Viscoelastic properties of a gum vulcanizate at large static deformations

Effects of dehydration on the viscoelastic properties of vocal folds in large deformations.

Dehydration may alter vocal fold viscoelastic properties, thereby hampering phonation. The effects of water loss induced by an osmotic pressure potential on vocal fold tissue viscoelastic properties were investigated. Porcine vocal folds were dehydrated by immersion in a hypertonic solution, and quasi-static and low-frequency dynamic traction tests were performed for elongations of up to 50%. D...

On Axisymmetrjc Deformations of Nonlinear Viscoelastic Membranes

In previous work it was shown that a class of axisymmetric viscoelastic membrane problems can be reduced to the numerical solution of a system of partial differential-Volterra integral equations. This general method has the disadvantage that a change in constitutive equation requires rederivation of specific details of the governing system. In this paper, a revised method is presented in which ...

A spectral/finite difference method for simulating large deformations of heterogeneous, viscoelastic materials

A numerical algorithm is presented that simulates large deformations of heterogeneous, viscoelastic materials in two dimensions. The algorithm is based on a spectral/finite difference method and uses the Eulerian formulation including objective derivatives of the stress tensor in the rheological equations. The viscoelastic rheology is described by the linear Maxwell model, which consists of an ...

An approach to elastoplasticity at large deformations

While elastoplasticity theories at small deformations are well established for various materials, elastoplasticity theories at large deformations are still a subject of controversy and lively discussions. Among the approaches to finite elastoplasticity two became especially popular. The first, implemented in the commercial finite element codes, is based on the introduction of a hypoelastic cons...

Mechanical properties of tendons and ligaments. I. Quasi-static and nonlinear viscoelastic properties.