D’Amore, A.; Grassia, L. The Fatigue Response’s Fingerprint of Composite Materials Subjected to Constant and Variable Amplitude Loadings. J. Compos. Sci.2024, 8, 11.
D’Amore, A.; Grassia, L. The Fatigue Response’s Fingerprint of Composite Materials Subjected to Constant and Variable Amplitude Loadings. J. Compos. Sci. 2024, 8, 11.
D’Amore, A.; Grassia, L. The Fatigue Response’s Fingerprint of Composite Materials Subjected to Constant and Variable Amplitude Loadings. J. Compos. Sci.2024, 8, 11.
D’Amore, A.; Grassia, L. The Fatigue Response’s Fingerprint of Composite Materials Subjected to Constant and Variable Amplitude Loadings. J. Compos. Sci. 2024, 8, 11.
Abstract
This paper discusses the theoretical and experimental correlations between fatigue and static strength statistical distributions. We use a two-parameter residual strength model that obeys the qualitative Strenght-Life Equal-Rank (SLERA) assumption for guidance. The modeling approach consists of recovering the model's parameters by best fitting the constant amplitude (CA) fatigue data at a given stress ratio, R, and the experimental Weibull parameters of the static strength distribution function. Once the model's parameters are fixed, its capabilities, potential, and limits are discussed by comparing its predictions with residual strength and fatigue data obtained at different stress ratios, R. Moreover, from a preliminary analysis, the theoretical extension of the model's capabilities to variable amplitude loadings is conceptualized. The application of Miner's rule is also discussed and compared with a new damage rule to analyze the fatigue responses under variable amplitude loadings.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
