Mechanical Behavior of Concrete

PDF Free Download | Mechanical Behavior of Concrete by Jean-Michel Torrenti, Gilles Pijaudier-Cabot, and Jean-Marie Reynouard

Contents of Mechanical Behavior of Concrete

PART 1. INSTANTANEOUS OR TIME-INDEPENDENT MODELS FOR CONCRETE
Chapter 1. Test Techniques and Experimental Characterization
Experimental specificities related to concrete material
Composition and variability of the material
Specimen preparation
Preservation and curing conditions
Size effect
Extensometers and experimental conditions
Classical extensometry on a concrete specimen
Boundary conditions and experimental set-up
Behavior of concrete under uniaxial stress: classical tests
Direct uniaxial tension
Indirect uniaxial tension
Diffuse tension test
Bi-tube tension test
Uniaxial compression
Uniaxial torsion
Concrete under multiaxial stresses
Multiaxial stresses with tension
Biaxial compression
Triaxial compression
Mechanical Behavior of Concrete
Conclusions regarding the experimental characterization of the multiaxial behavior of concrete
Bibliography
Chapter 2. Modeling the Macroscopic Behavior of Concrete
The discrete approach
Fracture mechanics – elements for the analysis
of cracked areas
Discrete approach to cracking
Hillerborg’s fictitious crack model
Continuous approach
Damage mechanics
Plasticity theory
Conclusion
Bibliography
Chapter 3. Failure and Size Effect of Structural Concrete
Probabilistic structural size effect
Basics of the weakest link theory
Generalized probabilistic size effect law
Deterministic size effect
Fractality and size effect
Basis of the fractal approach
Fractality of the fracture surface and fracture energy
Lacunar fractality and multifractality of the nominal
stress at failure
Size effect and calibration of non-local models
Description of size effect according to the non-local
damage model
Calibration of internal length from size effect test data
Conclusions
Acknowledgement
Bibliography
PART 2. CONCRETE UNDER CYCLIC AND DYNAMIC LOADING
Chapter 4. Cyclic Behavior of Concrete and Reinforced Concrete
Jean-François DUBÉ
Characterization tests of the cyclic behavior
Uniaxial cyclic behavior
Cyclic tests on structural elements
Conclusions
Modeling the reinforced concrete cyclic behavior
Thermodynamic-based model with crack closure
Distributed cracking models
Microplane model
Modeling of the cyclic behavior of concrete
Characteristics of the cyclic behavior and their influence
Influence of the loading rate
Conclusions
Bibliography
Chapter 5. Cyclic and Dynamic Loading Fatigue of Structural Concrete
The mechanisms of concrete fatigue
Nature of the phenomenon
Fatigue strength and number of cycles to failure
Strains and damage
The fatigue strength under uniaxial compression or traction
Aas-Jakobsen’s formula
S-N-R curves
Ros’s diagram
Haigh’s diagram
Goodman-Smith’s diagram
Extension to Aas-Jakobsen’s formula
Effect of the frequency and the cycle shape
Fatigue under alternate uniaxial loading
Fatigue under multiaxial loading
Fatigue in the presence of passive confinement
Fatigue under biaxial loading
Fatigue under triaxial cyclic loading
Fatigue under high-level cyclic loading
General principles for the analysis
Modified Aas-Jakobsen’s formula
Mechanical Behavior of Concrete
Formulas based upon the theories of damage
Fatigue strength under variable level cyclic loadings
Rule of linear accumulation
Rule of non-linear accumulation
Fatigue under random loading
Bibliography
Chapter 6. Rate-Dependent Behavior and Modeling for
Transient Analyses
Fabrice GATUINGT
Introduction
Experimental behavior
Dynamic behavior in uniaxial compression
Dynamic behavior in uniaxial tension
Dynamic behavior in multiaxial loading
Behavior modeling of concrete in dynamics
Modeling of dynamic failure of concrete using a viscoelastic viscoplastic damage continuum model
A damage model for the dynamic fragmentation of brittle solids
Anisotropic three-dimensional delay-damage model
Damage coupled to plasticity for high strain rate dynamics
Bibliography
PART 3. TIME-DEPENDENT RESPONSE OF CONCRETE
Chapter 7. Concrete at an Early Age: the Major Parameters
Influence of the composition of concrete
Characteristics related to the temperature of concrete
Mechanical characteristics
Consequences of boundary conditions
Consequences of thermal boundary conditions
Consequences of hygrometric boundary conditions
Consequences of mechanical boundary conditions
Conclusion
Bibliography
Chapter 8. Modeling Concrete at Early Age
The coupled thermo-chemo-mechanical problem
Macroscopic modeling of hydration
Identification of the hydration kinetics
Identification of the normalized affinity
Data collection and experimental methods
Degree of hydration
Volume changes
Mechanical behavior
Conclusion
Bibliography
Chapter 9. Delayed Effects – Creep and Shrinkage
Definitions and mechanisms
Microstructure of cement paste
Shrinkage
Creep
Experimental approach
Tests
Testing equipment
Data processing
Delayed response modeling
Modeling drying
Modeling of the desiccation shrinkage
Creep modeling
Conclusion
Codified models
Goals and limitations of codified models
RILEM recommendations on codified models characteristics
Comparison of the performance of the principal models currently proposed in the case of different codes in Europe and in the United States
Conclusion
Bibliography
Mechanical Behavior of Concrete