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Stress analysis of the LOFT modular DTT flowmeter for LOCE transients (L1-5 and L2-4)

Technical Report ·
DOI:https://doi.org/10.2172/6559030· OSTI ID:6559030
An analysis is presented of combined stresses in the LOFT Modular DTT for specified temperature gradients. All combined stress intensities are shown to stay within applicable allowable stress intensities. A fatigue analysis is also presented which indicates that the LOFT Modular DTT will withstand 70,000 blowdown cycles. The LOFT Modular DTT is shown to meet the Class 1 stress requirments. A stress analysis of the tab region of the newly designed MDTT tab-type shroud is included. This stress analysis shows that the Class 1 stress requirements are met by the tab-type MDTT shroud design and that this design imposes no fatigue life limitation on the MDTT.
Research Organization:
Idaho National Engineering Lab., Idaho Falls (USA)
DOE Contract Number:
EY-76-C-07-1570
OSTI ID:
6559030
Report Number(s):
LTR-141-77(Suppl.1); RE-A-77-118(Suppl.1)
Country of Publication:
United States
Language:
English