Response for Classical Extremes Spring Purely Elastic Dashpot Purely Viscous Response Response Hookean Solid Newtonian Liquid o=Gy o=nt In the case of the classical extremes,all that matters is the values of stress,strain,strain rate.The response is independent of the loading. 为 where where is called b the relaxation time Maxwell Kelvin-Voigt = is called the complaince Mechanical analogs of viscoelastic liquids o=GY 0=71 Maxwell Kelvin-Voigt Burgers The Maxwell,Kelvin-Voigl and Burgers models. 33 Response for Classical Extremes Purely Elastic Response Hookean Solid σ = Gγ In the case of the classical extremes, all that matters is the values of stress, strain, strain rate. The response is independent of the loading. Spring Dashpot Purely Viscous Response Newtonian Liquid σ = ηγ. γ = σ 1 G + t η ⎛ ⎝ ⎜ ⎞ ⎠ ⎟ where η G is called the relaxation time γ = σ G 1− e −t τ ⎛ ⎝ ⎜ ⎞ ⎠ ⎟ where τ =η G J = γ σ is called the complaince σ ηγ σ γ = & = G Mechanical analogs of viscoelastic liquids