Interface debonding characterization by image correlation integrated with Double Cantilever Beam kinematics

Handle URI:
http://hdl.handle.net/10754/564083
Title:
Interface debonding characterization by image correlation integrated with Double Cantilever Beam kinematics
Authors:
Blaysat, Benoît; Hoefnagels, Johan P.M.; Lubineau, Gilles ( 0000-0002-7370-6093 ) ; Alfano, Marco; Geers, Marc G D
Abstract:
A procedure is proposed for the identification of spatial interfacial traction profiles of peel loaded Double Cantilever Beam (DCB) samples, from which the corresponding traction-separation relation is extracted. The procedure draws upon recent developments in the area of non-contact optical techniques and makes use of so-called Integrated Digital Image Correlation (I-DIC) concepts. The distinctive feature of the I-DIC approach proposed herein is that the unknown degrees of freedom are not displacements or rotations, but the set of interfacial fracture properties describing the traction profile. A closed-form theoretical model is developed to reconstruct a mechanically admissible displacement field representing the deformation of the adhering layers during debonding in the DCB fracture test. The proposed modeling accounts for the spatial traction profile along the interface between the adherends using few degrees of freedom, i.e. crack tip position, maximum stress and size of the process zone. By minimizing the correlation residual with respect to the degrees of freedom, the full set of interfacial fracture properties is obtained through a one-step algorithm, revealing a substantial gain in terms of computational efficiency and robustness. It is shown that the identified traction profile can be effectively combined with the crack opening displacement to extract the corresponding traction-separation relation, i.e. the key input data for any cohesive zone model (CZM). The proposed procedure is validated by post-processing virtually deformed images generated through the finite element method. The robustness with respect to noisy data, as well as the low sensitivity to the initial guess, are demonstrated.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Composite and Heterogeneous Material Analysis and Simulation Laboratory (COHMAS)
Publisher:
Elsevier BV
Journal:
International Journal of Solids and Structures
Issue Date:
Mar-2015
DOI:
10.1016/j.ijsolstr.2014.06.012
Type:
Article
ISSN:
00207683
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorBlaysat, Benoîten
dc.contributor.authorHoefnagels, Johan P.M.en
dc.contributor.authorLubineau, Gillesen
dc.contributor.authorAlfano, Marcoen
dc.contributor.authorGeers, Marc G Den
dc.date.accessioned2015-08-03T12:31:22Zen
dc.date.available2015-08-03T12:31:22Zen
dc.date.issued2015-03en
dc.identifier.issn00207683en
dc.identifier.doi10.1016/j.ijsolstr.2014.06.012en
dc.identifier.urihttp://hdl.handle.net/10754/564083en
dc.description.abstractA procedure is proposed for the identification of spatial interfacial traction profiles of peel loaded Double Cantilever Beam (DCB) samples, from which the corresponding traction-separation relation is extracted. The procedure draws upon recent developments in the area of non-contact optical techniques and makes use of so-called Integrated Digital Image Correlation (I-DIC) concepts. The distinctive feature of the I-DIC approach proposed herein is that the unknown degrees of freedom are not displacements or rotations, but the set of interfacial fracture properties describing the traction profile. A closed-form theoretical model is developed to reconstruct a mechanically admissible displacement field representing the deformation of the adhering layers during debonding in the DCB fracture test. The proposed modeling accounts for the spatial traction profile along the interface between the adherends using few degrees of freedom, i.e. crack tip position, maximum stress and size of the process zone. By minimizing the correlation residual with respect to the degrees of freedom, the full set of interfacial fracture properties is obtained through a one-step algorithm, revealing a substantial gain in terms of computational efficiency and robustness. It is shown that the identified traction profile can be effectively combined with the crack opening displacement to extract the corresponding traction-separation relation, i.e. the key input data for any cohesive zone model (CZM). The proposed procedure is validated by post-processing virtually deformed images generated through the finite element method. The robustness with respect to noisy data, as well as the low sensitivity to the initial guess, are demonstrated.en
dc.publisherElsevier BVen
dc.subjectCohesive zone modelen
dc.subjectDouble Cantilever Beamen
dc.subjectIdentificationen
dc.subjectIntegrated Digital Image Correlationen
dc.subjectInterface mechanicsen
dc.titleInterface debonding characterization by image correlation integrated with Double Cantilever Beam kinematicsen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMechanical Engineering Programen
dc.contributor.departmentComposite and Heterogeneous Material Analysis and Simulation Laboratory (COHMAS)en
dc.identifier.journalInternational Journal of Solids and Structuresen
dc.contributor.institutionEindhoven University of Technology (TU/e), Department of Mechanical Engineering, PO Box 513Eindhoven, Netherlandsen
dc.contributor.institutionDepartment of Mechanical, Energy and Management Engineering (DIMEG), University of Calabria, Ponte P. Bucci, 44CRende, CS, Italyen
kaust.authorLubineau, Gillesen
kaust.authorAlfano, Marcoen
kaust.authorBlaysat, Benoîten
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