The fatigue behaviour of a cement matrix composite reinforced by sugar cane bagasse short fibres is the focus of this research. Understanding its fatigue behaviour is useful for dimensioning components that use it as a material. The goal is to analyse the fatigue behaviour of this material in order to determine its ability to withstand use on wall structures, bracing, and false ceilings. The material mechanical properties were characterised through a series of compression and flexion tests, while the material behaviour was demonstrated through monotonic and cyclic three-point bending tests. Another fairly common representation for the composite is to visualise the variations in material properties as a function of the number of cycles. For the end of test criteria, the Wöhler curves are plotted from the strain stresses and the number of cycles. It depicts the impact of increased stress on the material service life at the point of failure. The Fatigue limit corresponds to the stress line =26.40 MPa, for which no breaking is detected after an infinite number of cycles, and the Endurance limit corresponds to the stress line =26.79 MPa, for which the stress amplitude tends to decrease as the number of cycles increases. We can use this information to control the material's quality by establishing a tolerance interval below which the pieces are considered non-compliant.
Author (s) DetailsAcodji V. Pamphile
Laboratory of Energertic and Applied Mechanics (LEMA), University of Abomey-Calavi, 01BP2009, Cotonou, Benin.
Doko K. Valery
Laboratory of Energertic and Applied Mechanics (LEMA), University of Abomey-Calavi, 01BP2009, Cotonou, Benin.
Olodo E. T. Emmanuel
Laboratory of Energertic and Applied Mechanics (LEMA), University of Abomey-Calavi, 01BP2009, Cotonou, Benin.
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