Deformation and fracture of adhesive layers constrained by plastically-deforming adherends

M. S. Kafkalidis, M. D. Thouless, Qingda Yang, S. M. Ward

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

The use of an embedded-process zone (EPZ) model to investigate the mode I cohesive parameters for plastically-deforming, adhesively-bonded joints is demonstrated in this paper. It is shown that for the particular systems investigated, the cohesive parameters are consistent with an adhesive layer deforming in accordance with its bulk constitutive properties (as constrained by the adherends). In other words, these systems provide examples where the cohesive tractions exerted by an adhesive layer can be calculated simply from considerations of the constrained deformation of the adhesive. Consistent with such calculations, the peak stress in the adhesive layer decreases as the level of the constraint decreases (either with an increase in the thickness of the adhesive layer or with a decrease in the thickness of the adherends). It is also shown that owing to a compensating effect in which the critical displacement for failure varies with the constraint, the energy absorbed by the adhesive layer (the 'intrinsic' toughness of the joint) is essentially independent of the geometry in these systems.

Original languageEnglish
Pages (from-to)1593-1607
Number of pages15
JournalJournal of Adhesion Science and Technology
Volume14
Issue number13
DOIs
StatePublished - Dec 1 2000
Externally publishedYes

Fingerprint

adhesives
Adhesives
bonded joints
traction
toughness
Toughness
Geometry
geometry
energy

Keywords

  • Adhesive joints
  • Adhesive layers
  • Fracture
  • Plasticity
  • Process zone

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Computational Mechanics
  • Surfaces, Coatings and Films
  • Materials Chemistry
  • Chemistry(all)
  • Surfaces and Interfaces

Cite this

Deformation and fracture of adhesive layers constrained by plastically-deforming adherends. / Kafkalidis, M. S.; Thouless, M. D.; Yang, Qingda; Ward, S. M.

In: Journal of Adhesion Science and Technology, Vol. 14, No. 13, 01.12.2000, p. 1593-1607.

Research output: Contribution to journalArticle

Kafkalidis, M. S. ; Thouless, M. D. ; Yang, Qingda ; Ward, S. M. / Deformation and fracture of adhesive layers constrained by plastically-deforming adherends. In: Journal of Adhesion Science and Technology. 2000 ; Vol. 14, No. 13. pp. 1593-1607.
@article{eab41224fa9647e4be3a376d4e3f1e61,
title = "Deformation and fracture of adhesive layers constrained by plastically-deforming adherends",
abstract = "The use of an embedded-process zone (EPZ) model to investigate the mode I cohesive parameters for plastically-deforming, adhesively-bonded joints is demonstrated in this paper. It is shown that for the particular systems investigated, the cohesive parameters are consistent with an adhesive layer deforming in accordance with its bulk constitutive properties (as constrained by the adherends). In other words, these systems provide examples where the cohesive tractions exerted by an adhesive layer can be calculated simply from considerations of the constrained deformation of the adhesive. Consistent with such calculations, the peak stress in the adhesive layer decreases as the level of the constraint decreases (either with an increase in the thickness of the adhesive layer or with a decrease in the thickness of the adherends). It is also shown that owing to a compensating effect in which the critical displacement for failure varies with the constraint, the energy absorbed by the adhesive layer (the 'intrinsic' toughness of the joint) is essentially independent of the geometry in these systems.",
keywords = "Adhesive joints, Adhesive layers, Fracture, Plasticity, Process zone",
author = "Kafkalidis, {M. S.} and Thouless, {M. D.} and Qingda Yang and Ward, {S. M.}",
year = "2000",
month = "12",
day = "1",
doi = "10.1163/156856100742401",
language = "English",
volume = "14",
pages = "1593--1607",
journal = "Journal of Adhesion Science and Technology",
issn = "0169-4243",
publisher = "Taylor and Francis Ltd.",
number = "13",

}

TY - JOUR

T1 - Deformation and fracture of adhesive layers constrained by plastically-deforming adherends

AU - Kafkalidis, M. S.

AU - Thouless, M. D.

AU - Yang, Qingda

AU - Ward, S. M.

PY - 2000/12/1

Y1 - 2000/12/1

N2 - The use of an embedded-process zone (EPZ) model to investigate the mode I cohesive parameters for plastically-deforming, adhesively-bonded joints is demonstrated in this paper. It is shown that for the particular systems investigated, the cohesive parameters are consistent with an adhesive layer deforming in accordance with its bulk constitutive properties (as constrained by the adherends). In other words, these systems provide examples where the cohesive tractions exerted by an adhesive layer can be calculated simply from considerations of the constrained deformation of the adhesive. Consistent with such calculations, the peak stress in the adhesive layer decreases as the level of the constraint decreases (either with an increase in the thickness of the adhesive layer or with a decrease in the thickness of the adherends). It is also shown that owing to a compensating effect in which the critical displacement for failure varies with the constraint, the energy absorbed by the adhesive layer (the 'intrinsic' toughness of the joint) is essentially independent of the geometry in these systems.

AB - The use of an embedded-process zone (EPZ) model to investigate the mode I cohesive parameters for plastically-deforming, adhesively-bonded joints is demonstrated in this paper. It is shown that for the particular systems investigated, the cohesive parameters are consistent with an adhesive layer deforming in accordance with its bulk constitutive properties (as constrained by the adherends). In other words, these systems provide examples where the cohesive tractions exerted by an adhesive layer can be calculated simply from considerations of the constrained deformation of the adhesive. Consistent with such calculations, the peak stress in the adhesive layer decreases as the level of the constraint decreases (either with an increase in the thickness of the adhesive layer or with a decrease in the thickness of the adherends). It is also shown that owing to a compensating effect in which the critical displacement for failure varies with the constraint, the energy absorbed by the adhesive layer (the 'intrinsic' toughness of the joint) is essentially independent of the geometry in these systems.

KW - Adhesive joints

KW - Adhesive layers

KW - Fracture

KW - Plasticity

KW - Process zone

UR - http://www.scopus.com/inward/record.url?scp=0034457756&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034457756&partnerID=8YFLogxK

U2 - 10.1163/156856100742401

DO - 10.1163/156856100742401

M3 - Article

AN - SCOPUS:0034457756

VL - 14

SP - 1593

EP - 1607

JO - Journal of Adhesion Science and Technology

JF - Journal of Adhesion Science and Technology

SN - 0169-4243

IS - 13

ER -