Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
510459 | Computers & Structures | 2011 | 11 Pages |
Abstract
The present work is concerned with the numerical integration of finite viscoelastic or viscoplastic models. A numerical integration scheme based on the definition of a flow direction and a flow amplitude as in elastoplasticity is proposed. The most original feature of this approach resides in a local correction of the direction and amplitude with a sub-stepping strategy. Comparisons with the results obtained using a classical tensorial integrator based on a Runge-Kutta–Fehlberg scheme are provided. The reliability of the present numerical scheme is investigated with three rheological models two are viscoelastic (Zener and Poynting–Thomson) and one is viscoplastic.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
S. Lejeunes, A. Boukamel, S. Méo,