AUTHOR(S):

Vladimir Astafev

TITLE

Modeling of Hydrogen Embrittlement of Metals in Wet H2S Containing Environments

KEYWORDS

hydrogen embrittlement, damage, metals, tensile strength, delayed fracture

ABSTRACT

Governing equations for elastic-plastic material describing the damage accumulation and failure under hydrogen embrittlement (HE) conditions are presented. Scalar damage parameter and damage evolution equation are proposed. The proposed governing equations describe such features of HE as threshold stress, below which no failure occurs; the change of failure surface mode during HE; the delayed behavior of failure, the existence of threshold stress intensity factor, etc. The determination of material constants from available experimental data is proposed.

Cite this paper

Vladimir Astafev. (2016) Modeling of Hydrogen Embrittlement of Metals in Wet H2S Containing Environments. International Journal of Theoretical and Applied Mechanics, 1, 65-70