Bond-slip analysis via a cohesive-zone model simulating damage, friction and interlocking
A recently proposed cohesive-zone model which effectively combines damage, friction and mechanical interlocking has been revisited and further validated by numerically simulating the pull-out test, from a concrete block, of a ribbed steel bar in the post-yield deformation range. The simulated resp...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2014-07-01
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| Series: | Fracture and Structural Integrity |
| Subjects: | |
| Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero29/numero_29_art_24.pdf |
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| _version_ | 1846092591793176576 |
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| author | R. Serpieri L. Varricchio E. Sacco G. Alfano |
| author_facet | R. Serpieri L. Varricchio E. Sacco G. Alfano |
| author_sort | R. Serpieri |
| collection | DOAJ |
| description | A recently proposed cohesive-zone model which effectively combines damage, friction and
mechanical interlocking has been revisited and further validated by numerically simulating the pull-out test,
from a concrete block, of a ribbed steel bar in the post-yield deformation range. The simulated response is in
good agreement with experimental measurements of the bond slip characteristics in the post-yield range of
deformed bars reported in the literature. This study highlights the main features of the model: with physically
justified and relatively simple arguments, and within the sound framework of thermodynamics with internal
variables, the model effectively separates the three main sources of energy dissipation, i.e. loss of adhesion,
friction along flat interfaces and mechanical interlocking. This study provides further evidence that the
proposed approach allows easier and physically clearer procedures for the determination of the model
parameters of such three elementary mechanical behaviours, and makes possible their interpretation and
measurement as separate material property, as a viable alternative to lumping these parameters into single values
of the fracture energy. In particular, the proposed approach allows to consider a single value of the adhesion
energy for modes I and II. |
| format | Article |
| id | doaj-art-a06539f0386949599f557ea26a9455a8 |
| institution | Kabale University |
| issn | 1971-8993 1971-8993 |
| language | English |
| publishDate | 2014-07-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-a06539f0386949599f557ea26a9455a82025-01-02T20:55:27ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89931971-89932014-07-0182928429210.3221/IGF-ESIS.29.24Bond-slip analysis via a cohesive-zone model simulating damage, friction and interlockingR. Serpieri0L. Varricchio1E. Sacco2G. Alfano3Università degli Studi del Sannio, BeneventoUniversità degli Studi del Sannio, BeneventoUniversità di Cassino e del Lazio MeridionaleBrunel University, Uxbridge, UKA recently proposed cohesive-zone model which effectively combines damage, friction and mechanical interlocking has been revisited and further validated by numerically simulating the pull-out test, from a concrete block, of a ribbed steel bar in the post-yield deformation range. The simulated response is in good agreement with experimental measurements of the bond slip characteristics in the post-yield range of deformed bars reported in the literature. This study highlights the main features of the model: with physically justified and relatively simple arguments, and within the sound framework of thermodynamics with internal variables, the model effectively separates the three main sources of energy dissipation, i.e. loss of adhesion, friction along flat interfaces and mechanical interlocking. This study provides further evidence that the proposed approach allows easier and physically clearer procedures for the determination of the model parameters of such three elementary mechanical behaviours, and makes possible their interpretation and measurement as separate material property, as a viable alternative to lumping these parameters into single values of the fracture energy. In particular, the proposed approach allows to consider a single value of the adhesion energy for modes I and II.http://www.gruppofrattura.it/pdf/rivista/numero29/numero_29_art_24.pdfFracture energy; Friction; Interlocking; Thermodynamics with Internal Variables; Interface Elements; Mixed-mode Delamination. |
| spellingShingle | R. Serpieri L. Varricchio E. Sacco G. Alfano Bond-slip analysis via a cohesive-zone model simulating damage, friction and interlocking Fracture and Structural Integrity Fracture energy; Friction; Interlocking; Thermodynamics with Internal Variables; Interface Elements; Mixed-mode Delamination. |
| title | Bond-slip analysis via a cohesive-zone model simulating damage, friction and interlocking |
| title_full | Bond-slip analysis via a cohesive-zone model simulating damage, friction and interlocking |
| title_fullStr | Bond-slip analysis via a cohesive-zone model simulating damage, friction and interlocking |
| title_full_unstemmed | Bond-slip analysis via a cohesive-zone model simulating damage, friction and interlocking |
| title_short | Bond-slip analysis via a cohesive-zone model simulating damage, friction and interlocking |
| title_sort | bond slip analysis via a cohesive zone model simulating damage friction and interlocking |
| topic | Fracture energy; Friction; Interlocking; Thermodynamics with Internal Variables; Interface Elements; Mixed-mode Delamination. |
| url | http://www.gruppofrattura.it/pdf/rivista/numero29/numero_29_art_24.pdf |
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