Brunel University Research Archive (BURA) >
Schools >
School of Engineering and Design >
School of Engineering and Design Research papers >

Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/1742

Title: Dual boundary element method for axisymmetric crack analysis
Authors: Lacerda, LA
Wrobel, LC
Keywords: Boundary element method
Axisymmetry
Fracture mechanics
Modified crack closure integral method
Cauchy principal value
Hadamard principal value
Publication Date: 2002
Publisher: Springer
Citation: International Journal of Fracture, 113: 267-284
Abstract: In this paper a dual boundary element formulation is developed and applied to the evaluation of stress intensity factors in, and propagation of, axisymmetric cracks. The displacement and stress boundary integral equations are reviewed and the asymptotic behaviour of their singular and hypersingular kernels is discussed. The modified crack closure integral method is employed to evaluate the stress intensity factors. The combination of the dual formulation with this method requires the adoption of an interpolating function for stresses after the crack tip. Different functions are tested under a conservative criterion for the evaluation of the stress intensity factors. A crack propagation procedure is implemented using the maximum principal stress direction rule. The robustness of the technique is assessed through several examples where results are compared either to analytical ones or to BEM and FEM formulations.
URI: http://bura.brunel.ac.uk/handle/2438/1742
ISSN: 0376-9429
Appears in Collections:School of Engineering and Design Research papers
Mechanical Engineering

Files in This Item:

File Description SizeFormat
International Journal of Fracture 1.pdf299.14 kBAdobe PDFView/Open

Items in BURA are protected by copyright, with all rights reserved, unless otherwise indicated.

 


Library (c) Brunel University.    Powered By: DSpace
Send us your
Feedback. Last Updated: September 14, 2010.
Managed by:
Hassan Bhuiyan