<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "Delamination in FRP-strengthened structures: acoustic emission monitoring and numerical modeling"^^ . "A case study concerning both numerical modeling and in-situ monitoring of a retrofitted RC beam\r\nwith non-rectangular cross-section is presented. Before retrofitting, non-destructive techniques,\r\nsuch as pull-out and impact tests, were used to estimate the mechanical parameters of concrete. At\r\nthe same time, a long-term monitoring with the Acoustic Emission (AE) technique was carried out\r\nin order to investigate on creep effects and microcracking phenomena. Then, after a complete\r\nremoval of the overload and retrofitting with FRP sheets, an in-situ loading test was performed. At\r\nthat stage, the AE technique was again profitably used for the analysis of the cracking progression\r\nleading to FRP debonding. A numerical model of the structure is then proposed in the framework\r\nof the FE discretization with mechanical parameters estimated according to an inverse analysis on\r\nthe monitored mechanical behavior of the structure before retrofitting. According to this model, it\r\nis clearly demonstrated that, when the flexural inertia of the retrofitted beam is considerably\r\nhigher than that of the unrepaired beam, snap-back instabilities can take place. Finally,\r\nconsidering the self-similarity between the acoustic emission phenomenon and seismicity, an\r\nanalogy between the snap-back instability of the FRP delamination and that occurring during fault\r\ngrowth is proposed."^^ . "2005" . . "Firenze University Press"^^ . . "Firenze University Press"^^ . . . . . . . . . . . . . . "Marco"^^ . "Paggi"^^ . "Marco Paggi"^^ . . "Giuseppe"^^ . "Lacidogna"^^ . "Giuseppe Lacidogna"^^ . . "Alberto"^^ . "Carpinteri"^^ . "Alberto Carpinteri"^^ . . . . . "HTML Summary of #1932 \n\nDelamination in FRP-strengthened structures: acoustic emission monitoring and numerical modeling\n\n" . "text/html" . . . "TJ Mechanical engineering and machinery"@en . .