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Naman Recho, "Fracture Mechanics and Crack Growth (ISTE)"
断裂力学和裂纹扩展(ISTE)
ISBN: 1848213069 | 2012 | PDF | 493 pages | 11 MB
This book presents recent advances related tothe following two topics:
- how mechanical fields close to material orgeometrical singularities such as cracks can be determined;
- how failure criteria can be establishedaccording to the singularity degrees related to these discontinuities.
Concerning the determination of mechanicalfields close to a crack tip, the first part of the book presents most of thetraditional methods in order to classify them into two major categories. Thefirst is based on the stress field, such as the Airy function, and the secondresolves the problem from functions related to displacement fields. Followingthis, a new method based on the Hamiltonian system is presented in greatdetail. Local and energetic approaches to fracture are used in order todetermine the fracture parameters such as stress intensity factor and energyrelease rate.
The second part of the book describesmethodologies to establish the critical fracture loads and the crack growthcriteria. Singular fields for homogeneous and non-homogeneous problems nearcrack tips,
v-notches, interfaces, etc. associated with thecrack initiation and propagation laws in elastic and elastic-plastic media,allow us to determine the basis of failure criteria.
Each phenomenon studied is dealt with accordingto its conceptual and theoretical modeling, to its use in the criteria offracture resistance; and finally to its implementation in terms of feasibilityand numerical application.
Contents
1. Introduction.
Part 1: Stress Field Analysis Close to the CrackTip
2. Review of Continuum Mechanics and the BehaviorLaws.
3. Overview of Fracture Mechanics.
4. Fracture Mechanics.
5. Introduction to the Finite Element Analysisof Cracked Structures.
Part 2: Crack Growth Criteria
6. Crack Propagation.
7. Crack Growth Prediction in Elements of SteelStructures Submitted to Fatigue.
8. Potential Use of Crack Propagation Laws inFatigue Life Design.
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