Abstract
A methodology is described for the statistical characterization of fibre composite fatigue-life data. The approach determines the most appropriate probability distribution function and then estimates the associated descriptive parameters. The methodology includes the determination of the most accurate minimum-life estimation method. Two sets of carbon fibre composite fatigue-life data are found to be best characterized by Weibull distributions, from which minimum lives may be estimated. The results of this study highlight a large difference between estimated median and minimum fatigue lives of composite materials. One set of the samples exhibited a median life of 37 022 cycles and a minimum life of 0 cycles, and the other a median life of 85 250 cycles and a minimum life of 16 000 cycles. It is concluded that minimum-life S-N plots are more appropriate for use in design engineering activities than S-N plots based, in the conventional way, on median lives.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Composites Part A: Applied Science and Manufacturing
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.