Reference : Error-controlled adaptive extended finite element method for 3D linear elastic crack ...
Scientific journals : Article
Engineering, computing & technology : Multidisciplinary, general & others
Computational Sciences
http://hdl.handle.net/10993/34866
Error-controlled adaptive extended finite element method for 3D linear elastic crack propagation
English
Jin, Y. [> >]
González-Estrada, O. A. [> >]
Pierard, O. [> >]
Bordas, Stéphane mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit]
2017
Computer Methods in Applied Mechanics & Engineering
318
319-348
Yes
International
[en] Error estimation ; Mesh adaptivity ; X-FEM ; Crack propagation
[en] We present a simple error estimation and mesh adaptation approach for 3D linear elastic crack propagation simulations using the eXtended Finite Element Method (X-FEM). A global extended recovery technique (Duflot and Bordas, 2008) is used to quantify the interpolation error. Based on this error distribution, four strategies relying on two different mesh optimality criteria are compared. The first aims at homogenizing the error distribution. The second minimizes the total number of elements given a target global error level. We study the behaviour of these criteria in the context of cracks treated by an X-FE approach. In particular, we investigate the convergence rates at the element-level depending its enrichment type. We conclude on the most suitable refinement criterion and propose and verify a strategy for mesh adaptation on 3D damage tolerance assessment problems.
EPSRC grant EP/G042705/1 “Increased Reliability for Industrially Relevant Automatic Crack Growth Simulation with the eXtended Finite Element Method” ; SBO Project grant 110070 “Effective Structural Health Monitoring with Additive Manufacturing” of the Agency for Innovation by Science and Technology (IWT)
Researchers ; Professionals ; Students ; General public ; Others
http://hdl.handle.net/10993/34866
10.1016/j.cma.2016.12.016
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85013006969&doi=10.1016%2fj.cma.2016.12.016&partnerID=40&md5=76cd5d583c8d6d0694c500ed0dd3fb7a
FP7 ; 279578 - REALTCUT - Towards real time multiscale simulation of cutting in non-linear materials with applications to surgical simulation and computer guided surgery

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