Comparison of static and dynamic strength and J-R curves of various piping materials from the IPIRG-1 program☆

Abstract Material property tests were conducted on nuclear piping steels at 288°C at both quasi-static and dynamic displacement rates. The dynamic rates were similar to those estimated to occur in pipe tests that simulate seismic loading. The results suggest that quasi-static material property data are adequate for in-service flaw evaluation and leak-before-break analyses for stainless-steel pipes. However, dynamic strength and toughness data appear to be needed for such evaluations in some carbon-steel pipes.