Fifth International Conference on Advanced COmputational Methods in ENgineering (ACOMEN 2011)

in International Journal of Computational & Applied Mathematics (2013), 246

Proceedings of the Fourth International Conference on Advanced Computational Methods in Engineering (ACOMEN 2008)

in Journal of Computational and Applied Mathematics (2010), 234(7),

An assumed natural strain technique for 2D solid-shell elements

in Proceedings of ACOMEN’2008, Advanced Computational Methods in Engineering (2008)

With the combination of the enhanced assumed strain (EAS) and assumed natural strain (ANS) techniques in the removal of shear and volumetric locking, the solid-shell formulation requires a minimum set of ... [more ▼]

With the combination of the enhanced assumed strain (EAS) and assumed natural strain (ANS) techniques in the removal of shear and volumetric locking, the solid-shell formulation requires a minimum set of enhanced modes, and this results in a competitive approach when compared with other fully EAS solid elements in terms of computational costs. Moreover, the latter reportedly suffers difficulties when dealing with very thin plate and shell structures due to the severe transverse shear locking. The paper presents an alternative solid-shell formulation, in which the ANS technique is applied to the upper and lower surfaces instead of at the mid-surface of the solid-shell element as previously adopted. The numerical results show the accuracy and efficiency of the proposed technique. [less ▲]

Actes du Congrès ACOMEN 2002, Second international Conference on Advanced Computational Methods in Engineering, Liège, Belgium, May 28-31, 2002.

Book (2002)

Efficient Implicit Schemes for High-Speed Dynamics and Crash Simulation. Application to shock-absorber devices

in Proceedings of «ACOMEN’98», Advanced Computational Methods in Engineering: Invited Papers (1998, September)

Numerical Procedure for Calculation of Temperature Evolution in Composite Elements with Internal Cavities

in Communications in Numerical Methods in Engineering (1994), 10(6), 437-451

In the paper a computation code based on the finite-element method for temperature evolutions in composite elements with internal cavities is presented. It is suitable for the analysis of various thermal ... [more ▼]

In the paper a computation code based on the finite-element method for temperature evolutions in composite elements with internal cavities is presented. It is suitable for the analysis of various thermal problems encountered in mechanical and civil engineering such as fire risk assessment. It is based on a plane isoparametric triangular element with six nodes allowing the modelling of curved boundaries. In order to analyze composite steel-concrete elements and to take into account the non-linearities coming from the temperature-dependent material properties and from the boundary conditions, an implicit integration scheme is used. Another advantage of the program is the possibility of describing internal cavities with convection and radiation exchanges. In order to show the capacity of the program two examples are presented. Comparisons have been made with experimental and other numerical results, exhibiting very good agreement. [less ▲]

Tratamento do problema de contato e atrito tridimensional pelo método dos elementos finitos

in Idelsohn, S.; Sonzogni, V. (Eds.) Proc. of Mécanica Computational (1994)

Apports d'une formulation eulérienne-lagrangienne pour la simulation des opérations de mise en forme des matériaux

in Actes du Congrès STRUCOME'92 (1992)

METAFOR : Logiciel Eulérien-lagrangien pour l'analyse de la mise à forme et des grandes déformations de matériaux

in Proceedings of "New Advances in Computational Structural Mechanics (1991)

A novel Treatment of Transition Problems in Metal Forming Simulation via Eulerian-Lagrangian Finite Element Modeling

in Proc. of the Second World Congress on Computational Mechanics (1990)