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Measurement of cohesive laws for interlaminar failure of CFRP
Högskolan i Skövde, Institutionen för ingenjörsvetenskap. Högskolan i Skövde, Forskningscentrum för Virtuella system. (Mechanics of Materials (MechMat), Materialmekanik)
Högskolan i Skövde, Institutionen för ingenjörsvetenskap. Högskolan i Skövde, Forskningscentrum för Virtuella system. (Mechanics of Materials (MechMat), Materialmekanik)
Högskolan i Skövde, Institutionen för ingenjörsvetenskap. (Mechanics of Materials (MechMat), Materialmekanik)ORCID-id: 0000-0001-8335-0855
Högskolan i Skövde, Institutionen för ingenjörsvetenskap. Högskolan i Skövde, Forskningscentrum för Virtuella system. (Mechanics of Materials (MechMat), Materialmekanik)ORCID-id: 0000-0003-0787-4942
2014 (engelsk)Inngår i: Composites Science And Technology, ISSN 0266-3538, E-ISSN 1879-1050, Vol. 100, s. 53-62Artikkel i tidsskrift (Fagfellevurdert) Published
sted, utgiver, år, opplag, sider
Elsevier, 2014. Vol. 100, s. 53-62
Emneord [en]
Polymer–matrix composites (PMCs), Delamination, Finite element analysis (FEA), Digital image correlation (DIC)
HSV kategori
Forskningsprogram
Teknik; Materialmekanik
Identifikatorer
URN: urn:nbn:se:his:diva-9559DOI: 10.1016/j.compscitech.2014.05.031ISI: 000340222400008Scopus ID: 2-s2.0-84902333949OAI: oai:DiVA.org:his-9559DiVA, id: diva2:727601
Prosjekter
Keks och EffektTilgjengelig fra: 2014-06-23 Laget: 2014-06-23 Sist oppdatert: 2019-01-22bibliografisk kontrollert
Inngår i avhandling
1. On Cohesive Modelling ofCarbon/Epoxy Composites: Delamination and Fibre Compressive Failure
Åpne denne publikasjonen i ny fane eller vindu >>On Cohesive Modelling ofCarbon/Epoxy Composites: Delamination and Fibre Compressive Failure
2015 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

Carbon Fibre Reinforced Polymers are widely used in engineering applications where weight saving and high mechanical performance are a key factors. However, an inheren tweakness of laminated CFRP:s is there relatively low resistance to delamination. Therst part of this thesis is devoted to extract cohesive laws associated with delamination.The method is based on fracture mechanical tests and measurement of the displacementeld close to the crack tip. The second part of the thesis is concerned with mixed modecohesive modelling under small scale yielding conditions. Under such loading conditions,a robust cohesive model should conform to Linear Elastic Fracture Mechanics (LEFM). Itis shown that two design rules for mixed mode cohesive laws are sucient to achieve thisproperty. The third part focuses a failure mode entirely dierent from delamination. Theobjective is to determine cohesive laws associated with longitudinal compressive failure.Equilibrium of congurational forces is used for this purpose. Identied congurationalforces are continuously measured by monitoring the displacements eld on the specimen'slateral surface. This allows for identication of the cohesive law.

sted, utgiver, år, opplag, sider
Göteborg: Chalmers University of Technology, 2015
Serie
Doktorsavhandlingar vid Chalmers tekniska högskola, ISSN 0346-718X ; Ny serie nr. 3895
Emneord
CFRP, Cohesive zone model, J-integral, LEFM, Delamination, Compressive failure
HSV kategori
Forskningsprogram
Teknik; Materialmekanik
Identifikatorer
urn:nbn:se:his:diva-10996 (URN)978-91-7597-214-5 (ISBN)
Disputas
2015-06-04, EA, Chalmers, Göteborg, 10:00 (engelsk)
Opponent
Veileder
Prosjekter
MDC
Tilgjengelig fra: 2015-06-05 Laget: 2015-06-05 Sist oppdatert: 2019-01-22bibliografisk kontrollert

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