A simplified analysis method for complex piping systems in elastic-plastic-creep range
Journal Article
·
· J. Pressure Vessel Technol.; (United States)
The present paper describes a simplified finite element method for analysis of behavior of complex piping systems under elevated temperature. Elastic-plasticcreep deformations of a piping system under a combined moment loading can be analyzed by the present method. The system is idealized by straight and curved beams, and derivation of the finite element equation is based on the force method. The unified constitutive relations are used for creep and plastic behavior, where plastic deformation is treated as a limiting case of creep. The numerical results are compared with previous experimental ones, which verifies the validity of the proposed method. Elastic follow-up problem of a piping system of actually complex configuration is also solved by the present method.
- Research Organization:
- Institute of Engineering Mechanics, University of Tsukuba, Sakura, Ibaraki
- OSTI ID:
- 6352297
- Journal Information:
- J. Pressure Vessel Technol.; (United States), Journal Name: J. Pressure Vessel Technol.; (United States) Vol. 107:2; ISSN JPVTA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
22 GENERAL STUDIES OF NUCLEAR REACTORS
220200* -- Nuclear Reactor Technology-- Components & Accessories
CONFIGURATION
CONTAINERS
CREEP
DEFORMATION
ELASTICITY
FINITE ELEMENT METHOD
MATHEMATICAL MODELS
MECHANICAL PROPERTIES
NUMERICAL SOLUTION
PIPES
PLASTICITY
PRESSURE VESSELS
STRESS ANALYSIS
STRESSES
TEMPERATURE EFFECTS
TENSILE PROPERTIES
220200* -- Nuclear Reactor Technology-- Components & Accessories
CONFIGURATION
CONTAINERS
CREEP
DEFORMATION
ELASTICITY
FINITE ELEMENT METHOD
MATHEMATICAL MODELS
MECHANICAL PROPERTIES
NUMERICAL SOLUTION
PIPES
PLASTICITY
PRESSURE VESSELS
STRESS ANALYSIS
STRESSES
TEMPERATURE EFFECTS
TENSILE PROPERTIES