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  • Halilovic, Armin E., et al. (author)
  • A conceptual modeling approach for investigating multiple failure mechanisms in the environmentally driven ductile-to-brittle transition region
  • Review (other academic/artistic)abstract
    • A continuum modeling approach that considers two separate failure mechanisms of steels subjected to hydrogen embrittlement is proposed based on experimental observations. The brittle failure is modeled using a cohesive zone approach, where both the cohesive strength and the fracture energy are degraded when exposed to hydrogen. The ductile failure is modeled using the Gurson model that includes a strain driven nucleation of void. Here, the nucleation model also incorporates hydrogen degradation where an increase in hydrogen is assumed to increase the volume of nucleated voids. This modeling approach is divided into two parts where the first step is to utilize a conceptual degradation of both failure modes and calibrate modeling parameters, and the second part incorporates a coupled diffusion-mechanical approach.
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Type of publication
review (1)
Type of content
other academic/artistic (1)
Author/Editor
Faleskog, Jonas (1)
Dahlberg, Carl F. O. ... (1)
Efsing, Pål, 1965- (1)
Elmukashfi, Elsiddig (1)
Halilovic, Armin E. (1)
University
Royal Institute of Technology (1)
Language
English (1)
Research subject (UKÄ/SCB)
Engineering and Technology (1)

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