An approach for the modeling of interface-body coupled nonlocal damage
Fiber Reinforced Plastic (FRP) can be used for strengthening concrete or masonry constructions. One of the main problem in the use of FRP is the possible detachment of the reinforcement from the support material. This paper deals with the modeling of the FRP-concrete or masonry damage interface, acc...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2010-04-01
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| Series: | Fracture and Structural Integrity |
| Subjects: | |
| Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero12/numero_12_art_2.pdf |
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| _version_ | 1841562232511528960 |
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| author | J. Toti E. Sacco S. Marfia |
| author_facet | J. Toti E. Sacco S. Marfia |
| author_sort | J. Toti |
| collection | DOAJ |
| description | Fiber Reinforced Plastic (FRP) can be used for strengthening concrete or masonry constructions. One of the main problem in the use of FRP is the possible detachment of the reinforcement from the support material. This paper deals with the modeling of the FRP-concrete or masonry damage interface, accounting for the coupling occurring between the degradation of the cohesive material and the FRP detachment. To this end, a damage model is considered for the quasi-brittle material. In order to prevent strain localization and strong mesh sensitivity of the solution, an integral-type of nonlocal model based on the weighted spatial averaging of a strain-like quantity is developed. Regarding the interface, the damage is governed by the relative displacement occurring at bond. A suitable interface model which accounts for the mode I, mode II and mixed mode of damage is developed. The coupling between the body damage and the interface damage is performed computing the body damage on the bond surface. Numerical examples are presented. |
| format | Article |
| id | doaj-art-33d44a9135924cc38466ef802eb15d2c |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2010-04-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-33d44a9135924cc38466ef802eb15d2c2025-01-03T01:05:14ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932010-04-014121320An approach for the modeling of interface-body coupled nonlocal damageJ. TotiE. SaccoS. MarfiaFiber Reinforced Plastic (FRP) can be used for strengthening concrete or masonry constructions. One of the main problem in the use of FRP is the possible detachment of the reinforcement from the support material. This paper deals with the modeling of the FRP-concrete or masonry damage interface, accounting for the coupling occurring between the degradation of the cohesive material and the FRP detachment. To this end, a damage model is considered for the quasi-brittle material. In order to prevent strain localization and strong mesh sensitivity of the solution, an integral-type of nonlocal model based on the weighted spatial averaging of a strain-like quantity is developed. Regarding the interface, the damage is governed by the relative displacement occurring at bond. A suitable interface model which accounts for the mode I, mode II and mixed mode of damage is developed. The coupling between the body damage and the interface damage is performed computing the body damage on the bond surface. Numerical examples are presented.http://www.gruppofrattura.it/pdf/rivista/numero12/numero_12_art_2.pdfInterface damageBody damageCoupled modelFRP strengthening |
| spellingShingle | J. Toti E. Sacco S. Marfia An approach for the modeling of interface-body coupled nonlocal damage Fracture and Structural Integrity Interface damage Body damage Coupled model FRP strengthening |
| title | An approach for the modeling of interface-body coupled nonlocal damage |
| title_full | An approach for the modeling of interface-body coupled nonlocal damage |
| title_fullStr | An approach for the modeling of interface-body coupled nonlocal damage |
| title_full_unstemmed | An approach for the modeling of interface-body coupled nonlocal damage |
| title_short | An approach for the modeling of interface-body coupled nonlocal damage |
| title_sort | approach for the modeling of interface body coupled nonlocal damage |
| topic | Interface damage Body damage Coupled model FRP strengthening |
| url | http://www.gruppofrattura.it/pdf/rivista/numero12/numero_12_art_2.pdf |
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