Assessment of an improved multiaxial strength theory based on creep-rupture data for type 316 stainless steel
A new multiaxial strength theory incorporating three independent stress parameters was developed and reported by the author in 1984. It was formally incorporated into ASME Code Case N47-29 in 1990. In the earlier paper, the new model was shown to provide significantly more accurate stress-rupture life predictions, than the classical theories of von Mises, Tresca, and Rankine, for the type 304 stainless steel tested at 593{degrees}C under different biaxial stress states. Further assessments for other alloys are showing similar results. The current paper provides additional results for type 316 stainless steel specimens tested at 600{degrees}C under tension-tension and tension-compression stress states and shows 2--3 orders of magnitude reduction in the scatter in predicted versus observed lives. A key feature of the new theory, which incorporates the maximum deviatoric stress, the first invariant of the stress tensor, and the second invariant of the deviatoric stress tensor, is its ability to distinguish between life under tensile versus compressive stress states.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 5404389
- Report Number(s):
- CONF-920631-16; ON: DE92010431
- Resource Relation:
- Conference: American Society of Mechanical Engineers pressure vessel and piping conference, New Orleans, LA (United States), 21-25 Jun 1992
- Country of Publication:
- United States
- Language:
- English
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Assessment of an improved multiaxial strength theory based on creep-rupture data for type 316 stainless steel
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Related Subjects
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
STAINLESS STEEL-304
CREEP
STAINLESS STEEL-316
STRESSES
MATHEMATICAL MODELS
COMPRESSION
RUPTURES
SHEAR
TENSILE PROPERTIES
ALLOYS
AUSTENITIC STEELS
CHROMIUM ALLOYS
CHROMIUM-NICKEL STEELS
CHROMIUM-NICKEL-MOLYBDENUM STEELS
CORROSION RESISTANT ALLOYS
FAILURES
HEAT RESIS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH ALLOY STEELS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MECHANICAL PROPERTIES
MOLYBDENUM ALLOYS
NICKEL ALLOYS
STAINLESS STEELS
STEEL-CR17NI12MO3
STEEL-CR19NI10
STEELS
360103* - Metals & Alloys- Mechanical Properties
990200 - Mathematics & Computers