Journal
INTERNATIONAL JOURNAL OF FATIGUE
Volume 37, Issue -, Pages 79-85Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ijfatigue.2011.10.006
Keywords
Fatigue; Concrete; Wohler curves; Flexion; Continuum Damage
Ask authors/readers for more resources
A three-dimensional phenomenological model is developed to describe the fatigue behavior of concrete. The approach is based on the framework of continuum damage mechanics where the fatigue model is derived by means of Mango's formulation where the yield concept is replaced by a loading-unloading irreversibility concept allowing to account for damage accumulation even for loading levels below the yield surface. Specifically, a static damage model is proposed and deeply investigated. Its extension to the fatigue range is proposed through two different functions of the power-law-type. While the first one only needs one additional parameter, the second one needs three additional parameters. In all cases, these latters need to be identified by means of fatigue tests through Wohler curves. In this paper, flexural fatigue tests have been performed on a concrete the formulation of which is close to the one used for urban railway slabs. A set of numerical examples is presented. It shows good agreements with the present experimental results together with some data found in the literature. (C) 2011 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available