nonlinear viscoelasticity

Nonlinear Anisotropic Viscoelasticity

Submitted by arash_yavari on Sat, 10/07/2023 - 01:14

Geometric mechanics

nonlinear viscoelasticity

multiplicative decomposition

Intermediate Configuration

anisotropic solids

In this paper we revisit the mathematical foundations of nonlinear viscoelasticity.

Differentiating Cauchy Viscous strain tensor with Cauchy strain tensor

Submitted by Arpit Agrawal on Sat, 07/02/2016 - 17:01

nonlinear viscoelasticity

continuum mechanics

Hello all,

Mechanochemically Responsive Viscoelastic Elastomers

Submitted by MahdiT on Sat, 05/21/2016 - 20:42

Mechanochemistry

nonlinear viscoelasticity

A research paper published in Vol. 83 of Journal of Applied Mechanics

http://appliedmechanics.asmedigitalcollection.asme.org/article.aspx?art…

Abstract

Discrepancy of numerical results from analytical solution for an nonlinear viscoelasticity model

Submitted by aquis_mech on Tue, 09/14/2010 - 19:05

nonlinear viscoelasticity

I have written a Fortran code for nonlinear viscoelasticity according to the Hughes' recurrence algorithm based on a total Lagrangian formulation. And a relaxation test is made. There is some deviation from the analytical solution(Theoretically the stress response should be an exponential decay plus a constant, isn't it?). The numerical ultimate stress is larger than the analytical one. As a larger initial strain is applied, the deviation is smaller. For a inital strain of 10%, there is almost no difference between the num. and analy. solution. What can account for this?

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