Fatigue life of concrete: Experimental study on the influence of loading conditions and material strength

Keywords: concrete, cyclic compression, fatigue, low cycle fatigue, fatigue life

Abstract

This work presents an experimental investigation aiming to evaluate the influence on the concrete fatigue behavior regarding the loading frequency, load intensity and the material’s compressive strength. Tests were carried out considering three loading frequencies (0.125, 0.25 and 0.5 Hz), two levels of maximum stress (50% and 70% of the compressive strength) and concretes made with three different compressive strength (30, 50 and 70 MPa). The results point out that as the loading frequency is increased, the fatigue life increases exponentially. However, it was observed that the fatigue life is shorter in high-strength concretes, i.e., the fatigue life presented an inverse relationship with the compressive strength.

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Author Biography

Emerson Felipe Felix, University of São Paulo at São Carlos School of Engineering

Graduado em Engenharia Civil de Infraestrutura (2016) pela Universidade Federal da Integração Latino-Americana (UNILA). Mestrando do Programa de Engenharia de Estruturas da Escola de Engenharia de São Carlos, USP, com pesquisas relacionadas à modelagem numérica e computacional via MEF e RNA’s, atuando nas áreas de estruturas de concreto, carbonatação, durabilidade e vida útil de estruturas de concreto.

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Published
2022-01-01
How to Cite
Felix, E. F., Carrazedo, R., & Possan, E. (2022). Fatigue life of concrete: Experimental study on the influence of loading conditions and material strength. Revista ALCONPAT, 12(1), 1 - 15. https://doi.org/10.21041/ra.v12i1.562