Accession Number:

AD0266543

Title:

LOW-CYCLE FATIGUE OF METALS. LITERATURE REVIEW

Descriptive Note:

Progress rept. no. 1,

Corporate Author:

SHIP STRUCTURE COMMITTEE WASHINGTON DC

Personal Author(s):

Report Date:

1961-10-31

Pagination or Media Count:

61.0

Abstract:

Evaluation of data on low-cycle fatigue of metals based on type of test, cyclic rate, stress concentration, crack propagation, material property change and method of analysis indicates that a there is presently no general analysis applicable to all low-cycle fatigue test conditions b the shape of the load-time curve is important in analyzing low-cycle fatigue test c the extent of the time effect on low-cycle fatigue behavior, particularly with respect to creep and crack propagation, remains to be explored d use of strain rather than stress is more desirable in low-cycle fatigue studies of coupon-type specimens because of the plastic deformation that takes place during such tests and e the fatigue hypotheses based on strain, although developed from limited data, exhibit good agreement with the test results and show promise of providing a good indication of low-cycle fatigue behavior for selected loading condi ions. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE