Contributo in volume, 2014, ENG

Chapter 4: Fatigue

Croce P.; Beconcini M. L.; Pellegrini D.; Tanner P.

Dipartimento di Ingegneria Civile e Industriale, Università di Pisa, Pisa, Italy; Dipartimento di Ingegneria Civile e Industriale, Università di Pisa, Pisa, Italy; CNR-ISTI, Pisa, Italy; Eduardo Torroja Institute for Construction Sciences, IETCC-CSIC, Madrid, Spain

Fatigue is one the most relevant cause of failure of infrastructures or part of them, like bridges, cranes and machinery, offshore structures and so on. A lot of existing structures, mainly built before the 1980, have been designed using inappropriate fatigue classification of details or underestimating the aggressiveness of actual load spectra, so that they are subject to high fatigue failure risk, as demonstrated by fatigue cracks detected even recently in several structures. Fatigue assessment and evaluation of residual fatigue life is then a key topic in verification of existing infrastructure, also in view of designing repair interventions of fatigue damaged details and planning of future maintenance and inspection programmes.

Keywords

Fatigue

CNR authors

Pellegrini Daniele

CNR institutes

ISTI – Istituto di scienza e tecnologie dell'informazione "Alessandro Faedo"