L. DELGADO MORALES Author informationContact: leonel.delgado@uach.clUniversidad Austral de ChileUniversidade de Brasília UNB , L. Malcher Author informationContact: malcher@unb.br
This work presents a new fracture indicator, which incorporates the effects of the normalized third invariant of the deviatoric stress tensor and the equivalent plastic strain, in its formulation, The proposed indicator is also coupled with the post-processing step of the Gao constitutive model. The tests are applied to specimens manufactured from the AISI 4340 alloy in two heat treatment states. To compare the behavior of the material under different ductility conditions, numerical tests are performed for different stress states. The new fracture indicator presents satisfactory results when observing the forecast of the displacement in the fracture and the levels of reaction force, for the evaluated specimens used in the study.
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Published on 27/02/22Submitted on 27/02/22
Volume IS06 - Continuum Damage and Cyclic Plasticity in Fatigue Life Estimate, 2022DOI: 10.23967/complas.2021.025Licence: CC BY-NC-SA license
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