Reference : Multiple crack detection in 3D using a stable XFEM and global optimization
Scientific journals : Article
Engineering, computing & technology : Multidisciplinary, general & others
Computational Sciences
Multiple crack detection in 3D using a stable XFEM and global optimization
Agathos, Konstantinos []
Chatzi, Eleni []
Bordas, Stéphane mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
Computational Mechanics
Springer Science & Business Media B.V.
Yes (verified by ORBilu)
New York
[en] Crack detection ; XFEM ; Genetic algorithms ; CMA-ES
[en] A numerical scheme is proposed for the detection of multiple cracks in three dimensional (3D) structures. The scheme is based on a variant of the extended finite element method (XFEM) and a hybrid optimizer solution. The proposed XFEM variant is particularly well-suited for the simulation of 3D fracture problems, and as such serves as an efficient solution to the so-called forward problem. A set of heuristic optimization algorithms are recombined into a multiscale optimization scheme. The introduced approach proves effective in tackling the complex inverse problem involved, where identification of multiple flaws is sought on the basis of sparse measurements collected near the structural boundary. The potential of the scheme is demonstrated through a set of numerical case studies of varying complexity.
Engineering and Physical Sciences Research Council EP/G042705/1 ; Swiss National Science Foundation under research Grant # 200021_153379 “A Multiscale Hysteretic XFEM Scheme for the Analysis of Composite Structures”.
Researchers ; Professionals ; Students ; General public ; Others
FP7 ; 279578 - REALTCUT - Towards real time multiscale simulation of cutting in non-linear materials with applications to surgical simulation and computer guided surgery
FnR ; FNR11019432 > Stéphane Bordas > EnLightenIt > Multiscale modelling of lightweight metallic materials accounting for variability of geometrical and material properties > 01/10/2016 > 30/09/2020 > 2015

File(s) associated to this reference

Fulltext file(s):

Limited access
10.1007-s00466-017-1532-y.pdfPublisher postprint2.45 MBRequest a copy

Bookmark and Share SFX Query

All documents in ORBilu are protected by a user license.