Тип публикации: статья из журнала
Год издания: 1975
Идентификатор DOI: 10.1007/bf00854096
Ключевые слова: viscosity, mathematical modeling, mechanical engineer, relaxation time, numerical calculation
Аннотация: The work applies the relaxation viscoelastic model proposed in [1–3] for calculations of high-rate deformation of bars and plates and for refining the interpolation equations of Maxwellian viscosity χ (a magnitude inverse to the relaxation time τ of the tangential stresses) by means of them. These calculations were carried out to sПоказать полностьюtudy the dependence of the dynamic yield limit σg on the deformation rate ɛ·. The authors propose that the dependence σg(ɛ, T) in ɛ· be transformed, such that χ = ɛ· (σ, T) (here σ is the intensity of the tangential stresses and T is temperature) in order to construct interpolation equations for Maxwellian viscosity χ. A numerical analysis demonstrated that this equation leads to the correct qualitative dependence in calculations of σg (ɛ·). A correction factor is introduced into the equation χ = χ(σ, T) in order for the numerical calculations to quantitatively coincide with the experimental data in this work.
Журнал: Journal of Applied Mechanics and Technical Physics
Выпуск журнала: Т. 16, № 5
Номера страниц: 811-814
ISSN журнала: 00218944
Место издания: Новосибирск
Издатель: Pleiades Publishing, Ltd. (Плеадес Паблишинг, Лтд)