Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Multiaxial creep-fatigue life analysis using strainrange partitioning

Conference ·
OSTI ID:7126649
Strain-Range Partitioning is a recently developed method for treating creep-fatigue interaction at elevated temperature. Most of the work to date has been on uniaxially loaded specimens, whereas practical applications often involve load multiaxiality. This paper shows how the method can be extended to treat multiaxiality through a set of rules for combining the strain components in the three principal directions. Closed hysteresis loops, as well as plastic and creep strain ratcheting, are included. An application to hold-time tests in torsion is used to illustrate the approach.
Research Organization:
Case Western Reserve Univ., Cleveland, OH (USA); National Aeronautics and Space Administration, Cleveland, OH (USA). Lewis Research Center
Sponsoring Organization:
US Energy Research and Development Administration (ERDA)
DOE Contract Number:
W-7405-ENG-26
OSTI ID:
7126649
Report Number(s):
CONF-761107-3
Country of Publication:
United States
Language:
English