PT Journal
AU Palfi, T
TI Advanced uses of Stress Intensity Factor Tables in PTS Calculations of Nuclear Power Plants
SO Acta Mechanica Slovaca
PY 2021
BP 60
EP 66
VL 25
IS 1
DI 10.21496/ams.2021.016
DE fracture mechanics; stress intensity factors; weight functions; nuclear power plants;
AB This paper introduces an approximation method developed for calculating stress intensity factor for pressure vessels in nuclear power plants. The method is based on weight functions, which has high accuracy among the methods based on crack-free stress calculations. Besides it has the advantage over the weight functions method, it corresponds to the approximation methods can be found in nuclear codes like ASME BPVC [1]. Numerical test calculations are performed to experimentally show the differences of several possible approximation methods. The results show the weighted least squares method using stress intensity factor weight functions, do have the above-mentioned advantages.
ER