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 The force method to calculate stress intensity factors for arbitrary meshes
Please use this identifier to cite or link to this item http://hdl.handle.net/10773/5427

title: The force method to calculate stress intensity factors for arbitrary meshes
authors: Costa, Ana S. L.
Cardoso, Rui P. R.
Yoon, Jeong-Whan
Morais, Alfredo B. de
keywords: Finite element analysis
Stress intensity factor
Force method
issue date: 5-Sep-2007
publisher: Centro Internacional de Métodos Numéricos en Ingeniería
abstract: The force method is a simple and accurate technique to obtain the stress intensity factors (SIF) for both modes I, II and also mixed I+II modes of fracture. The method uses the summation of internal nodal forces in the vicinity of the crack tip to compute SIFs. Recently, de Morais1 showed that the force method is able to yield accurate SIF values from FE models constructed with regular meshes of linear elements. In this paper, the force method is applied successfully to general finite element meshes, in such a way that it can be used on crack propagation algorithms with arbitrary crack paths.
URI: http://hdl.handle.net/10773/5427
publisher version/DOI: http://congreso.cimne.com/complas07/frontal/default.asp
source: COMPLAS: IX International Conference on Computational Plasticity
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