Effect of corrosion and fatigue on the remaining life of structures and its implication to additive manufacturing

Abstract

ABSTRACT. This paper investigates the combined effect of corrosion and fatigue on the growth of cracks that arise from natural corrosion in steel bridges. It is shown that if these two effects need to be simultaneously analyzed. If not, then the resulting life is not conservative. Consequently, to enable a better understanding of the remaining life of steel bridges this paper presents a simple methodology for performing this coupled analysis. The implication of this study to additively manufactured Ti-6Al-4V is also discussed. KEYWORDS. Steel bridges; Corrosion; Fatigue crack growth; Remaining life.Citation: Peng., D., Jones, R., Berto, F., Razavi, S.M.J., Effect of corrosion and fatigue on the remaining life of structures and its implication to additive manufacturing, Frattura ed Integrità Strutturale, 45 (2018) 33-44.

Assessment of RC Bridges integrity by means of low-cost investigations

“…The aging of materials and asset technology yields to a decline in technical efficiency or technological obsolescence. Chemical-physical tests have a fundamental role in the inspection and maintenance of installations and machines, see [1][2]. The continuous measurement of these quantities with automatic or semi-automatic methods allows to know the system state and can provide essential information for the policies on condition assessment from the maintenance point of view, see [3].…”