Papers by Author: Christian Carloni

Abstract: Carbon fiber reinforced polymer (CFRP) sheets have been extensively used for strengthening deteriorated concrete structures. The effectiveness of such strengthening depends upon the load transfer from concrete to the FRP composite. Shear debonding is usually caused by a crack that forms and then propagates at the interface between the adherents. The influence of the geometric parameters of the adherents on the fracture propagation is still a subject of research. This paper presents an experimental investigation performed on direct shear specimens to study the influence of the relative width of FRP and concrete on the load carrying capacity of the bond and the stress transfer between the adherents.

Abstract: In this paper, the problem of torsional buckling of a thin-walled edge cracked column, under pure bending, is studied. To the authors’ knowledge, this subject has not been widely investigated in the literature. A cracked member can buckle in the plane orthogonal to the crack and out of plane triggering the Mode-III crack opening. Analytical expressions for the characteristic equation are derived for an I-beam. The influence of the crack length and position on the buckling load is investigated.