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U.S. Department of Energy
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Evaluation of clamp effects on LMFBR piping systems

Conference ·
OSTI ID:5261852
Loop-type liquid metal breeder reactor plants utilize thin-wall piping to mitigate through-wall thermal gradients due to rapid thermal transients. These piping loops require a support system to carry the combined weight of the pipe, coolant and insulation and to provide attachments for seismic restraints. The support system examined here utilizes an insulated pipe clamp designed to minimize the stresses induced in the piping. To determine the effect of these clamps on the pipe wall a non-linear, two-dimensional, finite element model of the clamp, insulation and pipe wall was used to determine the clamp/pipe interface load distributions which were then applied to a three-dimensional, finite element model of the pipe. The two-dimensional interaction model was also utilized to estimate the combined clamp/pipe stiffness.
Research Organization:
Swanson Engineering Associates Corp., McMurray, PA (USA)
DOE Contract Number:
AC15-76CL02395
OSTI ID:
5261852
Report Number(s):
CONF-800804-2
Country of Publication:
United States
Language:
English