Experimental investigation of wave propagation in nonlinear viscoelastic materials
By establishing a similarity between the short-time elastic response and the long-time equilibrium stress for materials with fading memory, Lianis (1) proposed an approximate form of constitutive equation for finite linear viscoelasticity [Ref. (2)]. This constitutive equation was successful in the study of uniaxial deformation histories (3–5) in the static region. This investigation aims at measuring the material functions of viscoelastic materials by a series of wave propagation tests, in order to verify the validity of Lianis’ constitutive equation at very short times.
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- 1).Lianis, G., Constitutive Equations of Viscoelastic Solids under Finite Deformation. Purdue University Report AA & ES 63-11 (1963).Google Scholar
- 4).McGuirt, C. W. and G. Lianis, The Constant Stretch Rate History. Comparison of Theory with Experiment. Purdue University Report AA & ES 67-2(1967).Google Scholar
- 5).Goldberg, W. and G. Lianis, J. Applied Mech. 35, No. 3, Trans. ASME 90, Series E (1968).Google Scholar
- 8).Lianis, G., Small Deformations Superposed on an Initial Large Deformation in Viscoelastic Bodies, Proceedings, Fourth International Congress on Rheology, Part 2, p. 109 (1965).Google Scholar
- 10).Kaya, L, Ph.D. Thesis, Univ. of California, Berkeley (1968).Google Scholar
- 11).Repperger, E. A. and L. M. Yeakley, Experimental Mechanics, Feb. (1963).Google Scholar