Research output: Contribution to journal › Article › peer-review
Prediction of the Stabilized Plastic Strain Limit in Steels under Cyclic Loading. / Selyutina, N.S.; Arutyunyan, A.R.; Petrov, Y.V.
In: International Journal of Plasticity, Vol. 202, 104728, 01.07.2026.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Prediction of the Stabilized Plastic Strain Limit in Steels under Cyclic Loading
AU - Selyutina, N.S.
AU - Arutyunyan, A.R.
AU - Petrov, Y.V.
PY - 2026/7/1
Y1 - 2026/7/1
N2 - The phenomenon of plastic deformation stabilization under cyclic loading, characterized by the attainment of a steady-state plastic strain amplitude, is considered. Cyclic tests are conducted on Grade 20 steel specimens under conditions of repeated loading, when the stress cyclically varied from zero to maximum tensile stress and cycle asymmetry coefficient is equal to zero, at various stress amplitudes (375, 400, 425, 440, 475, 485, and 490 MPa). A limiting case of stabilization is identified, where the material transitions to predominantly elastic behavior following accumulated plastic deformation. For the first time, a new constitutive model is proposed to predict this effect, which accounts for relaxation phenomena and is based on material-invariant parameters. The model demonstrates accurate predictive capability for the transition to a stabilized hysteresis response and the ultimate state of deformation, as confirmed by experimental validation.
AB - The phenomenon of plastic deformation stabilization under cyclic loading, characterized by the attainment of a steady-state plastic strain amplitude, is considered. Cyclic tests are conducted on Grade 20 steel specimens under conditions of repeated loading, when the stress cyclically varied from zero to maximum tensile stress and cycle asymmetry coefficient is equal to zero, at various stress amplitudes (375, 400, 425, 440, 475, 485, and 490 MPa). A limiting case of stabilization is identified, where the material transitions to predominantly elastic behavior following accumulated plastic deformation. For the first time, a new constitutive model is proposed to predict this effect, which accounts for relaxation phenomena and is based on material-invariant parameters. The model demonstrates accurate predictive capability for the transition to a stabilized hysteresis response and the ultimate state of deformation, as confirmed by experimental validation.
KW - Accumulated strain
KW - Cyclic loading
KW - Stable cycle
KW - Steel 20
KW - Structural-temporal approach
UR - https://www.mendeley.com/catalogue/5692ec83-c759-34f8-a3ca-08202c3470e2/
U2 - 10.1016/j.ijplas.2026.104728
DO - 10.1016/j.ijplas.2026.104728
M3 - Article
VL - 202
JO - International Journal of Plasticity
JF - International Journal of Plasticity
SN - 0749-6419
M1 - 104728
ER -
ID: 153970830