A Probabilistic Fatigue Model for Quasi-Brittle Materials

DOI

10.2991/ccit-14.2014.84How to use a DOI?

Keywords

Fatigue, frequency effect, probabilistic model, secondary strain rate

Abstract

We aim to develop a new fatigue model valid for quasi-brittle materials like concrete, which properties have considerably larger standard deviation than metals. Having this in mind, we fit the measured strength data with a three-parameter Weibull cumulative distribution function and in turn take it as the initial distribution for an asymptotic fatigue model in concrete. We also take into account the observed influence of frequency and stress ratio on the fatigue life in concrete, both plain and reinforced with fibers. The developed model is validated against fatigue tests in compression on cubic specimens for different stress ratios and loading frequencies. The secondary strain rate is also found to be correlational with the number of cycles to failure.

Copyright

© 2014, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Rena C. Yu
AU  - Luis Saucedo
AU  - Gonzalo Ruiz
PY  - 2014/01
DA  - 2014/01
TI  - A Probabilistic Fatigue Model for Quasi-Brittle Materials
BT  - Proceedings of the 2014 International Conference on Computer, Communications and Information Technology
PB  - Atlantis Press
SP  - 323
EP  - 325
SN  - 1951-6851
UR  - https://doi.org/10.2991/ccit-14.2014.84
DO  - 10.2991/ccit-14.2014.84
ID  - Yu2014/01
ER  -