This work deals with the finite element (FE) implementation of a biphasic poroelastic
formulation specifically developed to address the intricate behaviour of the Intervertebral …

A hybrid finite element formulation is used to model temperature evolutions in concrete
structures at early ages, taking into account the thermo-chemical process of cement …

The hybrid-Trefftz displacement and stress elements for poroelasticity are applied here to
the spectral analysis of bounded saturated porous media. The displacement model is …

The elastodynamic response of saturated poroelastic media is modelled approximating
independently the solid and seepage displacements in the domain and the force and …

The equations that govern the dynamic response of saturated porous media are first
discretized in time to define the boundary value problem that supports the formulation of the …

A new hybrid-mixed stress finite element model for the static and dynamic non-linear
analysis of concrete structures is presented and discussed in this paper. The main feature of …

Purpose–The purpose of this paper is to report the implementation of an alternative time
integration procedure for the dynamic non-linear analysis of structures …

Since the late 80's the Structural Analysis Research Group of the Instituto Superior Técnico
(IST) has been involved in the development of non-conventional finite element formulations …

This work presents a study on the static and dynamic non-linear analysis of two-dimensional
plain concrete structures and plane frame reinforced concrete structures. To model the …

The hybrid-Trefftz formulation of the finite element method is applied to the transient,
physically and geometrically linear analysis of incompressible saturated porous media. Two …