Abstract

In this paper we present the formulation of a solid-shell element with 24 dof (the three cartesian components of displacement at the eight nodes of a solid hexahedron element), taking into account previous contributions to avoid shear, trapezoidal and thickness locking. But we also enhance the 3D displacement field by incomplete quadratic terms to improve the bending and transverse shear energies as was done for the performing DKMQ plate bending element proposed by Katili. After the formulation aspects, we present the results for some classical benchmark problems and for the linear analysis of a particular shallow foundation system called 'spider net system footing' used in Indonesia.