PT  - JOURNAL ARTICLE
AU  - Pálfi, Tamás
TI  - Advanced uses of Stress Intensity Factor Tables in PTS Calculations of Nuclear Power Plants
DP  - 2021 Mar 26
TA  - Acta Mechanica Slovaca
PG  - 60--66
VI  - 25
IP  - 1
AID - 10.21496/ams.2021.016
IS  - 13352393
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.