Stochastic approach to study fatigue of concrete

✍ Scribed by Hirozo Mihashi

• Publisher: Elsevier Science
• Year: 1987
• Tongue: English
• Weight: 607 KB
• Volume: 28
• Category: Article
• ISSN: 0013-7944
• DOI: 10.1016/0013-7944(87)90070-1

✦ Synopsis

While concrete is one of the most important materials in structural engineering, the fatigue life as a function of the stress amplitude displayed a large scatter and the mechanism of the fatigue behaviour has not been clarified yet. In the present paper, the mechanism was discussed and a stochastic approach to study the fatigue behaviour was described. The fatigue process was subdivided into three stages such as mesocracks initiation, microcracks accumulation and macrocrack propagation. Since the tertiary stage is very unstable, the fatigue life may be related to the transition from the secondary stage to the tertiary stage. From such a view point, a stochastic process theory was applied to estimate the fatigue life of concrete and the agreement with published experimental results was critically discussed.