Numerical investigation of the effects of various factors on stress-strain distributions in SCC susceptibility evaluation tests using U-bend specimens

Nomura, Yusei*; Okano, Shigetaka*; Aoki, So  ; Kadoi, Kota*; Mochizuki, Masahito*

In order to understand the dynamic state of a constant strain test for SCC susceptibility assessment, a finite element analysis was used to simulate the specimen preparation process. A U-bend specimen was used as the constant strain test, and it was found that the tendency of the stress-strain distribution at the top of the U-bend specimen may differ depending on the specimen size and the radius of curvature of the U-bend. A quantitative evaluation of these dynamic states was attempted based on strain formulae.