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Journal articles
Fracture behaviour of a Fe–22Mn–0.6C–0.2V austenitic TWIP steel
Abstract : The mechanical behaviour of a 22Mn-0.6C-0.2V austenitic TWIP steel has been extensively characterised for a variety of strain ratios (from shear to biaxial stretching) using smooth and notched specimens. A constitutive model involving a non-isotropic yield function together with isotropic and/or kinematic hardening satisfactorily represented the experimental database. It was used to estimate local stress and strain fields and to derive a fracture criterion based on the equivalent stress and Lode angle that were expressed to be consistent with the constitutive equations describing the plastic flow behaviour. A weak dependence on hydrostatic stress further improves prediction of fracture initiation, with an average standard error of less than 5% over ten different mechanical tests.
Cited literature [61 references]
https://hal-mines-paristech.archives-ouvertes.fr/hal-01199574
Contributor : Bibliothèque Umr7633 <>
Submitted on : Tuesday, September 15, 2015 - 3:53:41 PM
Last modification on : Tuesday, May 11, 2021 - 5:38:04 PM
Long-term archiving on: : Tuesday, December 29, 2015 - 7:18:02 AM
Contributor : Bibliothèque Umr7633 <>
Submitted on : Tuesday, September 15, 2015 - 3:53:41 PM
Last modification on : Tuesday, May 11, 2021 - 5:38:04 PM
Long-term archiving on: : Tuesday, December 29, 2015 - 7:18:02 AM
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