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Table of Contents
Intro; Preface; Acknowledgements; Contents; 1 Introduction to the Application of the Fracture Mechanics in Wood and Bamboo; Abstract; 1.1 Brief History of Fracture Mechanics; 1.2 Mechanics of Materials and Fracture Mechanics; 1.3 Brief Review of the Fracture Mechanics of Wood; 1.3.1 The Strength Prediction of Wood Materials; 1.3.2 The Application of Fracture Mechanics Combined with Acoustic Emission (AE) in the Propagation Mechanism of Wood Crack; 1.3.3 Researches on the Fracture Property of Bamboo; 1.4 The Main Contents of This Book; References.
2 Mechanical Characteristics and Stress-Strain Relationship of Wood StructureAbstract; 2.1 The Mechanical Characteristics of Wood Structure; 2.2 The Stress-Strain Relation of Solid Material; 2.3 Engineering Elastic Constants; 2.4 Engineering Elastic Constants of Wood; 2.5 The Concept of Plane Stress and Plane Strain; 2.5.1 Uniform Thickness Plate and Plane Stress; 2.5.2 Infinite Cylinder and Plane Strain; 2.5.3 The Stress-Strain Relationship in Plane Problem; 2.6 Tests of Wood Elastic Coefficients; 2.6.1 The Application of Electrometric Method on Wood Elastic Coefficients.
2.6.2 The Application of DSCM on Wood Elastic Coefficients2.6.2.1 The Limitation of Elastic Coefficients; References; 3 Fracture of Wood Along Grain; Abstract; 3.1 Introduction; 3.2 Theory of LEFM; 3.2.1 Crack; 3.2.2 Stress Intensity Factor K and K Criterion; 3.2.3 Energy Release Rate G and G Criterion; 3.2.4 Relationship Between K and G; 3.3 Fracture Mechanics of Anisotropic Material; 3.4 The Special Application of LEFM on Wood; 3.5 The Stress Intensity Factor KIC of Wood Fracture Along Grain; 3.5.1 The Methods to Test Stress Intensity Factor.
3.5.2 The {\varvec K}_{{\bf IC}}^{{\bf TL}} of CT Samples with Different Thickness3.5.3 The {\varvec K}_{{\bf IC}}^{{\bf TL}} of WOL Samples with Different Crack Length; 3.6 The Fracture Toughness {\varvec G}_{{\bf IC}}^{{\bf TL}} Along Grain of Wood by Energy Method; 3.6.1 Materials and Samples; 3.6.2 Test and Results; 3.6.3 The Relationship Between Stress Intensity Factor and Energy Release Rate; 3.7 Mode III Fracture Property of Wood Along Grain; 3.7.1 Introduction; 3.7.2 Material and Method; 3.7.3 Test and Results; 3.8 Conclusions; References; 4 Transverse Fracture of Wood; Abstract.
4.1 Introduction4.2 Analysis on Stress Field at Crack Tip; 4.3 The Cracking Direction of Transverse Crack; 4.4 Test of Critical Stress Intensity Factor; 4.4.1 Material and Method; 4.4.2 Test and Results; 4.5 The Influence of Transverse Crack on the Normal Strength of Wood; 4.5.1 Influence of Crack Perpendicular to Grain on MOR of Wood; 4.5.2 Influence of Crack Perpendicular to Grain on Impact Toughness of Wood; 4.5.3 Influence of Crack Perpendicular to Grain on Tensile Strength of Wood; 4.5.4 Discussion.
2 Mechanical Characteristics and Stress-Strain Relationship of Wood StructureAbstract; 2.1 The Mechanical Characteristics of Wood Structure; 2.2 The Stress-Strain Relation of Solid Material; 2.3 Engineering Elastic Constants; 2.4 Engineering Elastic Constants of Wood; 2.5 The Concept of Plane Stress and Plane Strain; 2.5.1 Uniform Thickness Plate and Plane Stress; 2.5.2 Infinite Cylinder and Plane Strain; 2.5.3 The Stress-Strain Relationship in Plane Problem; 2.6 Tests of Wood Elastic Coefficients; 2.6.1 The Application of Electrometric Method on Wood Elastic Coefficients.
2.6.2 The Application of DSCM on Wood Elastic Coefficients2.6.2.1 The Limitation of Elastic Coefficients; References; 3 Fracture of Wood Along Grain; Abstract; 3.1 Introduction; 3.2 Theory of LEFM; 3.2.1 Crack; 3.2.2 Stress Intensity Factor K and K Criterion; 3.2.3 Energy Release Rate G and G Criterion; 3.2.4 Relationship Between K and G; 3.3 Fracture Mechanics of Anisotropic Material; 3.4 The Special Application of LEFM on Wood; 3.5 The Stress Intensity Factor KIC of Wood Fracture Along Grain; 3.5.1 The Methods to Test Stress Intensity Factor.
3.5.2 The {\varvec K}_{{\bf IC}}^{{\bf TL}} of CT Samples with Different Thickness3.5.3 The {\varvec K}_{{\bf IC}}^{{\bf TL}} of WOL Samples with Different Crack Length; 3.6 The Fracture Toughness {\varvec G}_{{\bf IC}}^{{\bf TL}} Along Grain of Wood by Energy Method; 3.6.1 Materials and Samples; 3.6.2 Test and Results; 3.6.3 The Relationship Between Stress Intensity Factor and Energy Release Rate; 3.7 Mode III Fracture Property of Wood Along Grain; 3.7.1 Introduction; 3.7.2 Material and Method; 3.7.3 Test and Results; 3.8 Conclusions; References; 4 Transverse Fracture of Wood; Abstract.
4.1 Introduction4.2 Analysis on Stress Field at Crack Tip; 4.3 The Cracking Direction of Transverse Crack; 4.4 Test of Critical Stress Intensity Factor; 4.4.1 Material and Method; 4.4.2 Test and Results; 4.5 The Influence of Transverse Crack on the Normal Strength of Wood; 4.5.1 Influence of Crack Perpendicular to Grain on MOR of Wood; 4.5.2 Influence of Crack Perpendicular to Grain on Impact Toughness of Wood; 4.5.3 Influence of Crack Perpendicular to Grain on Tensile Strength of Wood; 4.5.4 Discussion.