On the performances of different nodal integration techniques and their stabilization
Estadístiques de LA Referencia / Recolecta
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/184510
Tipus de documentText en actes de congrés
Data publicació2011
EditorCIMNE
Condicions d'accésAccés obert
Tots els drets reservats. Aquesta obra està protegida pels drets de propietat intel·lectual i
industrial corresponents. Sense perjudici de les exempcions legals existents, queda prohibida la seva
reproducció, distribució, comunicació pública o transformació sense l'autorització del titular dels drets
Abstract
Finite element method was successfully applied in the simulation of several forming processes; however, it does not represent an absolute reference point. In fact, large deformation corresponds to a heavy mesh distortion. Powerful rezoning-remeshing algorithms strongly reduce the effects of such a limitation but the computational time significantly increases and additional errors occur. Nodal Integration is a recently introduced technique that allows finite element method to provide reliable results also when meshes becomes distorted in traditional FEMs. Furthermore, volumetric locking problems seem to be avoided using this integration technique instead of other methods such as coupled formulations. Nevertheless, spurious low-energy modes appear due to the nodal averaging of strain. For this reason stabilizing methods application seems to be suitable. What is more, different nodal integration techniques have been proposed, although spurious modes are a common problem. In this paper the performances of three different nodal integration techniques and the effects of a recently introduced stabilization methodology are studied simulating a classical forming process.
CitacióGreco, F. [et al.]. On the performances of different nodal integration techniques and their stabilization. A: COMPLAS XI. "COMPLAS XI : proceedings of the XI International Conference on Computational Plasticity : fundamentals and applications". CIMNE, 2011, p. 1466-1477.
ISBN978-84-89925-73-1
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
COMPLAS-2011_13 ... ces of different nodal.pdf | 1,491Mb | Visualitza/Obre |