Reference : Modelling interfacial cracking with non-matching cohesive interface elements
Scientific journals : Article
Engineering, computing & technology : Multidisciplinary, general & others
Computational Sciences
http://hdl.handle.net/10993/34904
Modelling interfacial cracking with non-matching cohesive interface elements
English
Nguyen, Viet Ha mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit]
Nguyen, Chi Thanh [> >]
Bordas, Stéphane mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit]
Heidarpour, Amin [> >]
2016
Computational Mechanics
58
5
731-746
Yes
International
[en] Cohesive zone model (CZM) ; Discontinuous Galerkin ; Cohesive interface elements ; Intrinsic/extrinsic traction separation laws (TSL) ; Fracture mechanics
[en] Interfacial cracking occurs in many engineering problems such as delamination in composite laminates, matrix/interface debonding in fibre reinforced composites etc. Computational modelling of these interfacial cracks usually employs compatible or matching cohesive interface elements. In this paper, incompatible or non-matching cohesive interface elements are proposed for interfacial fracture mechanics problems. They allow non-matching finite element discretisations of the opposite crack faces thus lifting the constraint on the compatible discretisation of the domains sharing the interface. The formulation is based on a discontinuous Galerkin method and works with both initially elastic and rigid cohesive laws. The proposed formulation has the following advantages compared to classical interface elements: (i) non-matching discretisations of the domains and (ii) no high dummy stiffness. Two and three dimensional quasi-static fracture simulations are conducted to demonstrate the method. Our method not only simplifies the meshing process but also it requires less computational demands, compared with standard interface elements, for problems that involve materials/solids having a large mismatch in stiffnesses.
Australian Research Council via project DE160100577
Researchers ; Professionals ; Students ; General public ; Others
http://hdl.handle.net/10993/34904
10.1007/s00466-016-1314-y
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84978151346&doi=10.1007%2fs00466-016-1314-y&partnerID=40&md5=c889a8e3fd78019e6e6170a939d740d5
FP7 ; 279578 - REALTCUT - Towards real time multiscale simulation of cutting in non-linear materials with applications to surgical simulation and computer guided surgery

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Limited access
Modelling interfacial cracking.pdfPublisher postprint3.31 MBRequest a copy

Bookmark and Share SFX Query

All documents in ORBilu are protected by a user license.