Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 08, 2016 - October 10, 2016
In order to evaluate hydrogen concentration under mechanical loading, a stress-hydrogen diffusion or distribution coupling computing method was developed based on Oriani's theory. The method was implemented to commercial finite element (FE) analysis software, Abaqus, with its user subroutine UMAT and UMATHT. This method was applied to analyze concentration of hydrogen near a blunting crack tip. It is shown that the results of hydrogen distribution were nearly identical compared to the Krom's study, and it is also shown that hydrogen concentration was higher supposing high strength steels.
