11. Viscoelastic and Steady-State Rheological Response

摘要: Publisher Summary This chapter discusses the viscoelastic and steady-state rheological responses. It deals with determination of character polymeric responses that includes creep, stress relaxation, dynamic-mechanical properties at audio ultralow frequencies, shearing response. Viscoelastic behavior is a time-dependent mechanical response, which represents characterizing material as opposed to system When time reach excessive it desired determine viscosity from terminal velocity or get on measurement unique recovery curve, technique suggested by Leaderman et all invaluable. observed stresses measured divided strain rates employed fall common curve function straining creating yet another function. The onset condition usually judged indication limiting rate shear. time-independent should be not just point in laboratory space.