Modeling of hydrogen embrittlement at steady state at high temperature using a commercial finite element program
- Paper number
IAC-12,C2,7,24.p1,x16039
- Author
Dr. Wissam Bouajila, DLR, German Aerospace Center, Germany
- Coauthor
Dr. Riccius Joerg, DLR, German Aerospace Center, Germany
- Year
2012
- Abstract
Considering a quick set-up of numerical simulations of hydrogen embrittlement, the implementation of hydrogen embrittlement models into commercial finite element programs is an attractive alternative to in-house developed hydrogen embrittlement modeling codes. The purpose of this paper is to present a simple methodology to model hydrogen embrittlement of a structure through the implementation of a hydrogen embrittlement model based on the hydrogen-induced enhanced plasticity (HELP) mechanism into the commercial Finite Element program ANSys. The developed approach considers a hydrogen distribution at steady state conditions for a non-uniform temperature distribution. The accuracy of this approach has been assessed by performing finite element simulations of hydrogen embrittlement of a structure made of Inconel X-750 at high temperature and at steady state.
- Abstract document
- Manuscript document
(absent)