and computed results included the load at the initiation of cracking and the load-displacement curves in the pre- and post-peak regions. Additionally, the experimentally determined crack patterns were compared with the computed crack propagation and damage behaviour of the material.

Keywords

concrete elastoplastic model cracking tension softening tension stiffening finite element method non-linear material behaviour

Get full access to this article

View all access options for this article.

References

Isenberg

Finite Element Analysis of Reinforced Concrete Structures, Vol. II, 1993 (American Society of Civil Engineers, New York).

Hofstetter

Mang

H. A.

Computational Mechanics of Reinforced Concrete Structures, 1995 (Vieweg, Braunschweig).

Feenstra

P. H.

De Borst

Aspects of robust computational modelling for plain and reinforced concrete

Heron, 1993, 38 (4).

CEB-FIP model code 1990. Bulletin d'Information, Comité Euro-International du Béton, Lausanne, 1991.

Huemer

Automatische Vernetzung und adaptive nichtlineare statische Berechnungen von Fläachentragwerken mittels vierknotiger finiter Elemente. PhD thesis, University of Technology of Vienna, Austria, 1998.

Lackner

Mang

H. A.

Adaptive FEM for the analysis of concrete structures. In Computational Modelling of Concrete Structures (EURO-C 1998), 1998, Vol. 1, pp. 897–919.

Menrath

Numerische Simulation des nichtlinearen Tragverhaltens von Stahlverbundträgern. PhD thesis, University of Stuttgart, Germany, 1999.

Feenstra

P. H.

Computational aspects of biaxial stress in plain and reinforced concrete. PhD thesis, Delft University of Technology, Delft, The Netherlands, 1993.

Feenstra

P. H.

De Borst

A composite plasticity model for concrete

Int. J. Solids Structs, 1996, 33, 707–730.

10.

Kupfer

Hilsdorf

H. K.

Rüsch

Behavior of concrete under biaxial stresses

Am. Concr. Inst. J., 1969, 65, 656–666.

11.

Meiswinkel

Neubauer

Mitwirkung des Betons auf Zug zwischen den Rissen-Berechnung nach EC2

Beton- und Stahlbetonbau, 1995, 90 (10), 261–265.

12.

Meiswinkel

Rahm

Modelling tension stiffening in RC structures regarding nonlinear design analyses. In Proceedings of the European Conference on

Computational Mechanics (ECCM 1999), 1999, CD-ROM, 20 pp.

13.

Jirásek

Zimmermann

Rotating crack model with transition to scalar damage. I: local formulation; II: nonlocal formulation and adaptivity. LSC Internal Report 97/01, Swiss Federal Institute of Technology, Lausanne, Switzerland, 1997.