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Comparisons of inelastic J and J* evaluations for the blunt crack and the sharp crack models. [LMFBR] [electronic resource].

Published
Argonne, Ill. : Argonne National Laboratory, 1984.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
Pages: 6 : digital, PDF file
Additional Creators
Argonne National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Concrete cracking is an important consideration in assessing the safety of a liquid metal fast breeder reactor (LMFBR) plant under a hypothetical accident where molten metal may come into contact with concrete structures. At the present time, several options in modeling concrete cracking have been pursued in an ongoing research program at Argonne National Laboratory which encompasses many aspects of high temperature behavior of concrete. Main emphasis is currently given to the blunt crack model where the crack is assumed to be uniformly distributed throughout the area of an element, though the sharp crack model is still kept as an alternative option where the crack surface is treated as the boundary of the finite element mesh. Several crack propagation criteria have been considered. Among these is the development of the J-integral approach with the blunt crack model. Numerical results were compared with those of the sharp crack model and found to be in good agreement for the elastic problem of a mode I crack. In this paper, the J-integral approach is extended to the post yield regime. To examine the path independency, the J* integral option is added to the finite element code. Numerical results for the J and J* integral formulations are given for a three point bending specimen loaded beyond the yield point.
Report Numbers
E 1.99:conf-840833-6
conf-840833-6
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Note
Published through SciTech Connect.
01/01/1984.
"conf-840833-6"
"DE84011734"
5. American Society of Civil Engineers/Engineering Mechanics specialty conference, Laramie, WY, USA, 1 Aug 1984.
Kennedy, J.M.; Pan, Y.C.; Marchertas, A.H.
Funding Information
W-31-109-ENG-38
View MARC record | catkey: 14369631