The Impact of Test Number on the Mechanical Properties of Dracaena Draco Cellulose Fibers for Composite Structures: Weibull Statistic

Abstract

The production of natural fiber-based composites benefits various industries, including sports equipment, wind turbine blades, building materials, packaging, and medical devices, by enabling more environmentally friendly applications. Using a variety of statistical laws, the mechanical properties of newly generated fibers from the Dracaena draco fiber (DDF) plant are being examined in order to determine how the tests� number (N) affects the tensile behavior of the fibers. The purpose of this study is to evaluate the quasi-static stress performance of DDF fibers with a gauge length of 40?mm. In order to ascertain the effect of N on the tensile resistance, rupture deformation, and Young�s modulus of 200 DDF fibers, the fibers were tensile tested in seven groups: 30, 60, 90, 120, 150, 180, and 200. The mechanical properties data were statistically analyzed using Weibull and log-normal distributions, as well as their variability was examined and estimated via maximum likelihood and least-squares prediction model with a 95% confidence level.