Finite-element blunt-crack propagation: a modified J-integral approach. [LMFBR]
Conference
·
OSTI ID:6060727
In assessing the safety of a liquid metal fast breeder reactor (LMFBR), a major concern is the behavior of concrete structures subjected to high temperatures. The potential of concrete cracking is an important parameter which could significantly influence the safety assessment of thermally attacked concrete. A new modified J-integral approach for the blunt crack model has been derived to provide a general procedure to accurately predict the direction of crack growth. This formulation has been incorporated into the coupled heat transfer-stress analysis finite element code TEMP-STRESS. A description of the formulation is presented in this paper. Results for the problems of a Mode I and mixed mode crack in a plate using regular and slanted meshes subjected to uniaxial and shear loading are presented.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 6060727
- Report Number(s):
- CONF-830805-24; ON: DE83010579
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
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210500 -- Power Reactors
Breeding
22 GENERAL STUDIES OF NUCLEAR REACTORS
220900* -- Nuclear Reactor Technology-- Reactor Safety
36 MATERIALS SCIENCE
360603 -- Materials-- Properties
ACCIDENTS
BREEDER REACTORS
BUILDING MATERIALS
COMPUTER CALCULATIONS
CONCRETES
CONTAINMENT
CONTAINMENT BUILDINGS
CRACKS
EPITHERMAL REACTORS
FAST REACTORS
FBR TYPE REACTORS
FINITE ELEMENT METHOD
FRACTURE PROPERTIES
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
MATERIALS
MECHANICAL PROPERTIES
NUMERICAL SOLUTION
REACTOR ACCIDENTS
REACTOR MATERIALS
REACTOR SAFETY
REACTORS
SAFETY
STRESSES
THERMAL STRESSES