Coupled interface-body nonlocal damage models for the analysis of FRP strengthening detachment from cohesive material

Update: 2012-10-01

Description

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 material strengthened with external FRP reinforcements.

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Coupled interface-body nonlocal damage models for the analysis of FRP strengthening detachment from cohesive material

S. Marfia, E. Sacco, J. Toti

#box-pro-ellipsis-176099469962544{-webkit-line-clamp:2;}Coupled interface-body nonlocal damage models for the analysis of FRP strengthening detachment from cohesive material

Coupled interface-body nonlocal damage models for the analysis of FRP strengthening detachment from cohesive material

S. Marfia, E. Sacco, J. Toti

Coupled interface-body nonlocal damage models for the analysis of FRP strengthening detachment from cohesive material