A Conservative Time Integration Scheme for Dynamics of Elasto-damaged Thin Shells

Some aspects of the application of a conservative time integration scheme to the non-linear dynamics of elasto-damaged thin shells are presented. The main characteristic of the scheme is to be conservative, in the sense that it allows the time-discrete system to preserve the basic laws of continuum,...

Full description

Saved in:
Bibliographic Details
Published in:Computer modeling in engineering & sciences 2003, Vol.4 (2), p.273
Main Authors: Briseghella, L, Majorana, C, Pavan, P
Format: Article
Language:English
Subjects:
Constitutive models
Damage
Dynamical systems
Mathematical models
Nonlinear dynamics
Thin walled shells
Time integration
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Some aspects of the application of a conservative time integration scheme to the non-linear dynamics of elasto-damaged thin shells are presented. The main characteristic of the scheme is to be conservative, in the sense that it allows the time-discrete system to preserve the basic laws of continuum, namely the balance of the linear and angular momenta as well as the fulfilment of the second law of thermodynamic. Here the method is applied to thin shells under large displacements and rotations. The constitutive model adopted is built coupling the linear elastic model of De Saint Venant-Kirchhoff with a scalar damage function depending on the maximum value of a suitable strain measure attained through the deformation history.
ISSN:1526-1492
1526-1506
DOI:10.3970/cmes.2003.004.273