Research output: Contribution to journal › Article › peer-review
Finite strain transient creep of D16T alloy : Identification and validation employing heterogeneous tests. / Shutov, A. V.; Larichkin, A. Yu.
In: Journal of Physics: Conference Series, Vol. 894, No. 1, 012110, 22.10.2017.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Finite strain transient creep of D16T alloy
T2 - Identification and validation employing heterogeneous tests
AU - Shutov, A. V.
AU - Larichkin, A. Yu
PY - 2017/10/22
Y1 - 2017/10/22
N2 - A cyclic creep damage model, previously proposed by the authors, is modified for a better description of the transient creep of D16T alloy observed in the finite strain range under rapidly changing stresses. The new model encompasses the concept of kinematic hardening, which allows us to account for the creep-induced anisotropy. The model kinematics is based on the nested multiplicative split of the deformation gradient, proposed by Lion. The damage evolution is accounted for by the classical Kachanov-Rabotnov approach. The material parameters are identified using experimental data on cyclic torsion of thick-walled samples with different holding times between load reversals. For the validation of the proposed material model, an additional experiment is analyzed. Although this additional test is not involved in the identification procedure, the proposed cyclic creep damage model describes it accurately.
AB - A cyclic creep damage model, previously proposed by the authors, is modified for a better description of the transient creep of D16T alloy observed in the finite strain range under rapidly changing stresses. The new model encompasses the concept of kinematic hardening, which allows us to account for the creep-induced anisotropy. The model kinematics is based on the nested multiplicative split of the deformation gradient, proposed by Lion. The damage evolution is accounted for by the classical Kachanov-Rabotnov approach. The material parameters are identified using experimental data on cyclic torsion of thick-walled samples with different holding times between load reversals. For the validation of the proposed material model, an additional experiment is analyzed. Although this additional test is not involved in the identification procedure, the proposed cyclic creep damage model describes it accurately.
KW - RHEOLOGICAL MODELS
KW - VISCOPLASTICITY
KW - DEFORMATION
KW - TEMPERATURE
KW - COMPRESSION
KW - INTEGRATION
KW - BEHAVIOR
KW - TENSION
KW - STRESS
KW - SPLIT
UR - http://www.scopus.com/inward/record.url?scp=85033234343&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/894/1/012110
DO - 10.1088/1742-6596/894/1/012110
M3 - Article
AN - SCOPUS:85033234343
VL - 894
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012110
ER -
ID: 9699711