Author(s)

J. Toribio & V. Kharin

Abstract

A model of hydrogen induced fracture controlled by stress-strain assisted diffusion of hydrogen in metal is proposed and applied to predict time to failure of prestressing steel wires in a hydrogenous environment with different residual stress profiles introduced by surface rolling process. 1 Introduction Steel wires are used for concrete structures prestressing, a powerful civil engineering technique aiming to introduce desirable stresses and counterbalance undesirable ones so that the prestressing and service loading will produce stresses within specified limits [1]. Prestressing wires are usually made of eutectoid pearlitic steel heavily cold drawn to create elevated tensile properties. These wires, once subjected to

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