Elasto-Plastic Damage Behaviour of Concrete Elements presents the results of practical experiments with numerical analyses and case studies, along with a summary of basic theory, to provide an accessible explanation for young practising engineers on the performance evaluation of concrete structures.
It shows how the mechanical phenomena of familiar concrete structures can be expressed using mathematical models and provides a solid basic understanding of the nonlinear behaviour of concrete structures. It applies elasto-plastic theory to damage mechanics and the modelling of cracks in concrete, drawing on the author’s 25 years of design and construction experience as a professional engineer, as well as recent research.
Sets out the reality of damage mechanics in concrete
Connects standard theory with good design and construction practice
The book is suitable for structural design engineers and researchers.
Author(s): Hidenori Tanaka
Publisher: CRC Press
Year: 2023
Language: English
Pages: 112
City: Boca Raton
Cover
Half Title
Title Page
Copyright Page
Table of Contents
Preface
Chapter 1 Introduction
1.1 Background
1.2 Overview
Chapter 2 Theory of elasto-plastic damage mechanics
2.1 Background
2.2 Mechanical characteristics of concrete
2.3 Concept of continuum damage mechanics
2.4 Elasto-plastic damage constitutive laws
Chapter 3 Strength characteristics of concrete by elasto-plastic damage mechanics
3.1 Background
3.2 Static compressive strength
3.2.1 Experimental results
3.2.2 Stress-strain curve for compressive side
3.3 Static tensile strength
3.3.1 Experimental results
3.3.2 Stress-strain curve for tensile side
3.4 Static bending strength
3.4.1 Experimental results
3.4.2 Stress release of crack elements
3.4.3 Analysis of static bending strength
3.5 Bending fatigue strength
3.5.1 Experimental results
3.5.2 Bending fatigue strength analyses
Chapter 4 Structural experiments and numerical analyses
4.1 Background
4.2 Bending fracture of reinforced concrete cantilever beams with carbon fibre sheets
4.2.1 Characteristics of carbon fibre sheets as reinforcing materials
4.2.2 Experimental results
(i) Bending fracture by monotonous loading
(ii) Bending fatigue by cyclic loading
(iii) Bending fracture after pre-fatigues
(iv) Pull-off test
4.2.3 Numerical analysis by the finite element method (FEM)
(i) Identification of stress-and-strain relationships by material tests
(ii) Bending fracture analysis of RC beam reinforced with carbon fibre sheet
(iii) Bending fracture analysis of RC beam with carbon fibre sheet by pre-fatigues
4.3 Adhesion fracture analyses of carbon fibre sheet reinforced concrete
4.3.1 Adhesive fracture analysis by monotonous loading
(i) Preliminary analysis
(ii) Adhesive fracture analysis by the improved equivalent stress
4.3.2 Adhesive fracture analysis by cyclic loading
4.4 Accumulative damage of fibre sheet caused by negative thermal expansion coefficient under cyclic temperature
4.4.1 Cyclic temperature change tests
4.4.2 Relationship between temperature and strains for specimens
4.5 Adhesive characteristics between inorganic injection materials and concrete in the post-installed anchor method
4.5.1 Influence of injectable diameter and length
4.5.2 Improvement of adhesive force by the wedge-shape effect
(i) Adhesion characteristics of injection material and concrete
(ii) Adhesion characteristics of anchor and injection material and concrete
4.5.3 Numerical analyses by return mapping algorithm
4.6 Cumulative damage to interfaces due to repeated temperature loads of two inorganic materials with different thermal expansion coefficients
4.6.1 Experimental method
4.6.2 Experimental results
4.6.3 Effects of roughness
4.7 Shear strength of concrete
4.7.1 Experiments
4.7.2 Analyses
Chapter 5 Applicability of damage mechanics to the concrete field
5.1 Background
5.2 Applicability of damage mechanics
5.2.1 Representative volume elements that define material strength and constitutive laws
5.2.2 Structural members that define structural performance
5.2.3 Time to define performance maintenance
Reference books
Index
