A six-node pentagonal assumed natural strain solid–shell element

A four-node hybrid assumed-strain finite element for laminated composite plates

Fibre-reinforced plates and shells are finding an increasing interest in engineering applications. Consequently, efficient and robust computational tools are required for the analysis of such structural models. As a matter of fact, a large amount of laminate finite elements have been developed and incorporated in most commercial codes for structural analysis. In this paper a new laminate hybrid...

A triangular six-node shell element

We present a triangular six-node shell element that represents an important improvement over a recently published element [1]. The shell element is formulated, like the original element, using the MITC procedure. The element has the attributes to be spatially isotropic, to pass the membrane and bending patch tests, to contain no spurious zero energy mode, and is formulated without an artificial...

A new prismatic solid-shell element ’SHB6’ : assumed-strain formulation and evaluation on benchmark problems

A Hybrid Stress Plane Element with Strain Field

In this paper, a plane quadrilateral element with rotational degrees of freedom is developed. Present formulation is based on a hybrid functional with independent boundary displacement and internal optimum strain field. All the optimality constraints, including being rotational invariant, omitting the parasitic shear error and satisfying Fliepa’s pure bending test, are considered. Moreover, the...

Automated finite element grid break-up method--A verification of the six node averaging approach

The most popular method for the automatic break-up of regions into plane finite elements seems to be variations of the "sides-and-parts" method as discussed in references 1 through 4. in this method the structure is divided into four-sided parts with the sides divided into straight line segments connected at nodes. Figures 1, 2, and 3 show such parts in the form of a square which has a one-to-o...