The strong formulation finite element method:stability and accuracy
Journal Title: Frattura ed Integrità Strutturale - Year 2014, Vol 8, Issue 29
Abstract
The Strong Formulation Finite Element Method (SFEM) is a numerical solution technique forsolving arbitrarily shaped structural systems. This method uses a hybrid scheme given by the DifferentialQuadrature Method (DQM) and the Finite Element Method (FEM). The SFEM takes the best from DQM andFEM giving a highly accurate strong formulation based technique with the adaptability of finite elements. Thepresent study investigates the stability and accuracy of SFEM when applied to 1D and 2D structuralcomponents, such as rods, beams, membranes and plates using analytical and semi-analytical well-knownsolutions. The numerical results show that the present approach can be very accurate using a small number ofgrid points and elements, when it is compared to standard FEM.
Authors and Affiliations
Francesco Tornabene, Nicholas Fantuzzi, Michele Bacciocchi
Design of a novel magnetorheological damper with internal pressure control
In this work we designed and manufactured a novel magnetorheological (MR) fluid damper with internal pressure control. Previous authors’ works showed that the yield stress τB of MR fluids depends both on the magne...
Welding sequence effects on residual stress distribution in offshore wind monopile structures
Residual stresses are often inevitably introduced into the material during the fabrication processes, such as welding, and are known to have significant effects on the subsequent fatigue crack growth behavior of&n...
Double peeling of elastic pre-tensioned tapes
Peeling is a physical mechanics involved in the detachment of many natural and industrial applications. In this paper, we investigate the double peeling of an endless elastic pre-stressed tape adhering to a flat...
Crack paths and the linear elastic analysis of cracked bodies
The linear elastic analysis of cracked bodies is a Twentieth Century development, with the first papers appearing in 1907, but it was not until the introduction of the stress intensity factor concept in 1957 that&...
Evaluation of stress intensity factor of multiple inclined cracks under biaxial loading
A finite rectangular plate of unit thickness with two inclined cracks (parallel and non parallel) under biaxial mixed mode condition are modelled using finite element method. The finite element method is used for d...