Theoretical analysis, infrared and structural investigations of energy dissipation in metals under cyclic loading
Theoretical analysis, infrared and structural investigations of energy dissipation in metals under cyclic loading
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DOI:
10.1016/j.msea.2006.02.462
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发表时间:
2007-07
期刊:
影响因子:
6.4
通讯作者:
O. Plekhov;N. Saintier;T. Palin-Luc;S. Uvarov;O. Naimark
中科院分区:
文献类型:
--
作者:
O. Plekhov;N. Saintier;T. Palin-Luc;S. Uvarov;O. Naimark
The infrared and structural investigations of energy dissipation processes in metals subjected to cyclic loading have given impetus to the development of a new thermodynamic model with the capability of describing the energy balance under plastic deformation. The model is based on the statistical description of the mesodefect ensemble evolution and its influence on the dissipation ability of the material. Constitutive equations have been formulated for plastic and structural strains, which allow us to describe the stored and dissipated parts of energy under plastic flow. Numerical results indicate that theoretical predictions are in good agreement with the experimentally observed temperature data.