The salt formation is regarded as Maxwell model, and a viscous elastic mechanical model for plane strain features is established.
将盐层作为马克斯威尔体，建立了平面应变问题的粘弹性体力学模型。
2
Based on above fitted relation and equivalent viscous damping theory, a nonlinear constitutive equation of damping alloy depending on strain amplitude and frequency is put forward.
将所得变化规律与等效粘性阻尼理论相结合，给出了一种依赖于应变和频率的非线性阻尼本构关系式。
3
Based on a series of plane strain cyclic tests on air-dried Toyoura sand, the viscous properties of sand under loading-unloading conditions are presented.