TY - JOUR KW - curved beams KW - plate end debonding KW - finite elements KW - fracture mechanics KW - FRP reinforcement KW - plated beams KW - snap-back instability VL - 13 Y1 - 2010/// A1 - Zavarise, Giorgio A1 - Carpinteri, Alberto A1 - Paggi, Marco A1 - De Lorenzis, Laura UR - http://dx.doi.org/10.1260/1369-4332.13.5.875 TI - Technical Papers: Linear elastic fracture mechanics approach to plate end debonding in rectilinear and curved plated beams SP - 875 AV - none IS - 5 PB - Multi-Science Publishing JF - Advances in Structural Engineering N2 - This paper proposes a linear elastic fracture mechanics approach for the prediction of plate end debonding in rectilinear and curved plated beams. The analytical model results in simple equations, suitable for immediate design use. The load-deflection curve of a plated beam, from the onset of debonding up to the complete separation of the plate, is obtained by controlling the length of the interfacial debonding crack. Its shape clearly shows that snap-back or snap-through instabilities may arise when the beam is loaded under displacement or force control. Analytical predictions are also compared with finite element results based on an interfacial cohesive crack model. It is shown that the predictions of the proposed analytical model match closely the numerical solution, provided that an effective crack length accounting for the size of the fracture process zone is used in the calculations. EP - 889 ID - eprints1983 SN - 1369-4332 ER -