Modeling of crack behavior in austenitic steel influenced by martensitic phase transformation
Författare
Summary, in English
A thermomechanically coupled constitutive model for finite strain elasto-plasticity is
formulated and numerically implemented. The model gives a physically sound description of an initially austenitic material influenced by martensitic phase transformation. The heat dissipated by plastic slip deformation and by phase transformation is allowed to influence the material behavior and appears as a key influencing factor on the growth of the martensitic phase. The model is calibrated using a common stainless steel as prototype material, allowing numerical simulations of crack propagation to be performed. Alterations of the crack growth behavior are observed as different simulation scenarios are compared.
formulated and numerically implemented. The model gives a physically sound description of an initially austenitic material influenced by martensitic phase transformation. The heat dissipated by plastic slip deformation and by phase transformation is allowed to influence the material behavior and appears as a key influencing factor on the growth of the martensitic phase. The model is calibrated using a common stainless steel as prototype material, allowing numerical simulations of crack propagation to be performed. Alterations of the crack growth behavior are observed as different simulation scenarios are compared.
Avdelning/ar
Publiceringsår
2011
Språk
Engelska
Sidor
637-640
Publikation/Tidskrift/Serie
Key Engineering Materials
Volym
452-453
Länkar
Dokumenttyp
Artikel i tidskrift
Förlag
Trans Tech Publications
Ämne
- Mechanical Engineering
Nyckelord
- Crack propagation
- Finite strains
- Austenite
- Stainless steel
- Martensite
- Phase transformation
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 1013-9826