TY - JOUR

T1 - On the temporal peculiarities of stabilization effect under cyclic deformation for steel

AU - Petrov, Yu V.

AU - Selyutina, N. S.

N1 - Conference code: XXVII

PY - 2017

Y1 - 2017

N2 - New phenomenological model of accumulation of plastic deformation under repeated cyclic loading for metals based on a notion of the characteristic time as a material property is proposed. Incorporation of the temporal parameter into deformation law allows one to predict the adaptability effect of material at a low-cycle loading, which is defined by the stabilization process of accumulated plastic deformation after multiple loading cycles. Some of the known experimental data for the quenched steel-50 with the observed adaptability effect on the basis of the proposed model are analyzed. Obtained values of the characteristic time for each of the steel grades differ essentially depending on the way of treatment. It is shown that the parameter of temporal sensitiveness of material, presented in the relaxation model of plasticity, can serve as an effective tool for description the stabilization phenomenon and reflection the technological actions towards material.

AB - New phenomenological model of accumulation of plastic deformation under repeated cyclic loading for metals based on a notion of the characteristic time as a material property is proposed. Incorporation of the temporal parameter into deformation law allows one to predict the adaptability effect of material at a low-cycle loading, which is defined by the stabilization process of accumulated plastic deformation after multiple loading cycles. Some of the known experimental data for the quenched steel-50 with the observed adaptability effect on the basis of the proposed model are analyzed. Obtained values of the characteristic time for each of the steel grades differ essentially depending on the way of treatment. It is shown that the parameter of temporal sensitiveness of material, presented in the relaxation model of plasticity, can serve as an effective tool for description the stabilization phenomenon and reflection the technological actions towards material.

KW - cyclic loading

KW - incubation time

KW - steel

UR - http://www.scopus.com/inward/record.url?scp=85065764074&partnerID=8YFLogxK

U2 - 10.1016/j.prostr.2017.11.040

DO - 10.1016/j.prostr.2017.11.040

M3 - Conference article

AN - SCOPUS:85030541375

VL - 6

SP - 265

EP - 268

JO - Procedia Structural Integrity

JF - Procedia Structural Integrity

SN - 2452-3216

T2 - XXVII International Conference «Mathematical and Computer Simulation in Mechanics of Solids and Structures. Fundamentals of static and dynamic fracture»

Y2 - 25 September 2017 through 27 September 2017

ER -