LIU Chang1 LIANG Xingyun2 QIAN Hao1 YAO Weida1 1. Calculation and evaluation mythology of the flawed pipe and the compute program development[J]. Nuclear techniques, 2013, 36(4): 040625
LIU Chang1 LIANG Xingyun2 QIAN Hao1 YAO Weida1 1. Calculation and evaluation mythology of the flawed pipe and the compute program development[J]. Nuclear techniques, 2013, 36(4): 040625 DOI: 10.11889/j.0253-3219.2013.hjs.36.040625.
Background: The crack will grow gradually under alternating load for a pressurized pipe
whereas the load is less than the fatigue strength limit.Purpose: Both calculation and evaluation methodology for a flawed pipe that have been detected during in-service inspection is elaborated here base on the Elastic Plastic Fracture Mechanics(EPFM) criteria.Methods: In the compute
the depth and length interaction of a flaw has been considered and a compute program is developed per Visual C++.Results: The fluctuating load of the Reactor Coolant System transients
the initial flaw shape
the initial flaw orientation are all accounted here.Conclusions: The calculation and evaluation methodology here is an important basis for continue working or not.