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The intrinsic fracture property of a rubber-modified epoxy adhesive: Geometrical transferability.

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Title: The intrinsic fracture property of a rubber-modified epoxy adhesive: Geometrical transferability.
Authors: Quan, Dong1, Murphy, Neal1, Cardiff, Philip1, Ivankovic, Alojz1 alojz.ivankovic@ucd.ie
Source: Engineering Fracture Mechanics. Nov2018, Vol. 203, p240-249. 10p.
Subjects: Fracture mechanics, Adhesives, Material plasticity, Scanning electron microscopy, Transmission electron microscopy
Abstract: Highlights • Direct measurement of the fracture process zone using SEM, TEM and OM. • Determination of intrinsic fracture energy associated with fracture process zone. • Extraction of cohesive zone model parameters from intrinsic fracture properties. • Linking SENB and TDCB fracture tests via geometry independent fracture properties. Abstract This study presents recent achievements in understanding the fracture behaviour of rubber-modified epoxy adhesives, notably the determination of the fully developed fracture process zone (FPZ) and its associated intrinsic fracture energy, G 0 . The shape and size of the FPZ are identified by inspecting the fracture surfaces using SEM, and exploring subsurface damage using optical microscopy and TEM. The thickness and failure strain of the FPZ are found to be essentially the same for different fracture tests, i.e. tapered double cantilever beam and single edge notched bending tests. As a consequence, the results from different fracture tests are linked by using the geometrically transferable, true fracture properties, i.e. FPZ thickness and G 0 . The variation of total fracture energy observed in different fracture tests is attributed to varying plastic deformation energy dissipated in plastic deformation zone (outside FPZ). The fracture behaviour of the adhesive is then successfully predicted by a cohesive zone model using parameters extracted from experiments. [ABSTRACT FROM AUTHOR]
Copyright of Engineering Fracture Mechanics is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 132971644
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: The intrinsic fracture property of a rubber-modified epoxy adhesive: Geometrical transferability.
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  Data: <searchLink fieldCode="AR" term="%22Quan%2C+Dong%22">Quan, Dong</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Murphy%2C+Neal%22">Murphy, Neal</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Cardiff%2C+Philip%22">Cardiff, Philip</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Ivankovic%2C+Alojz%22">Ivankovic, Alojz</searchLink><relatesTo>1</relatesTo><i> alojz.ivankovic@ucd.ie</i>
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  Data: <searchLink fieldCode="JN" term="%22Engineering+Fracture+Mechanics%22">Engineering Fracture Mechanics</searchLink>. Nov2018, Vol. 203, p240-249. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Fracture+mechanics%22">Fracture mechanics</searchLink><br /><searchLink fieldCode="DE" term="%22Adhesives%22">Adhesives</searchLink><br /><searchLink fieldCode="DE" term="%22Material+plasticity%22">Material plasticity</searchLink><br /><searchLink fieldCode="DE" term="%22Scanning+electron+microscopy%22">Scanning electron microscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Transmission+electron+microscopy%22">Transmission electron microscopy</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Highlights • Direct measurement of the fracture process zone using SEM, TEM and OM. • Determination of intrinsic fracture energy associated with fracture process zone. • Extraction of cohesive zone model parameters from intrinsic fracture properties. • Linking SENB and TDCB fracture tests via geometry independent fracture properties. Abstract This study presents recent achievements in understanding the fracture behaviour of rubber-modified epoxy adhesives, notably the determination of the fully developed fracture process zone (FPZ) and its associated intrinsic fracture energy, G 0 . The shape and size of the FPZ are identified by inspecting the fracture surfaces using SEM, and exploring subsurface damage using optical microscopy and TEM. The thickness and failure strain of the FPZ are found to be essentially the same for different fracture tests, i.e. tapered double cantilever beam and single edge notched bending tests. As a consequence, the results from different fracture tests are linked by using the geometrically transferable, true fracture properties, i.e. FPZ thickness and G 0 . The variation of total fracture energy observed in different fracture tests is attributed to varying plastic deformation energy dissipated in plastic deformation zone (outside FPZ). The fracture behaviour of the adhesive is then successfully predicted by a cohesive zone model using parameters extracted from experiments. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Engineering Fracture Mechanics is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.engfracmech.2018.04.035
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      – Code: eng
        Text: English
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        PageCount: 10
        StartPage: 240
    Subjects:
      – SubjectFull: Fracture mechanics
        Type: general
      – SubjectFull: Adhesives
        Type: general
      – SubjectFull: Material plasticity
        Type: general
      – SubjectFull: Scanning electron microscopy
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      – SubjectFull: Transmission electron microscopy
        Type: general
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      – TitleFull: The intrinsic fracture property of a rubber-modified epoxy adhesive: Geometrical transferability.
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            NameFull: Murphy, Neal
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            NameFull: Cardiff, Philip
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            NameFull: Ivankovic, Alojz
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            – D: 01
              M: 11
              Text: Nov2018
              Type: published
              Y: 2018
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            – TitleFull: Engineering Fracture Mechanics
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