Four lectures on fatigue crack growth: I. Fatigue crack growth and fracture mechanics
โ Scribed by J. Schijve
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 922 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0013-7944
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โฆ Synopsis
Abrtrrt-Aspects of the tccbnical meaning of fatigue considerations in practice are indicated. The fatigue life is subdivided into a crack nucleations period aod a crack propagation period. The siguiticat~ce of recog&iag these periods for practical problems is illustmtcd by several ~xamptes. The similarity approach for carrel&g fat& data is intro&c&. The meanins of the stress intensity factor for fatigoe crack growth is d&cussed.
๐ SIMILAR VOLUMES
Ab&act-Two prediction techniques are introduced, (1) cycle-by-cycle prediction and (2) prediction by correlation. Attention is paid to the problem of describing varhbk-amplitude loading in terms of load cycles. Aspects of fatigtue damage am reviewed with reference to in&action effects and weakoesses
A large amount of previously published fatigue crack growth data obtained from 10in. wide centre-cracked sheet specimens of various materials has been re-analysed in terms of the range of stress intensity factor (AK) and the results presented as master curves of crack growth rate against AK. In addi
A probabilistic analysis of the fatigue crack growth, fatigue life and reliability of a structural or mechanical component is presented on the basis of fracture mechanics and theory of random processes. The material resistance to fatigue crack growth and the time-history of the stress are assumed to
The theoretical study is advanced to describe quantitatively the crack propagation under cyclic loads. The main assumptions accepted are: (a) a crack grows by loading during every cycle, and (b) the specific dissipation energy is a material constant. The latter contains. the known concept by Irwin a