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Analysis of concrete containment structures under severe accident loading conditions
One of the areas of current interest in the nuclear power industry is the response of containment buildings to internal pressures that may exceed design pressure levels. Evaluating the response of structures under these conditions requires computing beyond design load to the ultimate load of the containment. For concrete containments, this requirement means computing through severe concrete cracking and into the regime of wide-spread plastic rebar and/or tendon response. In this regime of material response, an implicit code can have trouble converging. This paper describes some of the author's experiences with Version 5.2 of ABAQUS Standard and the ABAQUS concrete model in computing the axisymmetric response of a prestressed concrete containment to ultimate global structural failure under high internal pressures. The effects of varying the tension stiffening parameter in the concrete material model and variations of the parameters for the CONTROLS option are discussed.
Analysis of concrete containment structures under severe accident loading conditions
One of the areas of current interest in the nuclear power industry is the response of containment buildings to internal pressures that may exceed design pressure levels. Evaluating the response of structures under these conditions requires computing beyond design load to the ultimate load of the containment. For concrete containments, this requirement means computing through severe concrete cracking and into the regime of wide-spread plastic rebar and/or tendon response. In this regime of material response, an implicit code can have trouble converging. This paper describes some of the author's experiences with Version 5.2 of ABAQUS Standard and the ABAQUS concrete model in computing the axisymmetric response of a prestressed concrete containment to ultimate global structural failure under high internal pressures. The effects of varying the tension stiffening parameter in the concrete material model and variations of the parameters for the CONTROLS option are discussed.
Analysis of concrete containment structures under severe accident loading conditions
V. L. Porter (author)
1993
15 pages
Report
No indication
English
Radiation Shielding, Protection, & Safety , Reactor Engineering & Nuclear Power Plants , Construction Materials, Components, & Equipment , Containment Systems , Nuclear Power Plants , Concretes , Design Basis Accidents , Finite Element Method , Mathematical Models , Pressure Dependence , Reactor Safety , Strains , Stress Analysis , EDB/220900 , EDB/990200
Fragility analysis of prestressed concrete containment subjected to severe accident conditions
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