A coupled interface-body nonlocal damage model for the analysis of FRP strengthening detachment from cohesive material 

Journal Title: Frattura ed Integrità Strutturale - Year 2011, Vol 5, Issue 18

Abstract

In the present work, a new model of the FRP-concrete or masonry interface, which accounts for the coupling occurring between the degradation of the cohesive material and the FRP detachment, is presented; in particular, a coupled interface-body nonlocal damage model is proposed. A nonlocal damage and plasticity model is developed for the quasi-brittle material. For the interface, a model which accounts for the mode I, mode II and mixed mode of damage and for the unilateral contact and friction effects is developed. Two different ways of performing the coupling between the body damage and the interface damage are proposed and compared. Some numerical applications are carried out in order to assess the performances of the proposed model in reproducing the mechanical behavior of the masonry elements strengthened with external FRP reinforcements. 

Authors and Affiliations

Sonia Marfia, Elio Sacco, J. Toti

Keywords

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  • EP ID EP103014
  • DOI 10.3221/IGF-ESIS.18.03
  • Views 42
  • Downloads 0

How To Cite

Sonia Marfia, Elio Sacco, J. Toti (2011). A coupled interface-body nonlocal damage model for the analysis of FRP strengthening detachment from cohesive material . Frattura ed Integrità Strutturale, 5(18), 23-33. https://europub.co.uk/articles/-A-103014