Creep-fatigue damage under multiaxial conditions. [LMFBR]

Technical Report · Tue Feb 01 04:00:00 EST 1977

OSTI ID:7216055

Lobitz, D W; Nickell, R E

ASME Code rules for design against creep-fatigue damage for Class 1 nuclear components operating at elevated temperatures are currently being studied by ASME working groups and task forces with a view toward major modification. In addition, the design rules being developed for Class 2 and Class 3 components would be affected by any major modifications of Class 1 Rules. The report represents an attempt to evaluate the differences between two competing procedures--linear damage summation and strainrange partitioning--for multiaxial stress conditions. A modified version of strainrange partitioning is also developed to alleviate some limitations on nonproportional loading.

• Research Organization: Sandia Labs., Albuquerque, NM (USA)
• DOE Contract Number: EY-76-C-04-0789
• OSTI ID: 7216055
• Report Number(s): SAND-76-0720; NUREG-0180
• Country of Publication: United States
• Language: English

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