The most widely used time integration algorithms for finite-element, based on the Newmark family, are numerically stable only for linear models. Using a variational formulation of elasto-plastic updates for which the stress tensor always derives from an incremental potential, even when plastic behavior is considered, a new Energy-Dissipative Momentum Conserving time integration algorithms can easily be developed. Indeed, the incremental potential guarantees the verification of the numerical dissipation of energy for non-linear elasto-plastic dynamics
International audienceThis paper presents an extension of the energy momentum conserving algorithm, ...
The computational modeling of softening materials is still a challenging subject. An interesting way...
This chapter provides a general and self-contained overview of the variational approach to nonlinear...
The most widely used time integration algorithms for finite-element, based on the Newmark family, ar...
Although they are the most widely used time integration algorithms for finite-element discretization...
International audienceIn a previous paper [L. Noels, L. Stainier, J.-P. Ponthot, An energy momentum ...
In a previous paper [L. Noels, L. Stainier, J.-P. Ponthot, An energy momentum conserving algorithm u...
Traditional time integration algorithms for finite-element discretization are numerically stable onl...
In this paper we use the variational formulation of elasto-plastic updates proposed by Ortiz and Sta...
International audienceIn this paper we use the variational formulation of elasto-plastic updates pro...
A variational formulation of the coupled thermo-mechanical boundary-value problem for general dissip...
It is now well established that discrete energy conservation/dissipation plays a key-role for the un...
Abstract. In this paper an efficient, variationally consistent, algorithmic for-mulation for rate-in...
International audienceWe propose a new discrete element method supporting general polyhedral meshes....
We propose an approach to the definition and analysis of material instabilities in rate-independent ...
International audienceThis paper presents an extension of the energy momentum conserving algorithm, ...
The computational modeling of softening materials is still a challenging subject. An interesting way...
This chapter provides a general and self-contained overview of the variational approach to nonlinear...
The most widely used time integration algorithms for finite-element, based on the Newmark family, ar...
Although they are the most widely used time integration algorithms for finite-element discretization...
International audienceIn a previous paper [L. Noels, L. Stainier, J.-P. Ponthot, An energy momentum ...
In a previous paper [L. Noels, L. Stainier, J.-P. Ponthot, An energy momentum conserving algorithm u...
Traditional time integration algorithms for finite-element discretization are numerically stable onl...
In this paper we use the variational formulation of elasto-plastic updates proposed by Ortiz and Sta...
International audienceIn this paper we use the variational formulation of elasto-plastic updates pro...
A variational formulation of the coupled thermo-mechanical boundary-value problem for general dissip...
It is now well established that discrete energy conservation/dissipation plays a key-role for the un...
Abstract. In this paper an efficient, variationally consistent, algorithmic for-mulation for rate-in...
International audienceWe propose a new discrete element method supporting general polyhedral meshes....
We propose an approach to the definition and analysis of material instabilities in rate-independent ...
International audienceThis paper presents an extension of the energy momentum conserving algorithm, ...
The computational modeling of softening materials is still a challenging subject. An interesting way...
This chapter provides a general and self-contained overview of the variational approach to nonlinear...