A Statistical Approach to the Analysis of Fatigue Failure of Prestressed Concrete Beams

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Title: A Statistical Approach to the Analysis of Fatigue Failure of Prestressed Concrete Beams

Author(s): William J. Venuti

Publication: Journal Proceedings

Volume: 62

Issue: 11

Appears on pages(s): 1375-1394

Keywords: beam, cyclic loading, fatigue life, failure, prestressed concrete, regression analysis, research, ultimate strength

Date: 11/1/1965

Abstract:
In this research, an investigation was made of the effect of repeated loading on the variability of fatigue life of 90 pretensioned concrete beams. A regression analysis of the fatigue data led to a linear relationship between the variables of N,, predicted fatigue life, and R, load level. This equation was used to develop a relationship between N,, R, and P, probability of fatigue failure, expressed in the form of the cumulative normal distribution function.