Based on Leonov constitutive model, the oscillatory shear stress generated by the oscillatory shear flow of polymer melts in a cavity during injection molding is probed. 采用Leonov本构模型,首次研究了在注射成型中模腔内聚合物熔体的振动剪切流动时所产生的振动剪切应力。
Equivalent Steady Shear Rate for Oscillatory Shear Flow 振动剪切流场的等效稳态剪切速率
Theoretical Model for Oscillatory Shear Flow in A Cavity during Injection Molding 注射成型中模腔内振动剪切流动的理论模型
In this paper, equivalent steady shear rate for oscillatory shear flow was proposed. Based on kinetic network structural theory, a kinetic rate equation of entanglement density was established for oscillatory flow. 根据瞬态网络结构理论,建立了振动剪切流场中聚合物熔体缠结密度的动态速率微分方程。