APPLICATION OF FATIGUE FRACTURE MECHANICS TO CIVIL ENGINEERING STRUCTURES

Andrea Carpinteri  Roberto Brighenti       

Anales de la Mecánica de la Fractura, nº 12 . 1995 . Pág. 11 -18
Ver (.pdf): Anales12-003

Resumen: Fatigue fracture mechanics concepts can usefully be applied in the field of civil engineering for both metallic and reinforced concrete structures. Two examples are shown in this paper. Firstly, the fatigue growth of surface cracks in metallic round bars is examined by numerically obtaining the propagation pattems for different material propreties and loading conditions. Secondly, the behaviour of a reinforced concrete beam cross-section subjected toa cyclic bending moment is analyzed by a fracture mechanics model and, in particular, the energy dissipated during the loading and unloading processes is calculated from the hysteretic loops in the moment-rotatíon diagram. Experimental tests validate the theoretical results obtained for the two above problems.

LocalizaciónA Coruña

University of Parrna. Department of Civil Engineering. Viale delle Scienze, 43100 Parma, ltaly
University of Parrna. Department of Civil Engineering. Viale delle Scienze, 43100 Parma, ltaly