Nonlinear, inelastic fast reactor subassembly interaction analyses

Conference · Sat Jan 01 00:00:00 EST 1983

OSTI ID:5258333

Sutherland, W H; Bard, F E

Liquid Metal Fast Breeder Reactor (LMFBR) core structural design is complicated by the trade-offs associated with keeping the subassemblies closely packed for the neutronic considerations and accommodating the volumetric changes associated with irradiation swelling. The environmental variation across the reactor core results in temperature and neutron flux gradients across the subassemblies which in turn cause the subassemblies to bow as well as dilate and grow volumetrically. These deformations in a tightly packed reactor core cause the subassemblies to interact and can potentially result in excessive withdrawal loads during the refueling operations. ABADAN, a general purpose, nonlinear, inelastic, multi-dimensional finite element structural analysis computer code, was developed for the express purpose of solving large nonlinear problems as typified by the above interaction problems. For the subassembly interaction problem ABADAN has been applied to the solution of an interacting radial row of Fast Flux Test Facility (FFTF) fuel assemblies.

• Research Organization: Hanford Engineering Development Lab., Richland, WA (USA)
• DOE Contract Number: AC06-76FF02170
• OSTI ID: 5258333
• Report Number(s): HEDL-SA-2758; CONF-830805-76; ON: DE84006077
• Resource Relation: Conference: 7. international conference on structural mechanics in reactor technology, Chicago, IL, USA, 22 Aug 1983
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
FFTF REACTOR
FUEL ASSEMBLIES
DEFORMATION
PHYSICAL RADIATION EFFECTS
THERMAL STRESSES
LMFBR TYPE REACTORS
COMPUTER CALCULATIONS
FINITE ELEMENT METHOD
BREEDER REACTORS
EPITHERMAL REACTORS
FAST REACTORS
FBR TYPE REACTORS
LIQUID METAL COOLED REACTORS
NUMERICAL SOLUTION
RADIATION EFFECTS
REACTORS
RESEARCH AND TEST REACTORS
RESEARCH REACTORS
SODIUM COOLED REACTORS
STRESSES
TEST REACTORS
210500* - Power Reactors
Breeding
220600 - Nuclear Reactor Technology- Research
Test & Experimental Reactors