Simplified inelastic analysis procedure to evaluate a butt-welded elbow end
In a thin-walled piping network, the end of an elbow welded to a straignt pipe constitutes one of the highly stressed cross-sections that require structural evaluation. Explicit rules are not provided in the ASME Code for structural evaluation of the elbow ovalization and fabrication effects at the welded end. This paper presents a conservative semi-analytical procedure that can be used with simplified inelastic analysis to evaluate the elbow cross section welded to the straight pipe. The concept of carry-over factors is used to obtain ovalization stresses or strains at the elbow end. The stresses introduced by material and geometric nonuniformities in the fabrication process are then added to the ovalization stresses to complete structural evluation of the girth butt-welded elbow joint.
- Research Organization:
- Westinghouse Electric Corp., Madison, PA (USA). Advanced Reactors Div.
- DOE Contract Number:
- AC15-76CL02395
- OSTI ID:
- 6513565
- Report Number(s):
- CONF-810625-16
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
210500* -- Power Reactors
Breeding
BREEDER REACTORS
CLINCH RIVER BREEDER REACTOR
COOLING SYSTEMS
ENERGY SYSTEMS
EPITHERMAL REACTORS
FABRICATION
FAST REACTORS
FBR TYPE REACTORS
JOINTS
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
PIPE JOINTS
POWER REACTORS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTORS
SODIUM COOLED REACTORS
STRAINS
STRESS ANALYSIS
WELDED JOINTS