Reference : Isogeometric boundary element methods for three dimensional fatigue crack growth
Reports : Internal report
Engineering, computing & technology : Aerospace & aeronautics engineering
Engineering, computing & technology : Civil engineering
Computational Sciences
http://hdl.handle.net/10993/22289
Isogeometric boundary element methods for three dimensional fatigue crack growth
English
Peng, Xuan []
Atroshchenko, Elena []
Kerfriden, Pierre []
Bordas, Stéphane mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
Oct-2015
Cardiff University
[en] Isogeometric analysis ; fatigue fracture growth ; Boundary element method
[en] The isogeometric boundary element method (IGABEM) based on NURBS is adopted to model fracture problem in 3D. The NURBS basis functions are used in both crack representation and physical quantity approximation. A stable quadrature scheme for singular integration is proposed to enhance the robustness of the method in dealing with highly distorted element. The convergence study in crack opening displacement is performed for penny-shaped crack and elliptical crack. Two ways to extract stress intensity factors (SIFs), the contour $M$ integral and virtual crack closure integral, are implemented based on the framework of dual integral equations. An algorithm is outlined and validated to be stable for fatigue crack growth, thanks to the smoothness not only in crack geometry but also in stress/SIFs solution brought by IGABEM.
Researchers ; Professionals ; Students ; General public ; Others
http://hdl.handle.net/10993/22289
FP7 ; 289361 - INSIST - Integrating Numerical Simulation and Geometric Design Technology

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Open access
igabem3d_01doubleSpace.pdfPublisher postprint6.71 MBView/Open

Additional material(s):

File Commentary Size Access
Open access
penny crack growth.avi16.66 MBView/Open
Open access
elliptical crack growth.avi19.48 MBView/Open

Bookmark and Share SFX Query

All documents in ORBilu are protected by a user license.