Crack paths / L.P. Pook.

Format:

Book

Author/Creator:

Pook, L. P.

Series:

Advances in damage mechanics ; v. 2.

Advances in damage mechanics ; v. 2

Language:

English

Subjects (All):

Fracture mechanics.

Physical Description:

154 pages : illustrations ; 24 cm.

Place of Publication:

Southampton : WIT ; Billerica, MA : Computational Mechanics, [2002]

Contents:

Chapter 1 Crack Descriptions 1

1.2 Scales of observation 3

1.3 Crack growth surfaces and crack front families 4

1.4 Crack surface displacement 8

1.5 Volterra distorsioni 8

1.6 Crack growth mode 12

1.7 Fractal geometry 13

1.8 Random process theory 14

Chapter 2 Geometric Constraints 21

2.2 Crack front types 21

2.3 Differential geometry 24

2.4 Corner point singularities 31

2.5 Crack front line tension 34

2.6 Notches and side grooves 35

Chapter 3 Failure Criteria and Crack Tip Plasticity 43

3.2 Static failure criteria 43

3.3 Fatigue failure criteria 46

3.4 Limitations of stress intensity factors 46

3.5 Estimation of plastic zone sizes 48

3.6 Crack tip surface displacements 56

3.7 The J-integral 56

3.8 The HRR singularity 60

Chapter 4 Directional Stability of a Mode I Crack 67

4.2 Definition of crack path stability 67

4.3 The T-stress criterion 68

4.4 A T-stress based stability parameter 70

4.5 Practical applications 72

Chapter 5 Fatigue Crack Growth from an Initial Mixed Modes I and II Crack 79

5.2 Limitations of analysis 80

5.3 Initial path of a Mode I branch fatigue crack 84

5.4 Branch crack stress intensity factors 87

5.5 Maximum tangential stress criterion 90

5.6 Mode I fatigue crack paths and predictions 91

5.7 Shear dominated fatigue crack growth 92

5.8 Failure mechanism map 95

5.9 Non proportional loadings 96

Chapter 6 Static Crack Growth from an Initial Mixed Modes I and II Crack 105

6.2 Criteria based on elastic crack tip stress fields 106

6.3 Criteria based on crack tip surface displacements 113

6.4 Criteria based on the J-integral and the T*[subscript [varepsilon] integral 115

6.5 Crack growth under compression 117

Chapter 7 Some Aspects of Crack Growth in Three Dimensions 123

7.2 Twist cracks 123

7.3 Oscillating crack front families 128

7.4 Slant crack growth in thin sheets 130

7.5 Spot welds 136

7.6 Hydraulic fracturing 137

7.7 Fatigue crack path prediction 139.

Notes:

Includes bibliographical references and index.

ISBN:

1853129275

OCLC:

48930867