Direct and inverse cohesive law identification of hardwood bonded joints with 1C-PUR adhesive using DCB test

A. Majano-Majano; A. J. Lara-Bocanegra; F. Pereira; J. Xavier; J. Morais; M. F. S. F. de Moura

doi:10.1016/j.compstruct.2023.117013

Direct and inverse cohesive law identification of hardwood bonded joints with 1C-PUR adhesive using DCB test

A. Majano-Majano, A. J. Lara-Bocanegra, F. Pereira, J. Xavier, J. Morais, M. F. S. F. de Moura

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

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Abstract

Fracture characterisation under mode I loading of Eucalyptus globulus Labill. bonded joints with one-component polyurethane adhesive (1C-PUR) is addressed in this work. The objective is to estimate the cohesive law representative of the fracture behaviour of these joints. A direct and two inverse procedures were employed to determine the softening laws. The direct method is based on local measurement of crack tip displacements using digital image correlation in the course of Double Cantilever Beam (DCB) tests, while the inverse methods rely on load–displacement data and on load-crack tip opening displacement relations by finite element modelling. It was verified that consistent results can be obtained from the three methodologies leading to the conclusion that the classical inverse procedure is the most appealing one owing to its simplicity.

Original language	English
Article number	117013
Number of pages	10
Journal	Composite Structures
Volume	316
DOIs	https://doi.org/10.1016/j.compstruct.2023.117013
Publication status	Published - 15 Jul 2023

Keywords

Cohesive law
Digital image correlation
Double cantilever beam
Eucalyptus globulus
Mode I fracture
Wood

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10.1016/j.compstruct.2023.117013Licence: CC BY-NC-ND

Direct and inverse cohesiveFinal published version, 1.84 MBLicence: CC BY-NC-ND

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title = "Direct and inverse cohesive law identification of hardwood bonded joints with 1C-PUR adhesive using DCB test",

abstract = "Fracture characterisation under mode I loading of Eucalyptus globulus Labill. bonded joints with one-component polyurethane adhesive (1C-PUR) is addressed in this work. The objective is to estimate the cohesive law representative of the fracture behaviour of these joints. A direct and two inverse procedures were employed to determine the softening laws. The direct method is based on local measurement of crack tip displacements using digital image correlation in the course of Double Cantilever Beam (DCB) tests, while the inverse methods rely on load–displacement data and on load-crack tip opening displacement relations by finite element modelling. It was verified that consistent results can be obtained from the three methodologies leading to the conclusion that the classical inverse procedure is the most appealing one owing to its simplicity.",

keywords = "Cohesive law, Digital image correlation, Double cantilever beam, Eucalyptus globulus, Mode I fracture, Wood",

author = "A. Majano-Majano and Lara-Bocanegra, \{A. J.\} and F. Pereira and J. Xavier and J. Morais and \{de Moura\}, \{M. F. S. F.\}",

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year = "2023",

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doi = "10.1016/j.compstruct.2023.117013",

language = "English",

volume = "316",

journal = "Composite Structures",

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AU - Majano-Majano, A.

AU - Lara-Bocanegra, A. J.

AU - Pereira, F.

AU - Xavier, J.

AU - Morais, J.

AU - de Moura, M. F. S. F.

N1 - Funding Information: info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FEEA%2F04436%2F2019/PT# info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00667%2F2020/PT# The work is part of the R&D&I Project PID2020-112954RA-I00 funded by MCIN/AEI/10.13039/501100011033. Publisher Copyright: © 2023 The Authors

PY - 2023/7/15

Y1 - 2023/7/15

N2 - Fracture characterisation under mode I loading of Eucalyptus globulus Labill. bonded joints with one-component polyurethane adhesive (1C-PUR) is addressed in this work. The objective is to estimate the cohesive law representative of the fracture behaviour of these joints. A direct and two inverse procedures were employed to determine the softening laws. The direct method is based on local measurement of crack tip displacements using digital image correlation in the course of Double Cantilever Beam (DCB) tests, while the inverse methods rely on load–displacement data and on load-crack tip opening displacement relations by finite element modelling. It was verified that consistent results can be obtained from the three methodologies leading to the conclusion that the classical inverse procedure is the most appealing one owing to its simplicity.

AB - Fracture characterisation under mode I loading of Eucalyptus globulus Labill. bonded joints with one-component polyurethane adhesive (1C-PUR) is addressed in this work. The objective is to estimate the cohesive law representative of the fracture behaviour of these joints. A direct and two inverse procedures were employed to determine the softening laws. The direct method is based on local measurement of crack tip displacements using digital image correlation in the course of Double Cantilever Beam (DCB) tests, while the inverse methods rely on load–displacement data and on load-crack tip opening displacement relations by finite element modelling. It was verified that consistent results can be obtained from the three methodologies leading to the conclusion that the classical inverse procedure is the most appealing one owing to its simplicity.

KW - Cohesive law

KW - Digital image correlation

KW - Double cantilever beam

KW - Eucalyptus globulus

KW - Mode I fracture

KW - Wood

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DO - 10.1016/j.compstruct.2023.117013

M3 - Article

AN - SCOPUS:85153064514

SN - 0263-8223

VL - 316

JO - Composite Structures

JF - Composite Structures

M1 - 117013

ER -

Direct and inverse cohesive law identification of hardwood bonded joints with 1C-PUR adhesive using DCB test

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Keywords

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