Thermo-mechanically coupled model of diffusionless phase transformation in austenitic steel
(2010) In International Journal of Solids and Structures 47(11-12). p.1580-1591- Abstract
- Abstract in Undetermined
A constitutive model of thermo-mechanically coupled finite strain plasticity considering martensitic phase transformation is presented. The model is formulated within a thermodynamic framework, giving a physically sound format where the thermodynamic mechanical and chemical forces that drive the phase transformation are conveniently identifiable. The phase fraction is treated through an internal variable approach and the first law of thermodynamics allows a consistent treatment of the internal heat generation due to dissipation of inelastic work. The model is calibrated against experimental data on a Ni-Cr steel of AISi304-type, allowing illustrative simulations to be performed. It becomes clear that the... (More) - Abstract in Undetermined
A constitutive model of thermo-mechanically coupled finite strain plasticity considering martensitic phase transformation is presented. The model is formulated within a thermodynamic framework, giving a physically sound format where the thermodynamic mechanical and chemical forces that drive the phase transformation are conveniently identifiable. The phase fraction is treated through an internal variable approach and the first law of thermodynamics allows a consistent treatment of the internal heat generation due to dissipation of inelastic work. The model is calibrated against experimental data on a Ni-Cr steel of AISi304-type, allowing illustrative simulations to be performed. It becomes clear that the thermal effects considered in the present formulation have a significant impact on the material behavior. This is seen, not least, in the effects found on forming limit diagrams, also considered in the present paper. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1584074
- author
- Hallberg, Håkan
LU
; Håkansson, Paul LU and Ristinmaa, Matti LU
- organization
- publishing date
- 2010
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Phase transformation, Thermo-mechanical processes, Finite strain plasticity, AIS1304, Forming limit diagram, FLD
- in
- International Journal of Solids and Structures
- volume
- 47
- issue
- 11-12
- pages
- 1580 - 1591
- publisher
- Elsevier
- external identifiers
-
- wos:000277527600012
- scopus:77950204826
- ISSN
- 0020-7683
- DOI
- 10.1016/j.ijsolstr.2010.02.019
- language
- English
- LU publication?
- yes
- id
- fbef6972-a35f-4177-aa00-caa06e2ec347 (old id 1584074)
- date added to LUP
- 2016-04-01 13:10:08
- date last changed
- 2022-01-27 17:45:22
@article{fbef6972-a35f-4177-aa00-caa06e2ec347, abstract = {{Abstract in Undetermined<br/>A constitutive model of thermo-mechanically coupled finite strain plasticity considering martensitic phase transformation is presented. The model is formulated within a thermodynamic framework, giving a physically sound format where the thermodynamic mechanical and chemical forces that drive the phase transformation are conveniently identifiable. The phase fraction is treated through an internal variable approach and the first law of thermodynamics allows a consistent treatment of the internal heat generation due to dissipation of inelastic work. The model is calibrated against experimental data on a Ni-Cr steel of AISi304-type, allowing illustrative simulations to be performed. It becomes clear that the thermal effects considered in the present formulation have a significant impact on the material behavior. This is seen, not least, in the effects found on forming limit diagrams, also considered in the present paper.}}, author = {{Hallberg, Håkan and Håkansson, Paul and Ristinmaa, Matti}}, issn = {{0020-7683}}, keywords = {{Phase transformation; Thermo-mechanical processes; Finite strain plasticity; AIS1304; Forming limit diagram; FLD}}, language = {{eng}}, number = {{11-12}}, pages = {{1580--1591}}, publisher = {{Elsevier}}, series = {{International Journal of Solids and Structures}}, title = {{Thermo-mechanically coupled model of diffusionless phase transformation in austenitic steel}}, url = {{https://lup.lub.lu.se/search/files/3199942/4187057.pdf}}, doi = {{10.1016/j.ijsolstr.2010.02.019}}, volume = {{47}}, year = {{2010}}, }