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أخوانى فى الله أحضرت لكم كتاب The Practical Use of Fracture Mechanics David Broek
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Contents Preface v Notice vn Chapter 1 . INTRODUCTION 1 . 1 . Fracture control 1.2. The two objectives of damage tolerance analysis 1.3. Crack growth and fracture 1.4. Damage tolerance and fracture mechanics 1.5. The need for analysis: purpose of this book 1.6. Exercises Chapter 2. EFFECTS OF CRACKS AND NOTCHES: COLLAPSE 2.1. Scope 2.2. An interrupted load path 2.3. Stress concentration factor 2.4. State of stress at a stress concentration 2.5. Yielding at a notch 2.6. Plastic collapse at a notch 2.7. Fracture at notches: brittle behavior 2.8. Measurement of collapse strength 2.9. Exercises Chapter 3. LINEAR ELASTIC FRACTURE MECHANICS 3.1. Scope 3.2. Stress at a crack tip 3.3. General form of the stress intensity factor 3.4. Toughness 3.5. Plastic zone and stresses in plane stress and plane strain 3.6. Thickness dependence of toughness 3.7. Measurement of toughness 3.8. Competition with plastic collapse 3.9. The energy criterion 3.10. The energy release rate 3.11. The meaning of the energy criterion 3.12. The rise in fracture resistance: redefinition of toughness 3.13. Exercises Chapter 4. ELASTIC-PLASTIC FRACTURE MECHANICS 88 4.1. Scope 4.2. The energy criterion for plastic fracture 4.3. The fracture criterion 4.4. The rising fracture energy 4.5. The residual strength diagram in EPFM: collapse 4.6. The measurement of the toughness in EPFM 4.7. The parameters of the stress-strain curve 4.8. The /i-functions 4.9. Accuracy 4.10. Historical development of J 4.11. Limitations of EPFM 4.12. CTOD measurements 4.13. Exercises Chapter 7. DATA INTERPRETATION AND USE 7.1. Scope 7.2. Plane strain fracture toughness 7.3. Plane stress and transitional toughness, R-curve 7.4. Toughness in terms of J and JR 7.5. Estimates of toughness 7.6. General remarks on fatigue rate data 7.7. Fitting the da/dN data 7.8. Dealing with scatter in rate data 7.9. Accounting for the environmental effect 7.10. Obtaining retardation parameters 7.11. Exercises 121 Chapter 8. GEOMETRY FACTORS 8.1. Scope 8.2. The reference stress 8.3. Compounding 8.4. Superposition 8.5. A simple method for asymmetric loading cases 8.6. Some easy guesses 8.7. Simple solutions for holes and stress concentrations 8.8. Simple solutions for irregular stress distributions 8.9. Finite element analysis 8.10. Simple solutions for crack arresters and multiple elements 8.11. Geometry factors for elastic-plastic fracture mechanics 8.12. Exercises Chapter 5. CRACK GROWTH ANALYSIS CONCEPTS 123 5.1. Scope 5.2. The concept underlying fatigue crack growth 5.3. Measurement of the rate function 5.4. Rate equations 5.5. Constant amplitude crack growth in a structure 5.6. Load interaction: Retardation 5.7. Retardation models 5.8. Crack growth analysis for variable amplitude loading 5.9. Parameters affecting fatigue crack growth rates 5.10. Stress corrosion cracking 5.11. Exercises Chapter 9. SPECIAL SUBJECTS 9.1. Scope 9.2. Behavior of surface flaws and corner cracks 9.3. Break through: leak-before-break 9.4. Fracture arrest 9.5. Multiple elements, multiple cracks, changing geometry 9.6. Stop holes, cold worked holes and interference fasteners Residual stresses in general 9.8. Other loading modes: mixed mode loading 9.9. Composites 9.10. Exercises Chapter 6. LOAD SPECTRA AND STRESS HISTORIES 6.1. Scope 6.2. Types of stress histories 6.3. Obtaining load spectra 6.4. Exceedance diagram 6.5. Stress history generation 6.6. Clipping 6.7. Truncation 6.8. Manipulation of stress history 6.9. Environmental effects 6.10. Standard spectra 6.11. Exercises Chapter 10. ANALYSIS PROCEDURES 10.1. Scope 10.2. Ingredients and critical locations Chapter 14. APPLICATIONS 14.1. Scope 14.2. Storage tank (fictitious example) Fracture arrest in ships 14.4. Piping in chemical plant (fictitious example) 14.5. Fatigue cracks in railroad rails 14.6. Underwater pipeline 14.7. Closure 10.3. Critical locations and flaw assumptions 334 10.4. LEFM versus EPFM 10.5. Residual strength analysis 10.6. Use of R-curve and JR-curve 10.7. Crack growth analysis 10.8. Exercises Chapter II. FRACTURE CONTROL 362 11.1. Scope 11.2. Fracture control options 11.3. The probability of missing the crack 11.4. The physics and statistics of crack detection 11.5. Determining the inspection interval 11.6. Fracture control plans 11.7. Repairs 11.8. Statistical aspects 11.9. The cost of fracture and fracture control 11.10. Exercises 362 Chapter 15. SOLUTIONS TO EXERCISES 485 373 SUBJECT INDEX 515 Chapter 12. DAMAGE TOLERANCE SUBSTANTIATION 391 12.1. Scope 12.2. Objectives 12.3. Analysis and damage tolerance substantiation 12.4. Options to improve damage tolerance 12.5. Aircraft damage tolerance requirements 12.6. Other requirements 12.7. Flaw assumptions 12.8. Sources of error and safety factors 12.9. Misconceptions 12.10. Outlook 12.11. Exercises Chapter 13. AFTER THE FACT: FRACTURE MECHANICS AND FAILURE ANALYSIS 424 13.1. Scope 424 13.2. The cause of service fractures 13.3. Fractography 13.4. Features of use in fracture mechanics analysis 13.5. Use of fracture mechanics 13.6. Possible actions based on failure analysis 13.7. Exercises
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