Articles

On the sensitivity of the POD technique for a parameterized quasi-nonlinear parabolic equation

In what follows, we consider the Proper Orthogonal Decomposition (POD) technique of model order reduction, for a parameterized quasi-nonlinear parabolic equation.

Authors: Nissrine Akkari, Aziz Hamdouni, Erwan Liberge and Mustapha Jazar

Treatment of nearly-singular problems with the X-FEM

In recent years, lot of research have been conducted on fictitious domain approaches in order to simplify the meshing process for computed aided analysis. The behaviour of such non-conforming methods is studie...

Authors: Grégory Legrain and Nicolas Moës

Real time simulation for computational surgery: a review

In this paper a non-exhaustive review is made on the existing literature for real-time simulation in the field of computational surgery. Many methods have been proposed so far to deal with the very astringent ...

Authors: Elías Cueto and Francisco Chinesta

On a recursive formulation for solving inverse form finding problems in isotropic elastoplasticity

Inverse form finding methods allow conceiving the design of functional components in less time and at lower costs than with direct experiments. The deformed configuration of the functional component, the appli...

Authors: Sandrine Germain, Philipp Landkammer and Paul Steinmann

Some remarks on surface conditions of solid body plunging into water with particle method

The water splash patterns strongly depend on the surface conditions of the solid object. The present paper discusses the influence of the surface conditions of the solids falling into the water on the formatio...

Authors: Masao Yokoyama, Yoshihiro Kubota, Kenji Kikuchi, Genki Yagawa and Osamu Mochizuki

A frontal approach to hex-dominant mesh generation

Indirect quad mesh generation methods rely on an initial triangular mesh. So called triangle-merge techniques are then used to recombine the triangles of the initial mesh into quadrilaterals. This way, high-qu...

Authors: Tristan Carrier Baudouin, Jean-François Remacle, Emilie Marchandise, François Henrotte and Christophe Geuzaine

A micromechanics-based interface mesomodel for virtual testing of laminated composites

The prediction of the behavior of laminated composite structures up to final fracture continues to be a challenge today. Indeed, failure may occur due to the interaction of small-scale degradations, such as tr...

Authors: Pierre Ladevèze, Federica Daghia, Emmanuelle Abisset and Camille Le Mauff

Membrane wrinkling revisited from a multi-scale point of view

Membrane modeling in the presence of wrinkling is revisited from a multi-scale point of view. In the engineering literature, wrinkling is generally accounted at a macroscopic level by nonlinear constitutive la...

Authors: Noureddine Damil, Michel Potier-Ferry and Heng Hu

A posteriori error analysis of stabilised FEM for degenerate convex minimisation problems under weak regularity assumptions

The discretisation of degenerate convex minimisation problems experiences numerical difficulties with a singular or nearly singular Hessian matrix.

Authors: Wolfgang Boiger and Carsten Carstensen

Separated representations of 3D elastic solutions in shell geometries

The solution of 3D models in degenerated geometries in which some characteristic dimensions are much lower than the other ones -e.g. beams, plates, shells,...- is a tricky issue when using standard mesh-based ...

Authors: Brice Bognet, Adrien Leygue and Francisco Chinesta

A port-reduced static condensation reduced basis element method for large component-synthesized structures: approximation and A Posteriori error estimation

We consider a static condensation reduced basis element framework for efficient approximation of parameter-dependent linear elliptic partial differential equations in large three-dimensional component-based do...

Authors: Jens L Eftang and Anthony T Patera

Modeling elastic-plastic buckling of sandwich axisymmetric shells: on the limits of "shell" models and analytical solutions

The objective of this paper is to answer the question: "Can a 'shell' model always be used to predict the elastic buckling of a shell?"

Authors: Alain G Combescure

Editorial – Advanced modeling and simulation in engineering sciences

Authors: Pierre Ladevèze