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Debonding and impact damage in stainless steel fibre metal laminates prior to metal fracture

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Debonding and impact damage in stainless steel fibre metal laminates prior to metal fracture. / Pärnänen, T.; Kanerva, M.; Sarlin, E.; Saarela, O.

In: Composite Structures, Vol. 119, 2015, p. 777-786.

Research output: Contribution to journalArticleScientificpeer-review

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Pärnänen, T. ; Kanerva, M. ; Sarlin, E. ; Saarela, O. / Debonding and impact damage in stainless steel fibre metal laminates prior to metal fracture. In: Composite Structures. 2015 ; Vol. 119. pp. 777-786.

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@article{8906a152a07c40de9369a2903691a174,
title = "Debonding and impact damage in stainless steel fibre metal laminates prior to metal fracture",
abstract = "An experimental drop-weight impact investigation was performed for stainless steel fibre metal laminates (FMLs) containing carbon-fibre and glass-fibre-reinforced epoxy layers. The purpose was to study the dependence of metal-composite debonding on the metal's surface morphology, as well as the interaction between debonding and internal damage caused to a composite. Three different steel surface morphologies were studied for the steel-carbon FMLs. Force-contact time and deflection profile measuring, as well as ultrasonic scanning and scanning electron microscopy imaging, were used for impact damage evaluation. Debonding was found to proceed either at the metal and adhesive film interface or cohesively inside the adhesive film. The steel's surface condition did not significantly influence impact response. The research also revealed that debonding between the lower metal sheet and composite part proceeded as mixed mode (I/II) fracture. Debonding was connected to the composite damages by several shear cracks located in the uppermost composite layer.",
keywords = "Debonding, Fibre metal laminates, Fracture, Impact, Interface",
author = "T. P{\"a}rn{\"a}nen and M. Kanerva and E. Sarlin and O. Saarela",
note = "siirret{\"a}{\"a}n 2015<br/>Contribution: organisation=mol,FACT1=1<br/>Portfolio EDEND: 2015-01-13<br/>Publisher name: Elsevier EXT={"}Kanerva, M.{"}",
year = "2015",
doi = "10.1016/j.compstruct.2014.09.056",
language = "English",
volume = "119",
pages = "777--786",
journal = "Composite Structures",
issn = "0263-8223",
publisher = "Elsevier",

}

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TY - JOUR

T1 - Debonding and impact damage in stainless steel fibre metal laminates prior to metal fracture

AU - Pärnänen, T.

AU - Kanerva, M.

AU - Sarlin, E.

AU - Saarela, O.

N1 - siirretään 2015<br/>Contribution: organisation=mol,FACT1=1<br/>Portfolio EDEND: 2015-01-13<br/>Publisher name: Elsevier EXT="Kanerva, M."

PY - 2015

Y1 - 2015

N2 - An experimental drop-weight impact investigation was performed for stainless steel fibre metal laminates (FMLs) containing carbon-fibre and glass-fibre-reinforced epoxy layers. The purpose was to study the dependence of metal-composite debonding on the metal's surface morphology, as well as the interaction between debonding and internal damage caused to a composite. Three different steel surface morphologies were studied for the steel-carbon FMLs. Force-contact time and deflection profile measuring, as well as ultrasonic scanning and scanning electron microscopy imaging, were used for impact damage evaluation. Debonding was found to proceed either at the metal and adhesive film interface or cohesively inside the adhesive film. The steel's surface condition did not significantly influence impact response. The research also revealed that debonding between the lower metal sheet and composite part proceeded as mixed mode (I/II) fracture. Debonding was connected to the composite damages by several shear cracks located in the uppermost composite layer.

AB - An experimental drop-weight impact investigation was performed for stainless steel fibre metal laminates (FMLs) containing carbon-fibre and glass-fibre-reinforced epoxy layers. The purpose was to study the dependence of metal-composite debonding on the metal's surface morphology, as well as the interaction between debonding and internal damage caused to a composite. Three different steel surface morphologies were studied for the steel-carbon FMLs. Force-contact time and deflection profile measuring, as well as ultrasonic scanning and scanning electron microscopy imaging, were used for impact damage evaluation. Debonding was found to proceed either at the metal and adhesive film interface or cohesively inside the adhesive film. The steel's surface condition did not significantly influence impact response. The research also revealed that debonding between the lower metal sheet and composite part proceeded as mixed mode (I/II) fracture. Debonding was connected to the composite damages by several shear cracks located in the uppermost composite layer.

KW - Debonding

KW - Fibre metal laminates

KW - Fracture

KW - Impact

KW - Interface

UR - http://www.scopus.com/inward/record.url?scp=84908303091&partnerID=8YFLogxK

U2 - 10.1016/j.compstruct.2014.09.056

DO - 10.1016/j.compstruct.2014.09.056

M3 - Article

VL - 119

SP - 777

EP - 786

JO - Composite Structures

JF - Composite Structures

SN - 0263-8223

ER -