58 citations · 200 across the 12 of their papers we have counts for
5 papers · 1 filter
The rotating rigid body model based on a non-twisting frame
Cristian Guillermo Gebhardt, Ignacio Romero
This work proposes and investigates a new model of the rotating rigid body based on the non-twisting frame. Such a frame consists of three mutually orthogonal unit vectors whose ro…
Structural models based on 3D constitutive laws: variational structure and numerical solution
David Portillo, Bastian Oesterle, Rebecca Thierer +2
In all structural models, the section or fiber response is a relation between the strain measures and the stress resultants. This relation can only be expressed in a simple analyti…
Development of a thermo-mechanically coupled crystal plasticity modeling framework: application to polycrystalline homogenization
Jifeng Li, Ignacio Romero, Javier Segurado
Accurate predictions of thermo-mechanically coupled process in metals can lead to a reduction of cost and an increase of productivity in manufacturing processes such as forming. Fo…
A new conservative/dissipative time integration scheme for nonlinear mechanical systems
Cristian G. Gebhardt, Ignacio Romero, Raimund Rolfes
We present a conservative/dissipative time integration scheme for nonlinear mechanical systems. Starting from a weak form, we derive algorithmic forces and velocities that guarante…
Variational principles for nonlinear Kirchhoff rods
Ignacio Romero, Cristian G. Gebhardt
The present article studies variational principles for the formulation of static and dynamic problems involving Kirchhoff rods in a fully nonlinear setting. These results, some of…