Laser-based surface patterning of composite plates for improved secondary adhesive bonding

Ran Tao; Marco Alfano; Gilles Lubineau

doi:10.1016/j.compositesa.2018.02.041

Laser-based surface patterning of composite plates for improved secondary adhesive bonding

Ran Tao, Marco Alfano, Gilles Lubineau

Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

89 Scopus citations

Abstract

The effects of laser irradiation surface pretreatments on the mode I fracture toughness of adhesively bonded composite joints were evaluated. First, pulsed CO₂ laser irradiation was uniformly deployed on carbon fiber reinforced polymer (CFRP) substrates. Next, double cantilever beam (DCB) tests were performed to assess the effects of surface pretreatments on the mode I fracture toughness of the adhesive joints. Then, a thoughtful combination of the proposed surface pretreatments was deployed to fabricate DCB specimens with patterned interfaces. A wide range of techniques, including X-ray photoelectron spectroscopy (XPS), contact profilometry, and optical and scanning electron microscopy (SEM) were used to ascertain the effects of all investigated surface pretreatments. It is shown that patterning promoted damage mechanisms that were not observed in the uniformly treated interfaces, resulting in an effective fracture toughness well above that predicted by a classical rule of mixture.

Original language	English (US)
Pages (from-to)	84-94
Number of pages	11
Journal	Composites Part A: Applied Science and Manufacturing
Volume	109
DOIs	https://doi.org/10.1016/j.compositesa.2018.02.041
State	Published - Jun 2018

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST).

Keywords

Adhesive joints
CFRP
Fracture toughness
Patterned interface
Pulsed laser irradiation

ASJC Scopus subject areas

Ceramics and Composites
Mechanics of Materials

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10.1016/j.compositesa.2018.02.041

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title = "Laser-based surface patterning of composite plates for improved secondary adhesive bonding",

abstract = "The effects of laser irradiation surface pretreatments on the mode I fracture toughness of adhesively bonded composite joints were evaluated. First, pulsed CO2 laser irradiation was uniformly deployed on carbon fiber reinforced polymer (CFRP) substrates. Next, double cantilever beam (DCB) tests were performed to assess the effects of surface pretreatments on the mode I fracture toughness of the adhesive joints. Then, a thoughtful combination of the proposed surface pretreatments was deployed to fabricate DCB specimens with patterned interfaces. A wide range of techniques, including X-ray photoelectron spectroscopy (XPS), contact profilometry, and optical and scanning electron microscopy (SEM) were used to ascertain the effects of all investigated surface pretreatments. It is shown that patterning promoted damage mechanisms that were not observed in the uniformly treated interfaces, resulting in an effective fracture toughness well above that predicted by a classical rule of mixture.",

keywords = "Adhesive joints, CFRP, Fracture toughness, Patterned interface, Pulsed laser irradiation",

author = "Ran Tao and Marco Alfano and Gilles Lubineau",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST).",

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language = "English (US)",

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T1 - Laser-based surface patterning of composite plates for improved secondary adhesive bonding

AU - Tao, Ran

AU - Alfano, Marco

AU - Lubineau, Gilles

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST).

PY - 2018/6

Y1 - 2018/6

N2 - The effects of laser irradiation surface pretreatments on the mode I fracture toughness of adhesively bonded composite joints were evaluated. First, pulsed CO2 laser irradiation was uniformly deployed on carbon fiber reinforced polymer (CFRP) substrates. Next, double cantilever beam (DCB) tests were performed to assess the effects of surface pretreatments on the mode I fracture toughness of the adhesive joints. Then, a thoughtful combination of the proposed surface pretreatments was deployed to fabricate DCB specimens with patterned interfaces. A wide range of techniques, including X-ray photoelectron spectroscopy (XPS), contact profilometry, and optical and scanning electron microscopy (SEM) were used to ascertain the effects of all investigated surface pretreatments. It is shown that patterning promoted damage mechanisms that were not observed in the uniformly treated interfaces, resulting in an effective fracture toughness well above that predicted by a classical rule of mixture.

AB - The effects of laser irradiation surface pretreatments on the mode I fracture toughness of adhesively bonded composite joints were evaluated. First, pulsed CO2 laser irradiation was uniformly deployed on carbon fiber reinforced polymer (CFRP) substrates. Next, double cantilever beam (DCB) tests were performed to assess the effects of surface pretreatments on the mode I fracture toughness of the adhesive joints. Then, a thoughtful combination of the proposed surface pretreatments was deployed to fabricate DCB specimens with patterned interfaces. A wide range of techniques, including X-ray photoelectron spectroscopy (XPS), contact profilometry, and optical and scanning electron microscopy (SEM) were used to ascertain the effects of all investigated surface pretreatments. It is shown that patterning promoted damage mechanisms that were not observed in the uniformly treated interfaces, resulting in an effective fracture toughness well above that predicted by a classical rule of mixture.

KW - Adhesive joints

KW - CFRP

KW - Fracture toughness

KW - Patterned interface

KW - Pulsed laser irradiation

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SP - 84

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JO - Composites Part A: Applied Science and Manufacturing

JF - Composites Part A: Applied Science and Manufacturing

ER -

Laser-based surface patterning of composite plates for improved secondary adhesive bonding

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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