On the validity of linear elastic fracture mechanics methods to measure the fracture toughness of adhesive joints
dc.contributor.author
dc.date.accessioned
2016-09-19T10:02:32Z
dc.date.available
2016-09-19T10:02:32Z
dc.date.issued
2015-03-16
dc.identifier.issn
0020-7683
dc.identifier.uri
dc.description.abstract
The analysis of large-scale fracture processes, such as those involved in the fracture of adhesive joints, falls outside the scope of Linear Elastic Fracture Mechanics (LEFM). However, experimental data produced in testing adhesive joints are usually reduced with LEFM methods. The consequent error has not yet been evaluated. In this work, an experimental characterization under pure-mode loading of an FM-300 epoxy film adhesive is presented for different adhesive and adherend thicknesses. The experimental data is analyzed using both LEFM-based and J-integral-based data reduction methods in order to study their suitability to analyze adhesive joints. LEFM-based data reduction methods are shown to entail a relevant deviation in the fracture toughness results that heavily depends on the size of the fracture process zone. It is concluded that LEFM methods are not suitable to characterize adhesive joints and that their use is restricted, at best, to the measurement of initiation values. The effect that the adhesive and the adherend thicknesses have on the fracture toughness and the R-curve of the material is studied. Adhesive and adherend thicknesses are shown to have a significant influence on the bond fracture toughness and the source of such influence is discussed
dc.description.sponsorship
The first author would like to acknowledge the FPU programgrant AP20100977 from the Spanish Ministerio de Educación,Cultura y Deporte. The authors also acknowledge the support of the Spanish government through the Ministerio de Economía y Competitividad under the contracts DPI2012-34465 and MAT2012-37552-C03-03
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.relation
info:eu-repo/grantAgreement/MINECO//DPI2012-34465/ES/EVALUACION DE COMPOSITES LAMINADOS DE CAPAS FINAS PARA APLICACIONES AERONAUTICAS Y AEROESPACIALES/
info:eu-repo/grantAgreement/MINECO//MAT2012-37552-C03-03/ES/COMPUESTOS MULTIFUNCIONALES Y TOLERANTES AL DAÑO: INTEGRACION DE NANOREFUERZOS DE CARBONO AVANZADOS Y LAMINADOS NO-CONVENCIONALES./
dc.relation.isformatof
Reproducció digital del document publicat a: http://dx.doi.org/10.1016/j.ijsolstr.2015.11.016
dc.relation.ispartof
© International Journal of Solids and Structures, 2015, vol. 81, p. 110-116
dc.relation.ispartofseries
Articles publicats (D-EMCI)
dc.rights
Tots els drets reservats
dc.subject
dc.title
On the validity of linear elastic fracture mechanics methods to measure the fracture toughness of adhesive joints
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/embargoedAccess
dc.embargo.terms
Cap
dc.date.embargoEndDate
info:eu-repo/date/embargoEnd/2026-01-01
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
023848
dc.contributor.funder
dc.relation.ProjectAcronym