| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 253230 | Composite Structures | 2010 | 6 Pages |
Abstract
A model for continuous damage combined with viscoelasticity is proposed. The starting point is the formulation connecting the elastic properties to the tensor of damage variables. A hardening law associated with the damage process is identified from available experimental information and the rate-type constitutive equations are derived. This elastic damage formulation is used to formulate an internal variable approximation to viscoelastic damage in the form of a non-linear Kelvin chain. Elastic and viscoelastic equations are implemented into a finite element procedure. The code is verified by comparison with closed-form solutions in simplified configurations, and validated by fitting results of experimental creep tests.
Related Topics
Physical Sciences and Engineering
Engineering
Civil and Structural Engineering
Authors
R.C. Pavan, B.F. Oliveira, S. Maghous, G.J. Creus,