Centrally cracked specimens of JIS SM58Q and I-IT80 steels were fatigued. The fatigue crack growth rates, da/dn, and the stress intensity threshold levels, AK,, were measured over the range of stress ratio, R, from -1 to 0.8 by the use of an automatic method of continuously decreasing stress intensi
THE INFLUENCE OF STRENGTH AND STRESS RATIO ON SHORT-CRACK THRESHOLDS AND NON-PROPAGATING FATIGUE CRACKS
β Scribed by D. N. Lal
- Book ID
- 109013434
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 653 KB
- Volume
- 16
- Category
- Article
- ISSN
- 8756-758X
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
A new model of fatigue crack propagation is proposed which takes the effect of cyclic stress ratio into account. In the model it is assumed tbat the fatigue cmck propagation rate is proportional to the absorbed hysterisis energy per stress cyck at the tip of a crsck. The energy is calctdated from st
When these data are applied to the formula derived by M. A. Schroedl and C. W. Smith, the stress intensity factor K, can be calculated. Comparing this computed K, with that given by theoretical formula, we have found the error to be within t 5.20%. It is believed that the result of this test has met