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By Zihai Shi, Senior Researcher, Nippon Koei Co., Ltd
Description This new book on the fracture mechanics of concrete focuses on the latest developments in computational theories, and how to apply those
theories to solve real engineering problems. Zihai Shi uses his extensive research experience to present detailed examination of multiple-crack
analysis and mixed-mode fracture.
Compared with other mature engineering disciplines, fracture mechanics of concrete is still a developing
field with extensive new research and development. In recent years many different models and applications have been proposed for crack
analysis; the author assesses these in turn, identifying their limitations and offering a detailed treatment of those which have been
proved to be robust by comprehensive use.
After introducing stress singularity in numerical modelling and some basic modelling techniques,
the Extended Fictitious Crack Model (EFCM) for multiple-crack analysis is explained with numerical application examples. This theoretical
model is then applied to study two important issues in fracture mechanics - crack interaction and localization, and fracture modes and
maximum loads. The EFCM is then reformulated to include the shear transfer mechanism on crack surfaces and the method is used to study
experimental problems.
With a carefully balanced mixture of theory, experiment and application, Crack Analysis in Structural Concrete
is an important contribution to this fast-developing field of structural analysis in concrete.
Audience
Graduate students in civil and structural engineering and related disciplines. Professional civil and structural engineers.
Contents Introduction; Historical Overview; Computational Fracture Mechanics in Concrete; Fundamentals of Linear Elastic Fracture Mechanics and
Nonlinear Fracture Mechanics in Concrete; The Elastic Crack Tip Fields; Stress Intensity Factors; Plastic Zone Theory at Crack Tip; The
Energy Principle; Fracture Process Zone (FPZ) and Tension-Softening Phenomenon in Concrete; Fracture Energy GF and Tension-Softening
Law in Concrete; Theoretical Models for Fracture Based on Discrete and Smeared Approaches; Discrete Crack Approach; Smeared Crack Approach;
Issues and Numerical Techniques with Discrete Approach; Singularity Issue; Modified Load-Control Method; Incremental Stress Analysis;
Crack Path Modelling with Dual Nodes; Re-meshing for Arbitrary Crack Path; Extended Fictitious Crack Model for Multiple-Crack Analysis;
Core Issues in Multiple-Crack Analysis; Solution Strategy; Numerical Formulation for Mode-I Type of Fracture; Crack Analysis of Simple
Beams; Crack Analysis of Compression Tests of Real-Size Tunnel Lining Specimens; Crack Analysis of Scale-Model Tests of Gravity Dams;
Crack Interaction and Localization; Interaction Coefficient and Principal Tip Force (PTF) Coefficient; Numerical Studies on Various Cracking
Behaviours in Concrete Beams with Multiple Notches; Mechanisms of Crack Localization; Relationships of Notch Size, Stress Concentration
Factor and PTF Coefficient; Strong and Weak Interaction Problems; Failure Modes and Maximum Loads of Notched Beams; Bending Tests with
Different Notch Sizes and Load Positions; Numerical Studies on How Failure Modes Affect Maximum Loads; Engineering Implications; Mixed-Mode
Fracture; Proposed Shear Transfer Law with Shear-Lag Characteristic; Reformulation of Extended Fictitious Crack Model for Mixed-Mode
Fracture; Numerical Analyses of Single-Notched Shear Beams; Numerical Analyses of Scale-Model Tests of Gravity Dams as Mixed-Mode Fracture
Problems; Applications: Discrete Crack Approach; Pseudo-Shell Model for Crack Analysis of Tunnel Lining; Progressive Cracking in Waterway
Tunnels and Safety Evaluation; Excessive Cracking in Concrete Lining of Highway Tunnels and Evaluation of Soil Pressure for Installation
of Reinforcement Work; Applications: Smeared Crack Approach; Three-Dimensional Crack Modelling; 3D Numerical Studies on Excessive Cracking
Behaviour in RC Cantilever Decks of Highway Bridges; Limit State Analysis and Design of Aging and Renovated Sewage Structures
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